[REVIEW] Coocheer 40W 5-Port Desktop Wall USB Super Charger with Smart Charging & Surge Protector
Disclaimer: I was provided this item free of charge specifically to review without any influence.
OVERVIEW:
After being misled by an early version Anker 5 Port charger (reviewed here) and reviews by others, I was a little apprehensive about this Coocheer 5 Port “Super Charger” CH-072, partly because of its limited brand recognition and also by the poorly written, somewhat vague English product descriptions online which follows into the literature that comes with the package.
This Coocheer charger did surprise me as it appears to charge everything I own, especially my Logitech Harmony 700 remote and my Hp Touchpad modified for Android Kit-Kat/CM11 (the original Anker unit had problems with them). Although I don’t have any Apple devices to try with it, I’m confident it would charge those as well.
According to the literature it only has 2 ports with “Smart Charging” (the 2 higher output Super Charger ports) to determine what device type is attached, but all my android devices charged at the full speed (AC Charging) of each port which is good and means each device was able to get the max output from each port (ports 1-3 = 1.0A Max and “Super Charger” Ports 4&5 = 2.4A Max). Perhaps the “Smart Charging” feature is actually on all 5 ports, but I can’t verify it. The Coocheer charger also worked with my Nexus 5 Qi Charge base and my LG G4’s extra battery charging cradle.
FINAL THOUGHTS:
The literature indicates some downsides such as the limited number of “Smart” ports to determine the device plugged into it. Why all 5 ports don’t officially have this feature is beyond me (but it might) and it would be nice if each port was capable of the same max output rating (like some other brands). Another downside from the booklet says that the ports may get ‘confused’ if switching from a Samsung to Apple to Android device etc and may need a power reset by pulling the plug. If that is true, it would be much easier to have added a power switch similar to Coocheer’s Desktop Charging Station which looks like it has a nice slot for holding your phone plus 2 extra outlets. I would also like to see a Qualcomm Quick Charge 2.0 Port on some of these multi-port chargers, but that is still relatively new technology.
Overall I am pleased with Coocheer’s 5 port Super Charger. It doesn’t have every feature but it gets the job done, charges all my devices and cleans up the clutter of outlet strips and wall chargers that were cluttering up my end table.
EXTRA ‘TECHY’ STUFF:
If you plug ANY android device into a standard charger/port designed only for an "Apple" product (or a PC’s USB port), that port may only charge the android device at a measly 0.5 amps (500ma) "USB Charging" vs. a charger/port designed for an "Android" product at max charge rate for the port/device (ie 1.0+ amps) "AC Charging".
See SETTINGS - BATTERY (or SETTINGS - ABOUT PHONE - STATUS - BATTERY) to verify for yourself while plugged in with a stock device/kernel.
Android devices have 4 charging states:
1) "AC Charging" (i.e. your typical android wall charger, originally referred to as "Fast Charge")
Data pins are directly shorted together in the charger to tell the device what it should do. No data communication is
possible to the device. It will charge at the maximum rate of either the charger or device, whichever is lower.
2) "USB Charging" (i.e. plugged into your pc's port)
Data pins are NOT shorted ('open') and data communication is still possible with the device.
3) "Charging Wireless"
(i.e. Nexus 5 on 'Qi' charger)
4) “Fast Charging” (Qualcomm Quick Charge 2.0)
(not sure about this as I don’t have a charger that supports it yet with my LG G4)
This looks very interesting, I am just curious if anyone has seen usb cables tied on a bunch/group of 5 that look nice?
ljesh said:
This looks very interesting, I am just curious if anyone has seen usb cables tied on a bunch/group of 5 that look nice?
Click to expand...
Click to collapse
Yes, you look for a charge 'caddy' you like to put it in....
Organize It All Cardinal Recharge Station https://www.amazon.com/dp/B00EQMPZJO/ref=cm_sw_r_awd_Duo4vbWBZY2G8
We actual found a Black one somewhere but I can't find the link yet.
Sent from my LG G4 on Tapatalk.
Related
I picked up one of these chargers:
http://www.macally.com/EN/Product/ArticleShow.asp?ArticleID=326
which, in principle, should charge the Tab. It does charge it but it also does some strange things while plugged in:
1. Starts MTP USB mode
2. Completely messes up digitizer - I've installed TouchScreenTune and in the test area I can see when I touch, sometimes the perceived touch seems to rapidly cross the entire vertical area and in regular use it will activate the status bar when I touch anywhere.
I exchanged it for this one:
http://www.macally.com/EN/Product/ipod4show.asp?ArticleID=391
It doesn't have as high a wattage output but still higher than a standard USB charger so should charge faster.
I still get:
1. MTP USB mode
2. not quite as messed up digitizer - seems to be okay in normal use but when I test it in TouchScreenTune I can see that the perceived touch is very jittery. It's now jittery only to a small amount of error so it's usable, but something is going on.
I've also found the tablet completely non-responsive to touch a couple of times today (not plugged in) and eventually it comes back but behaves very slowly until I reboot. I don't know if this has anything to do with the charger or just a coincidence.
I'm concerned with the behaviour of the digitizer that these chargers are doing something bad to my tablet. These behaviours don't occur when I use the official charger. I was hoping to get something with multiple charging ports so I have less to carry and plug in when I travel.
Should I be concerned about use this charger? If so, other than the official Samsung charger, does anyone know of a compatible multi-port charger?
Thanks!
You might be looking at different effects caused by different things.
1) There are two different kinds of USB cables for the Galaxy Tab 10.1: a data cable and a charger cable. These are slightly different. Using a data cable will still allow the Tab to charge, but probably slower. But this can cause the MTP USB mode to kick in (but this also depends on the charger)
2) Some chargers go way above the normal 5 Volt. With most devices that is not a very big problem. But capacitive touch screens are very sensitive to that. That's most probably what you notive. I see the same if I use some cheaper chargers.
3) I don't think your touch screen is damaged by the use of these chargers. If that would be the case, it would probably malfunction all of the time and not occasionally. Chances are a lot higher that you installed some new software or widget that is behaving badly.
USB chargers designed for apple devices in principle will not supply more then 0.5A to non-apple devices.
Apple uses a special technique to signal to the USB charger to supply more power, while non-apple devices uses a different technique. And unfortunately all the charger manufacturers only seem to consider Apple.
So all those chargers proclaiming 2.1A that you can find on Amazon or eBay are all designed for Apple devices. And don't believe when it says on Amazon or eBay that Android devices are supported. Read the reviews and you will typically find someone with charging problems with a non-apple device.
USB chargers are basically all the same except for the amperage that they put out. The stock GTab will not charge very well unless the amperage is around 2A. If you root, you can install a tweak that allows the device to charge with any amperage but with the typical .5A charger it will take a lot longer than with a 2A version.
I use the charging pucks for my iPhone and my wife's iPad interchangeably for those devices and my GTab. They all work fine. The iPad puck puts out about 2A and is about the same as the one that ships with the GTab. Since the GTab version is on my desk, I also use it to charge a bunch of other USB devices such as my hands free car speaker and some wireless headphones. I just plug the appropriate cable into the puck. I have not experienced any problems and suspect that I could use my wife's iPad puck the same way. (I have not yet tried this).
I just ordered a couple dual 2A USB car chargers that allow two USB cables to be plugged in, each getting 2.1A. From what I have been able to discover, these devices will charge just about anything as long as the charging cable has a standard USB connector. They come from China on eBay for less than $3 ea.
I will follow up this post with a review when they arrive.
Bob
USB chargers are not all the same.
"Modern" Adapters that implement the USB Battery Charging Spec, short the middle two data wires (D- and D+), the device can use that to detect that it can draw up to 1.5A (instead of the 0.5A that you get from a regular port).
Apple instead using a different (non-standard) scheme where they communicate to the power supply using voltages, and where different voltages represent different Amperage (I don't know the exact details).
So power supplies sold for Apple devices, as far as I have seen, do not short the data wires and as such a non-Apple device will not draw more then 0.5A
*edit*
Just to add to this, because apple devices communicates with the charger over the two data wires using voltages, while devices that implement the USB Battery Charging Spec require the data lines to be shorted, the two implementations are incompatible.
What you could probably do, is crack open a 2A apple compatible charger and just short the D- and D+ and have a charger that will charge non-apple devices up to 1.5A. And it should also be possible to put a switch on the charger to switch between Standard and Apple charging mode. But if you mess up, don't come and complain to me!
Here is a nice video on how the apple charging works for the iPhone on youtube. But unfortunately this crap forum software won't allow me to post outside links.
Just do a google search for "reverse engineering apple charger"
I made some usb adapters that plug between any usb port and galaxy tab 7.0 plus usb
I made some usb adapters that plug between any usb port and your samsung galaxy tab 7.0 plus usb connector that allows charging from any usb port. I think it's the same for any galaxy tablet/phone. This way you can charge from any pc, or generic wall charger, any car charger, etc. If you're interested in one let me know. I can list them on ebay or some other site.
See pictures, nothing fancy but they work perfect with any charger and or usb port
Pic 1 is adapter
Pic 2 is adapter plugged into portable 12000mAh battery charger made for apple products
Pic 3 I added another adapter I made in between to measure amperage
Pic 4 is screen shot showing "AC" not "USB" and little batter icon without RED "X"
Tronsmart multi-port charger(s) review
Disclaimer: I was sent these items in exchange for an unbiased review.
Tronsmart 10A/90W 5 Port Quick Charging Hub
Tronsmart 5 Port Titan
Overview
There was a point in time earlier this year where I had 5 phones, and a tablet which all needed charging. When I would go to school, or travel it was always a hassle to bring multiple chargers, and cables whenever I decided to charge more than 1 device at a time. My wife would also need to charge her phone which only added to the number of devices that needed to be charger. I no longer have an excessive number of phones, or a tablet, but this Tronsmart 5 port 90W charger would have made things much easier.
The charger itself is rather large, but it is meant to sit on a desk/nightstand so you can plug in all of your devices and charge them quick if they support QC 2.0 or even 5V/2.4A (as iphones, and older android devices do). Each port can supply the same amount of power even when you have 5 QC 2.0 devices side-by-side on charging; needless to say this charger can really deliver the power needed without carrying around multiple separate chargers. Tronsmart claims this charger has the highest overall output of any 5 port model, and I agree with them.
Update [1/7] Tronsmart stated they are going to include a longer power cable in the future (sometime soon). I will also be adding more to the OP in the next 1-2 days
Update [3/15] I was sent a longer power cable that works great. It is now 5[ft] long which is a big improvement over their previous 3[ft] cable. I can now position the Titan better on my desk without having to rearrange things like I did in the past.
What’s in the box
The charger includes a power cable and some informational cards inside, but the setup is self-explanatory.
Build & Design
The charger is small enough to carry around if you wanted to in a small bag, but it’s still fairly large. On the bottom side there are 4 rubber feet which keep the charger from moving around while stationary on a desk. The overall construction is a nice feeling plastic with glossy edges, and a matte center that create a nice contrast and ‘premium look’. The charger feels right at home on my desk next to my Surface Pro 4 Dock even though its bigger.
All 5 of the ports are green on the inside just like Tronsmart’s other charger I was sent. This gives the charger a nice look, and can help you locate the ports when it’s a little darker inside. The power cable for the charging station measures around 3[ft] which is on the shorter side. I would have preferred if the power cable were at least 6[ft] for convenience.
Top
Bottom
Ports
Back
Charging
I only have 2 Nexus 6P’s right now to test the charger with, but I will try to get some of my friends together and charge phones on all 5 ports simultaneously. I used a USB voltage multi-meter to test the output of the ports along with a Tronsmart Type A-C cable to charge my Nexus 6P. When powered on there is an indicator light on the front right hand corner that will turn green as a nice touch. The port consistently giving 5.3V/1.55A via the A-C (correct 56K resistor) cable. This is what I would expect given the way A-C cables are supposed to behave. The charger will ramp up the voltage for QC 2.0 enabled devices to 9V and 12V depending on the way Qualcomm defines their charging.
Outputs:
5V/2A (10W) , 9V/2A (18W), 12V/1.5A (18W)
Test with my Nexus 6P and a Tronsmart Type A-C Cable
Summary
I am impressed with the quality and performance of this charger, and I would buy one as a gift for someone who needs some serious charging capacity for their home/office.
I would like to see a longer power cable supplied in the future, but other than that small detail the charger is excellent!
[3/15] The new longer cable is great, and now I have more flexibility with its positioning.
Tronsmart 4.8A/36W Dual Port Travel Charger (QC 2.0)
Tronsmart Dual Port Travel Charger
Overview
This charger is a great portable way to charge multiple devices in a smaller package. The charger can output a maximum of 4.8A (2.4A each port) and 36W giving you the ability to quick charge your devices.
What’s in the box
The charger includes 2 USB Type-C to Micro USB cables along with some documentation.
Build & Design
This charger looks like a miniature version of the desktop unit above. It features the same plastic construction with a glossy edge/matte center. A nice little feature of this charger is the ability to fold the plug nearly flat (the very tips of the plug stick out so you can easily unfold it) which bodes well for its portability.
Top
Bottom
Front
Plug extended
Charging
Tronsmart’s charger will output the same 18W as their desktop unit allowing you to somewhat future proof your charging needs for at least the time being. The charger also features a small green indicator light on it that isn’t bright enough to bother me at night (a good sign). It’s good to see a multi-port quick charger because last year when I bought my Nexus 6 any QC 2.0 charger, let alone a dual port model was hard to come by.
Outputs:
5V/2A (10W), 9V/2A (18W), 12V/1.5A (18W)
Summary
Tronsmart designed a great portable quick charger that is another nice addition for anyone that needs to charge multiple devices. The charger will still work great even if you have a single device, but the extra port won’t hurt if you get another device.
I will update this review periodically if anything changes, and hopefully I will be able to test all of the ports with QC 2.0 devices simultaneously.
Nice.
@dannygoround
OP updated with more details
Hi
Tronsmart 4.8A/36W Dual Port Travel Charger (QC 2.0) is compatible with macbook 12"???
Thanks
Regards
eullin said:
Hi
Tronsmart 4.8A/36W Dual Port Travel Charger (QC 2.0) is compatible with macbook 12"???
Thanks
Regards
Click to expand...
Click to collapse
I'm not sure because I don't own own, but I can send them a message and ask.
OP Updated with a new longer power supply cable for the Titan
First thing's first - thank you to DoDoCool for offering me this charger in exchange for a fair and unbiased review! Free product or not, fair and unbiased reviews is all that I'll do!
This charger is exactly what it sounds like. It plugs into your electrical outlet and gives you 5 USB outlets to power/charge all of your toys.
Two of those outlets are Qualcomm Quick Charge 3.0 compliant, the other 3 are standard USB.
My tests were pretty basic. I charged the following items all at the same time:
My Samsung Galaxy S7 Edge (via Quick Charge port)
My LG V495 (G Pad F 8.0 via quck charge port, although the tablet doesn't support quick charge)
My Wife's Microsoft Lumia 640 (standard USB port - phone doesn't support quick charge)
My EasyAcc 20,000 mAh power bank (used two of the standard USB ports in tandem)
All the devices charged up as expected, in fact the Lumia 640 seems to have charged faster than with the OEM charger. The EasyAcc power bank filled up quite quickly (as it should considering I was double-feeding it, and yes ,that's a supported feature on that power bank) , and the S7 Edge and LG tablet both charged as I would have expected them to with the same speed as the OEM chargers.
The beauty of this all - ONE power outlet being used. No more wall-warts all over the place or having to use a power strip to plug everything into.
Also, there was no noticeable temperature increase of the charger even with all 5 ports being used.
With a price point of $24.99 on Amazon, I'd recommend this product to ANYONE who has a lot of USB devices and limited outlets, or who just wants to consolidate into just one wall plug!
https://amzn.com/B01IJS2TOY
And here's the photos I took of the device during the unboxing .
https://goo.gl/photos/UGgrjLHLvs27hg6P7
I have recently bought an Oukitel K6000 Plus.
I also own an HTC One M8, several chargers, and several USB meters.
The HTC One M8 was sold with a classic 5V 1.5A charger, but the phone by itself has a QC2 chip, and can accept 9V chargers (QC2). When you put a USB meter between a QC2 charger and the M8, you see that after 5s, the charger goes for 9V.
With very recent phones, and QC3, you should see 12V.
QC3 protocol is designed to never burn an uncompatible phone; but, take care about your USB meter, some USB meters may not accept above 7V. I have various USB meters, some take 7V, some 9V, some 13V, some 20V. The protocol is harmless for active devices; but since the USB meters is a spy, it may burn if not designed for high voltage.
On my desk, I have set-up a classic 9V PSU with a USB plug; this way, my phone does not negocate; and I have put a thick copper cable, to have no loss. My HTC M8 was happy with this; the QC2 chip can accept direct 9V. All other devices would burn on this plug, because on this plug, I send raw 9V without any protocol or negociation. This is home made.
Note that older HTC phones like the Sensation do not implement yet Quick Charge (Sensation is not even QC1), and still it accepts up to 7V (it's written in some file under /sys). So, while most people used to use 5V USB chargers for the Sensation, I have already built my fixed 7V charger for this phone ... and i was charging twice faster than any one else; and I was probably the only person on the planet to charge the Sensation at 7V.
Now, I own two 9V phones, and two official 9V chargers. When I plug the K6000 on the provided charger, USB meter nicely adverts 10V. When I plug my M8 on a QC2 charger (from Amazon), USB meter also shows a nice 9V. This means super fast charge (90-100 min to fully charge from 0% to 100%; at most 120mn if I am using the phone during charge).
The issue I had was when I tried to swap the chargers: put the M8 on the Oukitel charger, and the K6000 on a QC2 charger. Then, in both cases, the USB meter sticks to 5V.
This means ... neither the Oukitel charger, or K6000 phone are QC2 compatible. Oukitel does a fast charge, at 9/12V; but not with the Quick Charge protocol.
This means, if you buy any faster charger from anywhere, the Oukitel phones will charge at only 5V; and when you count on voltage loss over the USB cable, I sware you will be luck if you charge your phone in 4h, phone switched off.
After spending a few hours on Google, I have those three sellers, who sell the original Oukitel charger:
https://fr.aliexpress.com/item/Orig...51960957.html?spm=a2g0w.search0304.4.9.Si9JZR
https://fr.aliexpress.com/item/Ouki...730221.html?spm=a2g0w.search0302.4.142.rUQMcL
https://fr.aliexpress.com/item/Orig...129853.html?spm=a2g0w.search0302.4.180.ZOEQRv
Out of this, I have been completely unable to find any 9/12V charger for Oukitel on any other website: Ebay, Amazon, BangGood ...
This becomes a huge issue for car chargers: since absolutely no-one builds "Oukitel compatible" chargers, and Oukitel does not seem to build any car chargers ... there is no car charger for the Oukitel.
The workaround is to buy a 9V car supply, and solder a USB cable on it. Most Oukitel phones take 9V (K6000 pro and plus; several K4000). IMHO, the K10000 takes 12V (but, you should check this yourself).
Even if the K10000 accepts 12V, you can not provide the raw 12V from the car, because the car voltage may vary from 11.4 to 15V (strictly, all car devices must be 18V compliant; truck devices must be 36V compliant). Your phone may dislike the 15V peaks (which occur frequently).
I am not yet sure about the exact voltage my K6000 Plus wants. My USB meter shows 10.4V, on PSU side. I don't know if this ought to be a very low 12V because PSU has a poor design, or if the Oukitel protocol includes a fine tuning communication, so that the phone receives 9V on phone plug, and PSU has to over-voltage the output voltage to compensate the loss over cable. When USB meter says there are 10.4V on USB-A plug, the phone claims 9.2V on phone side. Not sure the reason of this. More testing would need a few hours digging (insert the USB meter at the micro-USB-B side).
So, can any one give any detail on the Oukitel protocol used for charger voltage tuning ?
When I plug my Oukitel on the raw 9V USB plug, if Android is running, the phone is happy, and will charge the battery. If the phone is turned off, then, the phone will refuse to charge from 9V (you either need a 5V charger, or start Android - have not tried to dig what happens with TWRP, Recovery, FastBoot, FactoryTools ...).
I am very sad to see this phone completely uncompatible with classic protocols. I understand that the license for QC2 chip is very expensive, and the Oukitel phones are designed to bring huge power at low cost; they walked around the QC2 patents by redesigning the Faster Charger; I can understand this from a dev point of view; but I completely reject it from a user point of view. All my QC2 chargers are useless; and without the original Oukitel charger, charge time has to be 4-8h, with phone iddle or off.
Unless you solder a USB plug on a 9V PSU ... which is very dangerous if you accidently plug an uncompatible device (earset, power bank, old phone ...).
And, don't just take any 9V PSU; it needs to be able to feed at least 1.5A !!!
I feel disapointed.
Quick Charge just came out with a good standard, and more and more phone brands were starting to use it (Samsung, Nokia); and chinese companies now re-invent the wheel ... this brings me back to the old times of Mac being uncompatible with Windows ... when saving a word document on a floppy was the most complicated thing on earth because you had to take care about bitwise issues (a file written on a floppy with Microsoft-Word from a MAC could not be read with Microsoft-Word on Windows-PC ... then, after a few years, they published an update to fix the issue )
Hey!
I noticed recently that my G5 charges quite slow. So I tested all of my powerbanks, cables, and wall chargers, in various combinations. I had 4 different powerbanks, 3 wall chargers, and 4 cables.
I used a USB ammeter to measure the power draw going through the USB cable.
On the motorola charger and cable that came with the phone, it charges at 1.8a. I then charged my phone from each powerbank and wall charger, using each cable in turn. The average charge speed for my phone was about 0.5a. Out of 28 combinations, only 2 yielded a draw over 1a.
I have created a spreadsheet detailing the charge speeds of each combination, but unfortunately cannot post it yet (10 post permissions).
I then charged my USB powerbanks from the same wall chargers, using the same cables. One powerbank charged at over 1a with every combination, and reached over 2a on numerous combinations. This proves that the cables and wall chargers are not at fault, it is a phone issue.
Why? Has motorola put something in their chargers that 'talks' to the phone, and allows for faster charge speeds? 0.5a is awful!
Secondly, does anyone know of cables that I can buy, which will support fast charging for the motorola? I have looked at genuine motorola cables, but there is no way to tell one from the other.
Thanks!
Paul
P.s. charge speeds were the same, whether the phone was switched on or off.
Welcome @agour
I've come up to a similar conclusion with a lot less data (thus I didn't share them).
I caught power consumption at the wall outlet when charging my device with two chargers: Motorola stock charger and a Samsung Adaptive Fast Charger.
The Samsung has the following specs: 5V 2A or 9V 1.67A with fastcharging capable device.
Using Samsung Adaptive fast charger and Samsung 1.5m cable : 6W, so the device charges at something like 5V 1.2A...
Using Samsung Adaptive fast charger and the cable provided with my XT1676 : 11.3W (which is coherent with the max 9V 1.6A, and would mean the charger provides 2.2A if at 5V which more than the specs.)
Using stock charger and stock supplied cable : 11.3W ==> fast charge for similar reasons as above
Using stock charger and Samsung 1.5m cable : around 6W ==> low power charge
I'd need a USB multimeter to confirm those data. (mostly due to the variable voltage that can provide fast charge adatpers)
matmutant said:
Welcome @agour
I've come up to a similar conclusion with a lot less data (thus I didn't share them).
I caught power consumption at the wall outlet when charging my device with two chargers: Motorola stock charger and a Samsung Adaptive Fast Charger.
The Samsung has the following specs: 5V 2A or 9V 1.67A with fastcharging capable device.
Using Samsung Adaptive fast charger and Samsung 1.5m cable : 6W, so the device charges at something like 5V 1.2A...
Using Samsung Adaptive fast charger and the cable provided with my XT1676 : 11.3W (which is coherent with the max 9V 1.6A, and would mean the charger provides 2.2A if at 5V which more than the specs.)
Using stock charger and stock supplied cable : 11.3W ==> fast charge for similar reasons as above
Using stock charger and Samsung 1.5m cable : around 6W ==> low power charge
I'd need a USB multimeter to confirm those data. (mostly due to the variable voltage that can provide fast charge adatpers)
Click to expand...
Click to collapse
Interesting! It's suprising how much difference the combinations can make.
I don't think I have experienced this on a phone before, however I have never felt the need to test it...
I tested the original cable that came with the phone, and an off the shelf 'genuine motorola cable'. The stock cable is still the fastest, however the secondary cable still worked very well.
Interestingly, one of my powerbanks will charge at 2.2a from pretty much EVERY powersource and cable combination. This is with 7 cables tested, and 3 USB wall adapters.
Shame that motorola doesn't allow their phones to draw maximum power from hardware that can provide it..
agour said:
Interesting! It's suprising how much difference the combinations can make.
I don't think I have experienced this on a phone before, however I have never felt the need to test it...
I tested the original cable that came with the phone, and an off the shelf 'genuine motorola cable'. The stock cable is still the fastest, however the secondary cable still worked very well.
Interestingly, one of my powerbanks will charge at 2.2a from pretty much EVERY powersource and cable combination. This is with 7 cables tested, and 3 USB wall adapters.
Shame that motorola doesn't allow their phones to draw maximum power from hardware that can provide it..
Click to expand...
Click to collapse
If I have some time, I may test internal impedance of the cables, it is possible that the device somehow probes the cable (or the cable + charger) and then decides if it can or not draw that much power without overheating/melting the cable; and then it will negotiate the quickCharge with the charger.
there has been a discussion about quick charge on this thread a while ago (before I got this devices : https://forum.xda-developers.com/g5/help/quick-charge-3-0-support-t3632457)
Lenovo adds the following that I have not tested:
Lenovo said:
If your device is below 78%, but it does not begin Turbo charging when you plug it into the Turbo Charger, try uplugging and plugging back in using one fluid motion.
Click to expand...
Click to collapse
[Source]
It is quite obvious that especially cheap cables will charge phones much slower as the resistance is too high, even if the phone does not perform any checks. Those cables are basically too thin. Resistance limits the current (amps) that can flow. Newer phones most likely just look at the charge current during the first x seconds (or less) and then decide wether to enable fast charging or not to keep the cable from heating up. A wire with high resistance is basically a heater. So it's a necessary safety feature (from the companies POV).
Regarding the power bank, it may be possible that this particular design provides a voltage slightly higher than the nominal 5 volts (still fine for most devices), which helps overcome the resistance. That is also the reason why the Samsung fast charger provides 9V: You don't need a cable as thick as with 5V.
Keep in mind that the USB specifications only recently got updated for such high charging currents, so it is advisable to use only the cable that comes with the phone as USB cables in general don't need to provide such high currents by spec!
71n4 said:
It is quite obvious that especially cheap cables will charge phones much slower as the resistance is too high, even if the phone does not perform any checks. Those cables are basically too thin.
Resistance limits the current (amps) that can flow. Newer phones most likely just look at the charge current during the first x seconds (or less) and then decide wether to enable fast charging or not to keep the cable from heating up. A wire with high resistance is basically a heater. So it's a necessary safety feature (from the companies POV).
Regarding the power bank, it may be possible that this particular design provides a voltage slightly higher than the nominal 5 volts (still fine for most devices), which helps overcome the resistance. That is also the reason why the Samsung fast charger provides 9V: You don't need a cable as thick as with 5V.
Keep in mind that the USB specifications only recently got updated for such high charging currents, so it is advisable to use only the cable that comes with the phone as USB cables in general don't need to provide such high currents by spec!
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That sounds correct, although my Samsung wall adapter is fast charge capable, and was provided with a cable (and not a cheap one), that basically can't be use for fast charging with the G5, that looks silly...