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Review of Anker Astro E5 15000 mAh external battery w/pics!!!

This is a review of Anker Astro E5 15000 mAh external battery: http://www.ianker.com/product/79AN15K-WA
Being familiar with footprint of their E4 battery, when Anker announced a new E5 model with higher capacity I was expecting to see bigger and heavier model with a typical 30% efficiency loss. I know I bring it up in a lot of the reviews, but labeled capacity of ANY external battery is not what your phone battery going to see. Its a total capacity of cells inside of external battery which gets converted to 5V usb interface output and then back to your cell phone battery while charging - the efficiency loss during the conversion reduces the actual capacity by approximately 30%, with some batteries close to 40% and others maybe slightly better to 25%. On top of that, a lot of no name ebay HK sellers have batteries with super exaggerated capacity where you will be lucky to get even half of what they advertise on the label. That is why I only trust a few brands, Anker being one of them.
Once I received E5 unit for review to my surprise, the footprint stayed almost unchanged and difference in weight was negligible in comparison to previous E4 gen. But you actually get 2000 mAh more in capacity to bring it up to 15000 mAh. The battery cells are changing and improving, and I'm glad to see that Anker is keeping up with a new technology. E5 external battery is not exactly feather light, but at about 11.1 oz and 5"x3"x0.9" is manageable and actually the same as Note 2 with Zerolemon battery. The exterior is solid plastic, no flex, and comes in either white or black. For this review I chose a white unit and found it to be great to cover up any fingerprints. The top has a large power button with dual functionality to also turn on built-in led light. At full charged battery capacity, the light could last up to 700 hours if you only use it for that purpose. Next to power button you have 4-led capacity/charging indicator in 25% increments. Charging input to the battery is a standard micro-usb and has 1.5A charging speed for a fast charging of this battery. Output is a dual full usb port, rated at 2A and 1A both of which can be used simultaneously to deliver 3A of combined current. Each port current output is regulated where I confirmed charging Note 2 from one gave me max 2A and from the other one only up to 1A.
This extended battery comes with usb cable and interchangeable tips for micro-usb, mini-usb, and apple 30-pin connector. Also, it comes with a convenient storage pouch for a battery, cable, and attachment. It also comes with a detailed manual and 18-month warranty card. But there is also a big surprise. I have been reading other independent test reviews of this module and it turned out to have an actual capacity close to 11,800 mAh. We are talking about 21.5% efficiency loss which is very good considering typical batteries of such capacity have it at 30% or higher. This mean you can charge your Note 2 with a standard battery almost 4 times, or easily charge Zerolemon and have some juice still left - all this at a max 2A speed. Overall, I'm very impressed with this battery and its performance!
Here are the pictures.
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Awesome! Thanks for this! What are you using to measure the charge that is going in to the Note 2? I have an external battery rated at 12,000mah, that has both 1A and 2A ports, and would like to see what it's actually putting out, as well as check some wall adaptors that I have. Thanks for the review! Anker is also one of the few brands that I trust as well!
SwiftKey'ed from my White Sprint Note 2 using XDA Premium

stanglifemike said:
Awesome! Thanks for this! What are you using to measure the charge that is going in to the Note 2? I have an external battery rated at 12,000mah, that has both 1A and 2A ports, and would like to see what it's actually putting out, as well as check some wall adaptors that I have. Thanks for the review! Anker is also one of the few brands that I trust as well!
SwiftKey'ed from my White Sprint Note 2 using XDA Premium
Click to expand...
Click to collapse
it says it in the last screenshot dude, really? LOL
Galaxy Charging Current

Galaxy Charging Current *Lite* (free version): https://play.google.com/store/apps/...hbnRpcy5nYWxheHljaGFyZ2luZ2N1cnJlbnQuZnJlZSJd
I actually found it to be relatively accurate by comparing charging time versus charging percentage. Ignore "Now" value. Just look for Max/Avg as your charging currents. This app comes very handy for those without root, like myself, to measure your charging current.

vectron said:
Galaxy Charging Current *Lite* (free version): https://play.google.com/store/apps/...hbnRpcy5nYWxheHljaGFyZ2luZ2N1cnJlbnQuZnJlZSJd
I actually found it to be relatively accurate by comparing charging time versus charging percentage. Ignore "Now" value. Just look for Max/Avg as your charging currents. This app comes very handy for those without root, like myself, to measure your charging current.
Click to expand...
Click to collapse
Thanks!! Just tested it out. Like you said, the Now value isn't what the charging rate actually is. Took me reading some reviews on the Play Store to figure that out. The Now value is what the device recommends, while the Average value is what rate you're actually charging at.
I'm not sure how accurate it is though. While using my HTC wall chargers that came with my both my black Evo LTE and white one, the values are Maximum 900, Now 1798, and Average 900. I'm getting the same numbers while using the Samsung wall charger that came with my Note 2. I assume that 900 is correct for the HTC chargers, as they're only 1Amp chargers so I'm getting .9Amp from them. The Samsung charger is 2Amp though, so it should be twice as high as the HTC chargers.
EDIT : Just tested my 12,000mah PowerBank. I got 500 out of the 1Amp port, and 1700 out of the 2Amp port! Very happy with those numbers!! Especially it considering that it appears to be charging at a higher rate than my OEM Samsung wall charger!!!
SwiftKey'ed from my White Sprint Note 2 using XDA Premium

:good:Solid review bro! Something that powerful could almost charge the ZL battery twice, haha.

stanglifemike said:
...
I'm not sure how accurate it is though. While using my HTC wall chargers that came with my both my black Evo LTE and white one, the values are Maximum 900, Now 1798, and Average 900. I'm getting the same numbers while using the Samsung wall charger that came with my Note 2. I assume that 900 is correct for the HTC chargers, as they're only 1Amp chargers so I'm getting .9Amp from them. The Samsung charger is 2Amp though, so it should be twice as high as the HTC chargers.
EDIT : Just tested my 12,000mah PowerBank. I got 500 out of the 1Amp port, and 1700 out of the 2Amp port! Very happy with those numbers!! Especially it considering that it appears to be charging at a higher rate than my OEM Samsung wall charger!!!
...
Click to expand...
Click to collapse
Mike, which 12kmAh charger are you using? I know Anker stuff is universal for Apple/Android, while some other ones will drop your charging current to max 0.5A when connected to "apple" port. Another question, which usb cable are you using? Unless if its original Sammy cable that came with OEM charger or a cable like from monoprice with 24AWG/28AWG rating (thicker power wires to handle up to 3A of current), the cable itself its a bottleneck if its designed for a lower charging current. So for example, if you are using HTC charger/cable and then used their cable to connect to Samsung wall charger - you could be current limiting your phone (thinner wires, more resistance). And even if you are using OEM Samsung wall charger and cable - I noticed that in our house some outlets can't supply enough current depending on what other stuff is connected to the same shared power branch.

vectron said:
Mike, which 12kmAh charger are you using? I know Anker stuff is universal for Apple/Android, while some other ones will drop your charging current to max 0.5A when connected to "apple" port. Another question, which usb cable are you using? Unless if its original Sammy cable that came with OEM charger or a cable like from monoprice with 24AWG/28AWG rating (thicker power wires to handle up to 3A of current), the cable itself its a bottleneck if its designed for a lower charging current. So for example, if you are using HTC charger/cable and then used their cable to connect to Samsung wall charger - you could be current limiting your phone (thinner wires, more resistance). And even if you are using OEM Samsung wall charger and cable - I noticed that in our house some outlets can't supply enough current depending on what other stuff is connected to the same shared power branch.
Click to expand...
Click to collapse
I think PowerBank is the brand, and Long March is the model. There is a long thread in the Evo LTE Accessories subforum (my other phone), and that's how I heard about it. I normally wouldn't buy an off brand accessory, but with many XDA members giving great feedback, and some have had it close to a year, I decided to try it out. Very happy that I did!! I looks a lot like your Anker actually. It has 2 USB ports for charging other devices, a 1 Amp and a 2 Amp, and also has a little LED flashlight as well. It works great and this app you mentioned showed me that the 2 Amp port is charging at 1.7 Amp(while using my HTC micro USB cable, so it may charge at an even higher rate using the Samsung cable), so I'm happy with that.
For the Samsung wall charger, I'm using the Samsung wall charger and Samsung micro USB cable. I do have it plugged in to a power strip though, so I'll have to try it plugged directly in to a wall outlet with nothing else plugged in. Thanks for the info!
EDIT : Update - after trying the Samsung charger in a wall outlet instead of the power strip, I'm still getting 900(.9 Amp). Maybe my charger is just not putting out the Amperage it should anymore, and I should just buy another Samsung wall charger if I want to get the correct Amperage. I rarely use my wall charger though, as I just use my external battery charger to charge my extra Samsung battery. When I do plug in the phone, it's usually in to my PowerBank while I'm sitting outside playing on my phone and drinking/smoking (never smoke in my house!).
SwiftKey'ed from my White Sprint Note 2 using XDA Premium

stanglifemike said:
I think PowerBank is the brand, and Long March is the model. There is a long thread in the Evo LTE Accessories subforum (my other phone), and that's how I heard about it. I normally wouldn't buy an off brand accessory, but with many XDA members giving great feedback, and some have had it close to a year, I decided to try it out. Very happy that I did!! I looks a lot like your Anker actually. It has 2 USB ports for charging other devices, a 1 Amp and a 2 Amp, and also has a little LED flashlight as well. It works great and this app you mentioned showed me that the 2 Amp port is charging at 1.7 Amp(while using my HTC micro USB cable, so it may charge at an even higher rate using the Samsung cable), so I'm happy with that.
For the Samsung wall charger, I'm using the Samsung wall charger and Samsung micro USB cable. I do have it plugged in to a power strip though, so I'll have to try it plugged directly in to a wall outlet with nothing else plugged in. Thanks for the info!
EDIT : Update - after trying the Samsung charger in a wall outlet instead of the power strip, I'm still getting 900(.9 Amp). Maybe my charger is just not putting out the Amperage it should anymore, and I should just buy another Samsung wall charger if I want to get the correct Amperage. I rarely use my wall charger though, as I just use my external battery charger to charge my extra Samsung battery. When I do plug in the phone, it's usually in to my PowerBank while I'm sitting outside playing on my phone and drinking/smoking (never smoke in my house!).
SwiftKey'ed from my White Sprint Note 2 using XDA Premium
Click to expand...
Click to collapse
What you refer to is Yoobao brand power bank model "Long March". Unfortunately, there is only one official reseller of Yoobao brand in US and its KeviKev (I reviewed Yoobao Thunder 13000 mAh from them before - http://kevikev.com/Samsung-Galaxy-NOTE-II-2-N7100-Cases-and-Accessories_c47.htm). Long March is 11,200 mAh model. Did you get it from Amazon or eBay? It's a Chinese knock off of Yoobao, but it doesn't matter since it works for you. They all use the same battery cells anyway, and original Yoobao stuff might be a bit more robust and have more durable plastic shell. But listen, if the one you have works - its all good and don't worry about it!!!
Strange about Samsung wall charger. Sounds like something is gone south. Btw, don't even bother buying anything labeled as "original OEM Samsung wall charger" from Amazon or eBay - it's all fake knock offs as well. For the fun I just look on Amazon reviews, and everybody complaining about Samsung OEM wall charger not even being able to supply 1A. That's a problem with Amazon, anybody can create a merchant account and list their product under original manufacturer listing. And the rest is history because you will never be able to find original Samsung part since everything else will be a fake copy But I assume you are using your original wall charger and cable which came from Samsung when you bought N2?

flynnchen said:
Yoobao brand is quite good. I had one before. Is anker battery stable now ? I just found out this post on xda
http://forum.xda-developers.com/showthread.php?t=1361749
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Click to collapse
That explosion has nothing to do with Anker batteries. That was highly/almost 100% due to the black cheap/low amp charger. I had a random cheap black USB charger similar to that for charging low amp Emerson bluetooth headphones, which was 400 mAH output, and we charged my brother's IPAD 2 with it, and it started to smoke. Same issue happened when charging his S3 with that cheap charger. I think it was their mistake for providing such a terrible charger, which is why it seemed the white one was probably better. The lesson is: don't charge anything that has a higher capacity/requirement with something far below it's capacity - otherwise, you're just asking for a dangerous situation to occur. That's just my two cents and observation from what I have seen, read, and personally experienced

how to charge
Excellent and informative review! 2 questions (I am a novice...). How do I charge the charger...can I use either my iphone 5 plug (output 5V/1A) or ipad2 plug? And, when charging my devices, is it the 1A socket for iphone 5, and 2A socket for ipad 2? Thank you!
---------- Post added at 10:18 AM ---------- Previous post was at 10:07 AM ----------
Excellent and informative review! 2 questions (I am a novice...). How do I charge the charger...can I use either my iphone 5 plug (output 5V/1A) or ipad2 plug? And, when charging my devices, is it the 1A socket for iphone 5, and 2A socket for ipad 2? Thank you!

maestrojohn said:
Excellent and informative review! 2 questions (I am a novice...). How do I charge the charger...can I use either my iphone 5 plug (output 5V/1A) or ipad2 plug? And, when charging my devices, is it the 1A socket for iphone 5, and 2A socket for ipad 2? Thank you!
Click to expand...
Click to collapse
To charge the charger you can use any wall charger with micro-usb output. Since this is Android forum and Note 2 section, I assume you have one of those. Otherwise as you aware the charging cable for iPhone 5 is not micro-usb. But to charge your device, you can do that with any phone or tablet since charging/data cables have usb on one side (that will go into a charger) and whatever connector you are using on your device on the other side of the cable. In theory you can use either outputs.

Hello! Great review, I purchased it for 50 bucks on amazon 5 minutes ago because of the review. I am a noob, sorry in advance, I made this account to ask these two questions: 1: I just wanna use it for my iPhone 5, do i plug it in on the 1A or 2A? If both is ok, which one is better for the battery in the phone? 2: I will need an adapter, which one is better? Micro Usb to Lightning or 30pin to Lightning? I dont like the size of the 30 pin to lighting, so is it ok to purchase a micro usb to lighting instead? Does this affect anything like charging time?
Thanks for answering, have a nice day

flotschi13 said:
Hello! Great review, I purchased it for 50 bucks on amazon 5 minutes ago because of the review. I am a noob, sorry in advance, I made this account to ask these two questions: 1: I just wanna use it for my iPhone 5, do i plug it in on the 1A or 2A? If both is ok, which one is better for the battery in the phone? 2: I will need an adapter, which one is better? Micro Usb to Lightning or 30pin to Lightning? I dont like the size of the 30 pin to lighting, so is it ok to purchase a micro usb to lighting instead? Does this affect anything like charging time?
Thanks for answering, have a nice day
Click to expand...
Click to collapse
You can use either 1A or 2A outputs. Your phone has a fixed charging speed and will not draw more current that it's limited to. So for example if iPhone can charger at a speed of 1A per hour and you connect it to an output that can supply 2A per hour - it will only draw at 1A per hour speed. BUT, if you have Note 2 which takes advantage of 2A per hour charging and you plug it into 1A port, it will be charging at half the speed.
Regarding cable, try to minimize number of connecting adapters. For example, you get a cable with 30pin connector and you can add 30pin to Lighting adapter to it, but with every connection you add resistance which going to affect total amount of current and can slow down the charging, etc. You want to have point-to-point cable. So I would recommend using USB to Lighting connector cable. Not micro-usb, but usb because charing ports on this external power supply are full size usb. Only the port to charge this battery is micro-usb because of a common connection with other charging cables.

reply removed...

I wonder if you could try something for me.
Could you find out if the Anker will supply a phone/device while it is itself being charged? Also, whether it will keep supplying the phone/device without interruption when its own charging supply is connected and disconnected?
I want to use it like a mini-UPS for my phone while charging it from my bicycle dynamo, but for this, it needs to cope with a charging supply which stops and starts, while continuing to supply any connected devices.

I think I tried it before, and it didn't work. These external battery devices are not intended to work in pass-through mode. I think there are some other ones (I'm 100% sure if that was NewTrent), but the vendor will not guarantee the device under warranty because of an additional overheating and cut of the efficiency. This will really complicate the controller of such ext battery where it has to keep balance between charging and discharging of the same battery at the same time. I'm pretty sure Anker stuff will not allow that because they have smart current monitoring functionality built-in in order not to overcharge or over-drain the device.
But it would be an interesting experiment where you connect ext battery to the outlet and to the phone. I wonder if it starts charging battery first until it's full, and then switch to charging the phone

vectron said:
I think I tried it before, and it didn't work. These external battery devices are not intended to work in pass-through mode. I think there are some other ones (I'm 100% sure if that was NewTrent), but the vendor will not guarantee the device under warranty because of an additional overheating and cut of the efficiency. This will really complicate the controller of such ext battery where it has to keep balance between charging and discharging of the same battery at the same time. I'm pretty sure Anker stuff will not allow that because they have smart current monitoring functionality built-in in order not to overcharge or over-drain the device.
But it would be an interesting experiment where you connect ext battery to the outlet and to the phone. I wonder if it starts charging battery first until it's full, and then switch to charging the phone
Click to expand...
Click to collapse
I did just that yesterday, and it worked fine. Now, the anker would not actually increase its charge due to simpe physics: it charges with 1.5A from the wall, and my nexus 10 used 1.2A of those, and adding some inefficiencies on that it would likely mean that it would just hold a charge level in the anker battery, not increase it. But as soon as the tablet ramps its current draw down the anker would suck up any left over juice. This becomes even worse of course if you charge a phone at the same time.
One little note: The battery in this is not the most awesome (also the capacity measurement is a simple voltage-based instead of counting coulumbs). While charging with ~1A from the 1A port, when I added my nexus 10 to the 2A port the charge indicator actually went from 50% to 25%. When removing the tablet the LEDs indicated 50% charge again. This is due to voltage sag which is itself due to internal resistance of the batteries. Meaning: The faster you charge the more heat will be wasted in the batteries. So to really prolong the battery life you should actually charge slowly, at least as far as the Anker is concerned.

Thanks for the review, I will probably be getting one now.

Review of Anker® 40W 5-Port USB Family-Sized Desktop Charger with a short video

Video: youtu.be/Gn-Ijed44SU
This product feels nice and solid. It has an attractive matte finish (at least on the black model I received) with glossy ends. Measuring about 3 1/2''x 2 1/4'' x 1'' it is around the size of a deck of cards (a bit smaller but thicker than the deck I had). I have uploaded a video for you to see. My apologies in advance for the poor quality but you should be able to get a good look at it.
Setting this up couldn't be easier, it is truly the definition of plug and play. Unpack, plug in power cord to unit and wall, and away you go.
What really caught my interest and impressed me, was their so called, "Smart Port Technology". At first glance it sounds like a baseless marketing gimmick that we see all to often. Each port has a dedicated microchip that detects each device's USB pin signals and dynamically adapts the amperage output accordingly, so the device will charge at full speed and you don't need to worry about damaging the device.
This product also comes with an 18 month warranty.
In conclusion,
The device itself is pleasant looking and matches well with the modern feel of my computer area.
I was expecting something large and clunky that would take up a lot of room, but as you can see the device is nice and sleek and really only the size of a deck of cards.
Like other Anker products I own, this is sturdy and well built.
It is also easy to use and comes with a fairly long warranty. I haven't had to deal with a bad product, but I hear Anker customer service is very easy to deal with in case an issue should arise.
As I explained above, the "Smart Port" technology really makes charging a whole fleet of devices a breeze!

Sorry man, but the one you reviewed is not 25W version with smart ports, its 40W version. I reviewed both 25W and 40W here in the forum recently, 40W: http://forum.xda-developers.com/showthread.php?t=2608578
Good video review, but make sure you correct the title to 40W, not 25W (my review here: http://forum.xda-developers.com/showthread.php?t=2436439). Since they are in the same 5-port class, Anker listed it on amazon under the same listing where you click to select 25W or 40W version. Maybe that's where the confusion came from?
Either way, I wouldn't even bother looking into 25W (5A) version with fixed ports when you can get 40W (8A) version with 5 smart ports (up to 2.4A per port to charge even the latest retina iPad).

vectron said:
Sorry man, but the one you reviewed is not 25W version with smart ports, its 40W version. I reviewed both 25W and 40W here in the forum recently, 40W: http://forum.xda-developers.com/showthread.php?t=2608578
Good video review, but make sure you correct the title to 40W, not 25W (my review here: http://forum.xda-developers.com/showthread.php?t=2436439). Since they are in the same 5-port class, Anker listed it on amazon under the same listing where you click to select 25W or 40W version. Maybe that's where the confusion came from?
Either way, I wouldn't even bother looking into 25W (5A) version with fixed ports when you can get 40W (8A) version with 5 smart ports (up to 2.4A per port to charge even the latest retina iPad).
Click to expand...
Click to collapse
Good catch, I just copy pasta the title from amazon.

Any chance you could actually test the output with a 12w ipad? I just got a new anker astro3, and it only charger at 2.1, not a 2.4amp
Easiest way to test it is to download "batterylife"(free) in cydia, or time charging the default charger compared to the anker.
Thank you! It is advertised everywhere as 2.4amp, but it seems like they do not have that feature!

pcharouz said:
Any chance you could actually test the output with a 12w ipad? I just got a new anker astro3, and it only charger at 2.1, not a 2.4amp
Easiest way to test it is to download "batterylife"(free) in cydia, or time charging the default charger compared to the anker.
Thank you! It is advertised everywhere as 2.4amp, but it seems like they do not have that feature!
Click to expand...
Click to collapse
Sorry, I don't have any apple devices. But I remember reading replies to my reviews on AndroidForums (I mirror my reviews in XDA and AF) where someone tested and verified 2nd gen Anker external batteries to charge latest iPad at full speed. I also remember reading comments on Amazon as well. This 40W should be able to do that as well. Are you sure there is no problem with your usb cable? That could be a bottleneck. Or perhaps if you have multiple devices charging, the total current can't exceed the max value so it could current-limit the port.

vectron said:
Sorry, I don't have any apple devices. But I remember reading replies to my reviews on AndroidForums (I mirror my reviews in XDA and AF) where someone tested and verified 2nd gen Anker external batteries to charge latest iPad at full speed. I also remember reading comments on Amazon as well. This 40W should be able to do that as well. Are you sure there is no problem with your usb cable? That could be a bottleneck. Or perhaps if you have multiple devices charging, the total current can't exceed the max value so it could current-limit the port.
Click to expand...
Click to collapse
Yes, many reviews mention 2.4amp charging, but no one actually tests it... This is very frustrating since i have bought it because of this feature.
Here is an email from anker:
"
Dear *****,
Thank you for writing back.
Kindly please be assured it is normal that this external battery charge your iPad at 2.1amp. Feel free to contact us if you have any more questions or concerns, we will be glad to assist you.
Thank you and great day!"

I don't know what to tell you bud. I would have verified it for you gladly, but I don't have iPad 4. I know they (anker) are typically very specific about their spec and offer 18-month warranty and a top notch support.
Don't rely solely on app to tell you about current draw. For example with my Note 2 (or any S4, N3, etc.) you can get a free Galaxy Current app and it always shows 1.8A charging as max while I'm using 2A charger and actually timed the charging to be very close to 2A.
I assume you already timed your charging from a trusted wall charger and the same usb cable used between wall charger and Anker charger on iPad starting from some fixed discharged %? Another test, use one of these gadgets (http://forum.xda-developers.com/showthread.php?t=2451375) which is not necessary accurate because it draws it's own current, but you can compare how much current is drawn from your original apple charger versus anker charger. That charging doctor is great for relative comparison analysis.
Another thing that I read from a few of the people in different forums, iPad 4 with its 2.4A requirement is very particular that it won't even charge from a typical 2A charger because it doesn't draw enough current. So the fact that you are actually able to charge your iPad 4 from anker 40W charger indicates that it provides more than 2A of current.

Testing Results:Charging Current
Hi guys, i thought i should post this up.Below are my results of testing the anker 40W charger with my galaxy note 10.1 (n8000) tablet. Unfortunately Im not receiving full speed charging as promised by Anker.
With the screen turned on,
Anker 40W, 2A charger = 0.7A
Original Samsung 2.1A charger = 1.2A
With the screen turned off (screen was left off for 1min and then turned on to take screenshot)
Anker 40W, 2A charger = 1.2A
Original Samsung 2.1A charger = 1.7A
Anyone getting similar results? Or did i get a bad copy? I've just contacted Anker, and am now waiting for a reply.
----Attached Screenshot----
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Frozster said:
Hi guys, i thought i should post this up.Below are my results of testing the anker 40W charger with my galaxy note 10.1 (n8000) tablet. Unfortunately Im not receiving full speed charging as promised by Anker.
With the screen turned on,
Anker 40W, 2A charger = 0.7A
Original Samsung 2.1A charger = 1.2A
With the screen turned off (screen was left off for 1min and then turned on to take screenshot)
Anker 40W, 2A charger = 1.2A
Original Samsung 2.1A charger = 1.7A
Anyone getting similar results? Or did i get a bad copy? I've just contacted Anker, and am now waiting for a reply.
Click to expand...
Click to collapse
It sounds like a defective unit. I would contact their customer support (look it up on ianker.com) and get a replacement right away. Everything is covered under 18-months warranty.

thank you

You should contact [email protected].
Sent from my SCH-I535 using xda app-developers app

Frozster said:
Hi guys, i thought i should post this up.Below are my results of testing the anker 40W charger with my galaxy note 10.1 (n8000) tablet. Unfortunately Im not receiving full speed charging as promised by Anker.
With the screen turned on,
Anker 40W, 2A charger = 0.7A
Original Samsung 2.1A charger = 1.2A
With the screen turned off (screen was left off for 1min and then turned on to take screenshot)
Anker 40W, 2A charger = 1.2A
Original Samsung 2.1A charger = 1.7A
Anyone getting similar results? Or did i get a bad copy? I've just contacted Anker, and am now waiting for a reply.
----Attached Screenshot----
View attachment 2602683
View attachment 2602684
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Hello. what kind of response the manufacturer?

Review of Aukey Quick Charge 2.0 wall charger (adaptive fast charging) w/pics!!!

This is a review of Aukey Quick Charge 2.0 (Qualcomm certified) wall charger. http://www.amazon.com/dp/B00QEX83LA/ ($16.99), product page: http://www.aukey.com/product/pau28-qualcomm-quick-charge-usb-adapter
This is going to be a quick review since we are talking about a wall charger, though it's not an ordinary one but rather featuring Qualcomm Quick Charge 2.0 technology implemented in our Galaxy Note 4 as part of an adaptive fast charging. I see more of these wall chargers starting to pop up, but want to be sure you guys/gals don't fall for ebay scams and rather go with a trusted brand names that has been around for awhile and offer a solid warranty and tech support. The idea of Quick Charger 2.0 tech is to implement a higher voltage adaptive charging (at 9V or 12V instead of typical 5V) to accelerate charging of your smartphone battery. A number of new phones and tablets can take advantage of this adaptive fast charging already, while this product is also backward compatible with older phones to charge at 5V. Furthermore, you have to keep in mind that max current rating doesn't mean that your older phone will be drawing more current, it shouldn't sink more than it's maximum current rating. Therefore this particular charger from Aukey is universal to work with newer phones and also backward compatible with older ones, even those that can't take advantage of 2A charging.
The product itself arrived in a small environmentally safe box with just a charger and user manual. It would have been good if they would include usb to micro-usb cable, but I guess Aukey assumed that we already have plenty of those laying around. Just please keep in mind, for a higher voltage/current fast charging make sure to use a higher quality thicker usb cables. Thinner "data" usb cable are not intended for high current, and as a matter of fact can current-limit charge resulting in overheating.
Overall, this Aukey Quick Charger 2.0 performed exactly the same as Samsung Galaxy Note 4 original fast charger, which makes it a great replacement or a second set to keep in your office or when traveling. The build quality is good, feels solid in my hand, didn't overheat - no complaints here!
Here are the pictures.
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Aukey Quick Charger 2.0 between a regular and adaptive fast charge (Note 4) Samsung chargers
With a regular Sammy charger
With Note 4 Sammy fast charger
With Aukey fast charger

vectron said:
This is a review of Aukey Quick Charge 2.0 (Qualcomm certified) wall charger. http://www.amazon.com/dp/B00QEX83LA/ ($16.99), product page: http://www.aukey.com/product/pau28-qualcomm-quick-charge-usb-adapter
This is going to be a quick review since we are talking about a wall charger, though it's not an ordinary one but rather featuring Qualcomm Quick Charge 2.0 technology implemented in our Galaxy Note 4 as part of an adaptive fast charging. I see more of these wall chargers starting to pop up, but want to be sure you guys/gals don't fall for ebay scams and rather go with a trusted brand names that has been around for awhile and offer a solid warranty and tech support. The idea of Quick Charger 2.0 tech is to implement a higher voltage adaptive charging (at 9V or 12V instead of typical 5V) to accelerate charging of your smartphone battery. A number of new phones and tablets can take advantage of this adaptive fast charging already, while this product is also backward compatible with older phones to charge at 5V. Furthermore, you have to keep in mind that max current rating doesn't mean that your older phone will be drawing more current, it shouldn't sink more than it's maximum current rating. Therefore this particular charger from Aukey is universal to work with newer phones and also backward compatible with older ones, even those that can't take advantage of 2A charging.
The product itself arrived in a small environmentally safe box with just a charger and user manual. It would have been good if they would include usb to micro-usb cable, but I guess Aukey assumed that we already have plenty of those laying around. Just please keep in mind, for a higher voltage/current fast charging make sure to use a higher quality thicker usb cables. Thinner "data" usb cable are not intended for high current, and as a matter of fact can current-limit charge resulting in overheating.
Overall, this Aukey Quick Charger 2.0 performed exactly the same as Samsung Galaxy Note 4 original fast charger, which makes it a great replacement or a second set to keep in your office or when traveling. The build quality is good, feels solid in my hand, didn't overheat - no complaints here!
Here are the pictures.
Aukey Quick Charger 2.0 between a regular and adaptive fast charge (Note 4) Samsung chargers
With a regular Sammy charger
With Note 4 Sammy fast charger
With Aukey fast charger
Click to expand...
Click to collapse
Thanks a lot for the review. I also bought two along with a pack of 4 usb cables from Aukey for 32 euros and its working great. I would never pay 35 euros for a single charger when all quickcharge 2.0 certified chargers work the same

Vectron, another great review. Thank You.
What glass screen protector are you currently using?

What a great review. even though there is no cable included

Priced dropped to $14.99.

The Samsung fast charger looks sleeker

It does but it costs 3 times more

Badelhas said:
It does but it costs 3 times more
Click to expand...
Click to collapse
I bought a few on amazon for around 16 bucks

Qualcomm quick charging 2, does that mean that it only works for the snapdragon version? Or would it work on the exynos version (N910C) too?

NICE!

svenM said:
Qualcomm quick charging 2, does that mean that it only works for the snapdragon version? Or would it work on the exynos version (N910C) too?
Click to expand...
Click to collapse
it will "work" in the same way any charger for the exynos will, as a 5.3V 2A charger. It will not Quick charge. so you are probably looking at ~1:45-2hrs to charge vs ~1:15-1:30 for a full charge on the stock battery.
Quick charge doesn't really do anything for the extended batteries since there is a limitation (firmware maybe) of 3320 MAH after that the charger stops charging. So quick charging has to be disabled to charge the larger batteries. Quick charging worked perfectly with an anker 6400 battery that I now have. Apparently this is a zerolemon limitation
I have this charger as well. I do think it charges slightly faster that the stock charger although that could be wishful thinking on my part. There really is no way to compare them since they both charge so quickly (normally right around an hour from 20%-full) so a minute or two could be simply what the phone is doing in the background.
I also have the tenergy, anker, verizon quick chargers and with all of them the charge is very fast.

How hot does it get? I had a 2A charger that sometimes got too hot to touch... at some point it died.

kadajawi said:
How hot does it get? I had a 2A charger that sometimes got too hot to touch... at some point it died.
Click to expand...
Click to collapse
Mine dosent. The phone does a little, especially during the first half of the battery

I just bought a 5-port version (with 4 Ai ports and 1 QuickCharge port) http://www.amazon.com/Qualcomm-Certified-Aukey-Charging-Included/dp/B00UV4HCL0
OP's review covered the QuickCharge port. How about the other 4 ports? Does the Ai really work?
Thanks!

Hmm... I've received mine today with one USB port, but it's strange that micro usb don't go all the way to my Note 4 F version, and don't seem to charge fast as well? When Samsung charger is plug in there is a notification "Fast charger connected" but with Aukey there is no such information. Is it possible that I've bought fake/faulty one? When plugged my Note 4 to Aukey charger I didn't see any changes of battery percentage (when plug in was 8%) after about 5min was the same with Samsung went from 8% to about 11%. Any ideas?

I have the aukey one with three USB ports. When I plug on the fast charge, the screen does say fast charge.
Sent from my SM-N910F using Tapatalk

So in my case I've got fake one or faulty one. I'll post pictures how my charger look like.
Sent from my SM-N910F using Tapatalk

Sent from my SM-N910F using Tapatalk

RAVPower 20100mAh Quick Charge 3.0 Power Bank – Unboxing & Review

Introduction​
RAVPower has launched an impressive concentrate of portable power that features Quick Charge 3.0, the latest technology available from Qualcomm to charge QC 3.0 compatible devices much faster than using conventional charging technology, and even an USB Type-C port, that is becoming a standard nowadays with latest devices.
This is the RAVPower Turbo+ QC 3.0 20100mAh Battery Pack.
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This is the updated version of the Power Bank from RAVPower with QC 3.0 (Turbo+) support instead of the previous QC 2.0 (Turbo, without the "+" character). Luckily I had the possibility to compare both versions, so I’ll show you both.
Unboxing
Packaging (eco-friendly) comes with two Slim Micro-USB cables (~26cm & ~66cm), a Protective Pouch, a small Multilanguage Quick Start Guide, a Warranty Card and the Power Bank (of course).
Both versions come with the same accessories, only packaging is different.
I must admit that this Power Bank impressed me because it seems bulky, but in reality it is pretty lightweight and small enough to be handled easily in your bag without sacrifying too much space. I like its clean design, with rounded borders and opaque painting.
Don’t forget that this is a 20100mAh Battery Pack, so if you are going to buy it so must consider that it isn’t as portable as less powerful ones. (Batteries technology is improving day-by-day though so in the future we might be able to get smaller – but not less powerful – batteries)
It weighs 376g, its chassis is made of Plastic (feels strong though) and on the front side there are 4 Blue LEDs used to check battery remaining charge with a power button. The power button is only used to check battery remaining charge so you don’t have to press it to turn on the power bank. It turns on automatically when you connect a device whatever port you are using.
It comes with multiple USB ports:
- 1x Micro-USB port that support also Quick Charge
- 1x USB Type-C port that can be used in both ways (Input and Output)
- 2x Full-Size USB Ports (1x with Quick Charge support)​
As regards its performance, I am able to charge my Galaxy S4 (GT-I9500, Exynos Variant) at the same speed as with the Original Samsung Charger (with 2.0A output) without any voltage stability issue. (I have tested both USB Ports). I have also tried to charge a Galaxy S4 (GT-I9505, Qualcomm Variant) that comes with Quick Charge 1.0 technology support and it managed to charge the device in more or less 45 minutes. Also, I have tried the USB Type-C port with a Nexus 6P (luckily i have a friend at University that has it), and it does seem to work as good as with the Original Nexus Charger.
Battery Life​
Battery Life is simply amazing, it is hard to discharge the power bank completely in less than 1 week, especially if you need to charge only one smartphone that doesn’t come with a large battery. There is always some juice left even if there is only one LED lighted up (so it means less than 25% of available battery). When the battery level is extremely low, the LED starts to blink but I managed to charge a Sony PSVita (2210 mAh) nearly completely after the LED started to blink so this is pretty good.
This is a GIF that i made, unfortunately XDA doesn't support GIF playback so i had to convert and upload it on YouTube.
Efficiency​
I made some tests using an USB Tester with the included USB Cable (short variant), as you can see it is able to provide 1.9A without major issues (maybe a bit low voltage, but using another cable it is higher). I don’t have a 3A resistor so I won’t be able to show you a test under higher load, but I have stressed both USB ports at the same time and I can confirm you that it is able to handle more than 3A load without any issue at all.
Charging
I’m using a RAVPower Turbo+ QC 3.0 Charger to charge the battery. (Best Combo)
I left the battery connected to the charger at 23:30, and when I got up (08:15) the battery was fully charged and cold, so I can say that it took more or less 8 hours (probably 7 hours, because both battery & charger were cold) to charge completely. Remember that even if Qualcomm Quick Charge makes the whole charging process faster, it is also temperature controlled so if battery gets hot current output gets reduced to cool down the battery without causing damage.
Power Output seems to be extremely efficient here, voltage is much higher at 2A than using the Battery.
It is a bit heavy, but extremely powerful and feels pretty well made.
This is the best charger i have ever tried. I can recommend it even if you have to charge other kind of devices.
Conclusions​
This battery is one of the most complete available on the market, so if you need a full-optional and powerful Power Bank, then this is the right choice. I know, it isn’t easy to carry everywhere because it doesn’t fit in your pocket, so this is something useful if you carry a bag with you or if you have anything else where to fit the battery, but actually no other power banks offer so many USB ports, Quick Charge 3.0 support and Quality Battery Cells inside.
If you don’t need Quick Charge 3.0 support, I recommend you to get the QC 2.0 version to save some money. Also, i recommend you to get also the RAVPower Turbo+ QC 3.0 Charger (or Turbo QC 2.0) for best results.
I’ll add an additional review about reliability in 6 months more or less to let you know if I find any kind of issue during full-term usage.
Rating: 8.8
Packaging and Accessories: 8
Design and Materials: 9.5
Performance and Efficiency: 8
Battery Life: 10
Price: 8.5 (based on Amazon.it price)
You can find full-res images (I know, Quality isn't excellent) here: http://imgur.com/a/vZwQN​

Reserved

Alberto96 said:
I left the battery connected to the charger at 23:30, and when I got up (08:15) the battery was fully charged and cold, so I can say that it took more or less 8 hours (probably 7 hours, because both battery & charger were cold) to charge completely. Remember that even if Qualcomm Quick Charge makes the whole charging process faster, it is also temperature controlled so if battery gets hot current output gets reduced to cool down the battery without causing damage.
Click to expand...
Click to collapse
20100 mah = 20100x3.7= 74Watt hours
If it was fully charged in 7 hours, thats around 12W going into the power bank. This is slow.
I would have expected it to charge full within 5 hours which would be at least 15W or more going in.
The charger i have and what i find curious about it is if you look at the specs they are actually QC2.But it says QC3.0/2.0 on the charging port. Not on qualcom's list of certified QC3 chargers.
if you look at the battery specs they are QC3 and is on qualcom's list as certified QC3.
Would be good if you can get a double digit meter so we can see how much power that charger is actually putting into the pack.
Also have you been able to test with a QC3 phone and measure how long it took.

One Twelve said:
20100 mah = 20100x3.7= 74Watt hours
If it was fully charged in 7 hours, thats around 12W going into the power bank. This is slow.
I would have expected it to charge full within 5 hours which would be at least 15W or more going in.
The charger i have and what i find curious about it is if you look at the specs they are actually QC2.But it says QC3.0/2.0 on the charging port. Not on qualcom's list of certified QC3 chargers.
if you look at the battery specs they are QC3 and is on qualcom's list as certified QC3.
Would be good if you can get a double digit meter so we can see how much power that charger is actually putting into the pack.
Also have you been able to test with a QC3 phone and measure how long it took.
Click to expand...
Click to collapse
It is something that i'll do as soon as possible.
Also, remember that you can't completely base your opinion on technical specs, because there are many other factors such as Temperature that might increase charging times.

Alberto96 said:
It is something that i'll do as soon as possible.
Also, remember that you can't completely base your opinion on technical specs, because there are many other factors such as Temperature that might decrease charging times.
Click to expand...
Click to collapse
Cool, quote or @ me when you do.
If you see here the times, with qc2 charger its 5.5 hrs.
With QC3 it should be better. Why your ravpower charger cannot do it ?
Would also request you to upgrade your usb meter and re-test with this power bank and charger.
https://www.youtube.com/watch?v=-BkM8Hf5lmA
I do not speak Italian but i understood he is saying that meter works with xiaomi mi5 and qc3
PS: best of luck to your Azzuri tonight

Real Battery Capacity after 3 Months of Usage. Consider that the battery wasn't completely dead, with flashing low-battery leds, this might be a bit lower.
I haven't measured battery charging times this time because i had to use the Standard 5V charger in order to get the correct mAh value, next recharge will be made using the QC Charger.

Thanks for your post

Alberto96 said:
Real Battery Capacity after 3 Months of Usage. Consider that the battery wasn't completely dead, with flashing low-battery leds, this might be a bit lower.
I haven't measured battery charging times this time because i had to use the Standard 5V charger in order to get the correct mAh value, next recharge will be made using the QC Charger.
Click to expand...
Click to collapse
Looks pretty close to stated capacity.
Can your power meter show two digits? Charge times is not so clear.

Cool review. It is useful . Have you found it is similar to Anker core 20100?

iLsyyyyyyy said:
Cool review. It is useful . Have you found it is similar to Anker core 20100?
Click to expand...
Click to collapse
I did not have the chance to review the Anker one too.

Alberto96 said:
I did not have the chance to review the Anker one too.
Click to expand...
Click to collapse
maybe you can look at this one, I bought it recently, it is 13400mah. Really like the durable design

[Review] Choetech QC 3.0 10400 mAh battery pack

Disclaimer: I was sent these items at a heavy discount in exchange for my fair & honest review
Choetech 10400 QC 3.0 Enabled Battery Pack:
Overview
Choetech took their old QC 2.0 battery and made some improvements to it while also adding QC 3.0.
Ports/Charging:
There are a variety of ports offered on this battery which serve different functions. First the battery can be charged on of two ways: you can either use a microUSB cable (like the one included in the box), or a lightning cable if you happen to also have an Apple device. Both cables will allow the battery to be charged at 5V/2.4A; however, I found the battery charges via QC 2.0. I tested it via my multimeter which show the battery drawing ~9V/1.8A which is closer to 16.2 W of power. I’m not sure why the battery doesn’t list this as an input because it certainly takes all of the power.
On the output side you are given the option of using 2 USB-A standard ports. One of these ports will charge at 5V/1A which is also known as QC 1.0, while the second one charges via QC 3.0. The voltage range is variable as is the current. The ranges for the QC 3.0 port are: 5V/3A (15W), 9V/2A (18W), 12V 1.5A (15W). All of these outputs are consistent with the QC 3.0 standard which allows the voltage to step in smaller increments thus reducing the overall heat and increasing charging efficiency.
Design/Build Quality:
This battery has a very nice, solid aluminum housing that really makes it feel nice. The top/bottom edges are chamfered, while the sides are black anodized aluminum. This is the perfect pairing for the HTC 10 given its nice chamfered edge, and similar aluminum construction. I have another Choetech battery pack that is equally well made and feels like a tank. I don’t foresee this battery buckling under normal use, or even some drops given how well made it feels.
To use the battery, you first need to hit the power button that in turn lights up a series of 4 bright LED’s. These LED’s will indicate the current charge left on the battery while also looking great. When you are charging the battery pack the LED indicating its current level of charge will blink as an indication of how much power is currently store in the battery.
What’s in the Box:/B]
-Choetech 10400mAh power bank
-microUSB cable
-Documentation
Charging Multimeter test:
Charging Ports:
Here is breakdown of the voltages/rates the battery can be charged at:
Output: 5V/1A (5W)
QC 3.0 Port: 5V/3A (15W), 9V/2A (18W), 12V/1.25A (15W) [/SIZE]
Battery I/O Rating Pictures
Given the battery’s two output ports, you will be able to charge two devices simultaneously, although I would only use it to charge one at a time personally.
Overall This is a great small QC 3.0 enabled battery pack that will keep everything working on the go. I own battery packs from EasyACC, Choetech, Aukey, and Anker, but this one is still one of my favorites for what it offers. I plan on using this battery to charge my HTC 10 while at school, and on the go in general.

Nice review, I've done a similar thing on amazon, also found the charger to be great. I did a quick charging test and it was averaging around 1500mA, whereas the htc one main plugs charger was 1600mA, so to charge that close to a main plugs socket is great. Specially for a portable charger where you want it charging fast!

Phil750123 said:
Nice review, I've done a similar thing on amazon, also found the charger to be great. I did a quick charging test and it was averaging around 1500mA, whereas the htc one main plugs charger was 1600mA, so to charge that close to a main plugs socket is great. Specially for a portable charger where you want it charging fast!
Click to expand...
Click to collapse
This battery will output the rated (18W) if the phone can handle that much current. I posted a picture in my review using a multimeter to measure the power (16.8W at the moment I took the picture). I don't know what the phones peak input current is, but I know it's higher than than S7 Edges 15.03W input, and Neuxs 6P's 15W. I've seen similar ranges of 15-17W using the stock HTC charger which means this battery is outputting the proper current for the phone to charge as fast as it possible can via the QC 3.0 port.

How many full charges can it deliver to the phone?

Lurien said:
How many full charges can it deliver to the phone?
Click to expand...
Click to collapse
Just over 2 from my experience, but that's 0 to 100 so not bad.
It is damn fast though for a portable charger. For example I've gone from 33% to 100% in a little over an hour

Phil750123 said:
Just over 2 from my experience, but that's 0 to 100 so not bad.
It is damn fast though for a portable charger. For example I've gone from 33% to 100% in a little over an hour
Click to expand...
Click to collapse
Not bad at all.. that's like having 2 spare batteries and change... I'm considering getting this. Thanks for the feedback.

Lurien said:
How many full charges can it deliver to the phone?
Click to expand...
Click to collapse
Phil750123 said:
Just over 2 from my experience, but that's 0 to 100 so not bad.
It is damn fast though for a portable charger. For example I've gone from 33% to 100% in a little over an hour
Click to expand...
Click to collapse
Lurien said:
Not bad at all.. that's like having 2 spare batteries and change... I'm considering getting this. Thanks for the feedback.
Click to expand...
Click to collapse
If you account for the efficiency external batteries have (not very high due to heat losses) the 2 full charges is about right in my experience.

Pilz said:
If you account for the efficiency external batteries have (not very high due to heat losses) the 2 full charges is about right in my experience.
Click to expand...
Click to collapse
Yup when looking at mah of portable batteries I always take off about 30%. Assuming it's good quality that about what you get. I. E in this case 10400mah you get about 7000mah actually usable. Obviously that goes down with time too.

Phil750123 said:
Yup when looking at mah of portable batteries I always take off about 30%. Assuming it's good quality that about what you get. I. E in this case 10400mah you get about 7000mah actually usable. Obviously that goes down with time too.
Click to expand...
Click to collapse
Plus when quick charging you could lose some of the ~7000 you might expect, regardless of that I still find it to work as well as my other 1000mAh battery packs.

Things I miss in your review:
How much does it cost, and how are competitive products placed?
How long does it take to charge the Battery with a QC2.0 Charger?
How much is really inside?
You'd have to use a constant 1.5A load and check How long it lasts... ?
Except from that. Nice review Thanks.

Choetech has stated they're using Samsung Li-Ion cells so they're likely these. I'll crack open mine when I receive it, haven't ordered it yet.
http://gamma.spb.ru/media/pdf/liion-lipolymer-lifepo4-akkumulyatory/ICR18650-26H.pdf
http://lygte-info.dk/review/batteries2012/Samsung ICR18650-26H 2600mAh (Pink) UK.html
-26H is the successor to -26F
http://data.oomipood.ee/kasutusjuhend//ICR18650-26FM.pdf
http://dampfakkus.de/akkutest.php?id=120
http://lygte-info.dk/review/batteries2012/Samsung ICR18650-26F 2600mAh (Pink) UK.html
I personally have these -26H's inside my 4x18650 5V2A power bank case.
They're great cells for indoor use and low current draw (per cell) use.
They'll happily dump over 90% of the specified Whours even at a full 5A discharge. (which is 2600*3.63/1000=9.44Wh)
At a more sane discharge current of 1A/2A they'll be able to provide ~ 99/96% of the specified Whours.
So how much is really inside? Spec sheet says 10200mAh's assuming 0.2C discharge and 2.75V cut-off.
In practice? ~10200-10600mAh's depending on the discharge current. (this is of course fresh cells, capacity will drop over time)
This of course does not take into account the power loss which occurs when you boost the voltage up.
Assuming a nice, above average 90% efficiency inside the power bank you'd be looking at ~9200mAh's.
Then taking into account the voltage stepdown happening inside the phone, let's assume 90% efficiency again and we'd be looking at ~8150mAh's.
Aaand then taking into account the cable loss (- connector losses), let's assume you have an average 26AWG 1 meter cable and you transfer 18W of power at 9V2A, loss is 6%.
We're down to ~7550mAh's.
Saying it can charge a 3000mAh battery twice plays nice with that calculation.
One thing to note though and like I said, great for indoor use but if you look at the spec sheet, you can see the capacity vs temperature table.
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tl;dr if you wish to extract every little ounce of power you can from these cells (or this power bank)
if you go hiking in really cold weather, make sure it stays close to room temp (25C), so not in the outermost compartment of your backpack but neither touching your body which could then warm it up higher than room temp - no es bueno.
if it's a really warm, sunny summer day and you go have a beer outside sitting in the porch, don't leave the power bank in direct sunlight, place it in shade instead
This is pretty much business as usual and has to do with the design of the cell and cathode material used.
Cells [like the -26H] intended for laptops, power banks etc. are going to have different discharge characteristics compared to cells [like INR18650-25R] intended for electric vehicles, power tools and so on.
So it's good that the power bank has an aluminium chassis. It's going to be able to dump some of that heat generated by the boost circuitry in to the air and so on and so forth.
The cells themselves won't really heat up that much. You know, there's 4 of them in there and they are in parallel = current load is being split pretty much equally.
At 3V under load which is pretty close to fully discharged (cut-off = ~2.75V), if the power bank circuitry is prodiving 18 watts of power and drawing 21.6 watts (18+20%) from the 1S4P battery pack because of inefficiencies, it would still be just 7.2A of current total and 1.8A per cell.
Well within the capabilities of these Samsung cells and so low power wise per cell they're not heating up much.

I recently added this one to my arsenal and now prefer it over others I have. I can charge it off anyone's charger i'm with on longer trips so cable management is nill. Love the fact you can tell it's in qc mode versus normal charge mode.

Just recently got this power bank for my hTc 10 - as from my experience 10Ah looks impressive on the computer screen - but in real life we actually need 20Ah backup battery .. ?
Spoiler
And it states that output is 12V x 1.5A what actually implies 18W... ?
Sent from quite brutal hTc 10 ..

dottat said:
I recently added this one to my arsenal and now prefer it over others I have. I can charge it off anyone's charger i'm with on longer trips so cable management is nill.
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Well, not exactly nil, right? You can charge from micro-usb or from lightning, which is a great addition, but you can't actually charge from the cable you're most likely to be carrying with your HTC 10, which is a USB C cable, right? I looked at the description on Amazon, and thought that was an interesting omission.

Andyw2100 said:
Well, not exactly nil, right? You can charge from micro-usb or from lightning, which is a great addition, but you can't actually charge from the cable you're most likely to be carrying with your HTC 10, which is a USB C cable, right? I looked at the description on Amazon, and thought that was an interesting omission.
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It can be charged via a microusb cable that is included. Since they are as common as can be I don't see how that would be an issue. I have piles of them laying around, spare one in my car etc.. I know it's not ideal to have more than one type of cable, but I use them to charge my S7 Edge, Bose QC 20's , LG Tone Platinum's etc.. that's why I personally have them just about everywhere. I also have a time of Type-C, C-C/A-C cables because of my Nexus 6P. Ideally I would like 4 type c poets for in/out but no one makes anything close yet.

Pilz said:
It can be charged via a microusb cable that is included. Since they are as common as can be I don't see how that would be an issue. I have piles of them laying around, spare one in my car etc.. I know it's not ideal to have more than one type of cable, but I use them to charge my S7 Edge, Bose QC 20's , LG Tone Platinum's etc.. that's why I personally have them just about everywhere. I also have a time of Type-C, C-C/A-C cables because of my Nexus 6P. Ideally I would like 4 type c poets for in/out but no one makes anything close yet.
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I never suggested it would be hard to find a cable to charge the battery pack.
But dottat wrote that cable management issues were nil, so I was merely pointing out that for those of us with HTC 10s that really isn't quite the case, since if we want to travel with a single cable, the single cable we are going to travel with -- a USB C cable -- can't charge the battery. This means bringing two cables, at a minimum.
This was not a huge complaint or indictment of the product. I was just making a point. The product would be even better if it could charge via a USB C cable.

Andyw2100 said:
I never suggested it would be hard to find a cable to charge the battery pack.
But dotat wrote that cable management issues were nil, so I was merely pointing out that for those of us with HTC 10s that really isn't quite the case, since if we want to travel with a single cable, the single cable we are going to travel with -- a USB C cable -- can't charge the battery. This means bringing two cables, at a minimum.
This was not a huge complaint or indictment of the product. I was just making a point. The product would be even better if it could charge via a USB C cable.
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I completely agree, unfortunately there are only a handful of battery packs that support QC 3.0 and even fewer that offer Type-C (if any yet) on top of that. The interesting part is their QC 2.0 version has a Type-C port to charge the battery along side the microusb. I'm not sure why they changed that (maybe to appeal to a larger crowd), but it's odd nonetheless. I can post a picture of it later today since its 0103 right now so the lighting wouldn't be ideal to see it.

Andyw2100 said:
...dottat wrote that cable management issues were nil, so I was merely pointing out that for those of us with HTC 10s that really isn't quite the case, since if we want to travel with a single cable, the single cable we are going to travel with -- a USB C cable -- can't charge the battery. This means bringing two cables, at a minimum.
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But within a large company someone is definitely with iPhone - what somehow suggests carrying one more cable.. ?
I opted to carry my original hTc 10 Type C cable and a small interface which converts Type C into the lightning connector.. ?
Sent from quite brutal hTc 10 ..

jauhien said:
But within a large company someone is definitely with iPhone - what somehow suggests carrying one more cable.. ?
I opted to carry my original hTc 10 Type C cable and a small interface which converts Type C into the lightning connector.. ?
Sent from quite brutal hTc 10 ..
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They make one that charges via Type-C as I mentioned earlier; however, it uses QC 2.0 as opposed to QC 3.0

Has anyone compared this Choetech 10400 QC3 (currently unavailable on Amazon) with the Anker 20000 QC3? Pros? Cons?