USB charging and amperage?? - Epic 4G Q&A, Help & Troubleshooting

What is the voltage and amps on the charger that came with Epic? I've got a bunch of charges around that are usually around 5V and .5A.
Just trying to lighten the load when I travel. Noticed the nook color charger: 5V, 1.9 A, and Kindle Charger 4.9V, .85 Amps. The one I'm on now is a Samsung 5V, .7 Amps.
What is the effect of using different rated charging on the Epic. Would the .85 Amp charger charge faster? Or too fast and cause damage?
Just wondering....

akenis said:
What is the voltage and amps on the charger that came with Epic? I've got a bunch of charges around that are usually around 5V and .5A.
Just trying to lighten the load when I travel. Noticed the nook color charger: 5V, 1.9 A, and Kindle Charger 4.9V, .85 Amps. The one I'm on now is a Samsung 5V, .7 Amps.
What is the effect of using different rated charging on the Epic. Would the .85 Amp charger charge faster? Or too fast and cause damage?
Just wondering....
Click to expand...
Click to collapse
could cause a potential over heat of battery

akenis said:
What is the effect of using different rated charging on the Epic.
Click to expand...
Click to collapse
USB operates at 5V, and any charger with a USB "type A" receptacle will output at 5V. Furthermore, it's safe to use the Epic with any USB-based charger.
Now, the problem is that the Epic will not draw more than 0.5 A from a USB port that isn't wired to the USB Battery Charging specification, so using a charger with a higher current rating will not charge faster if it doesn't meet that specification. Many chargers do, however, Apple uses an incompatible specification, so any iPhone/iPod-compatible, high current charger is of limited use on the Epic.
I've found that when you plug the Epic in, if the LED turns red and there's no "Select USB mode" menu, then the charger is properly compatible. If you do get a "Select USB mode" menu, then current draw is limited to 0.5 A and it will charge more slowly.
akenis said:
Would the .85 Amp charger charge faster?
Click to expand...
Click to collapse
The Epic itself appears to max out around 0.7 A, so the 0.85 A charger is unlikely to charge appreciably faster than the Samsung OEM charger. Assuming it follows the USB Battery Charging spec, it shouldn't be any slower either.
akenis said:
Or too fast and cause damage?
Click to expand...
Click to collapse
The charge current is actually phone dependent--the phone itself will never draw too much current and cause damage to the phone. Furthermore, the USB Battery Charging spec requires that phones (and other USB devices) implement sensing circuity to avoid overloading a charger.
In short, one of the design goals of USB is that, if you can physically plug a device into a receptacle, then it should do something reasonble, if not optimal, and never cause damage.

Yeah I've used my 1A chargers from my old Hero and they don't seem to charge any faster, nor overheat the battery than any extra than the standard charger.
Charging off USB sucks though (from a computer) 500mA is noticably slower than 700mA. I wish there was an app or mod to allow it to draw 700mA from a computer's USB port. I know USB 3.0 is safely able to supply 900mA so I'm curious if the device is configured to allow this. (unfortunately I do not currently have any computer with USB 3.0 but it's still something I'm interested in)
My old HTC TouchPro had a mod to allow full speed (I guess 1A charging) from the 5V port on my laptop and desktop. It never hurt my usb controller on either of them and they still work fine to this day. I swear I heard that USB 2.0 can unofficially support 900mA as well, which explains why my ports never burnt out from my TouchPro's added load

tazfanatic said:
could cause a potential over heat of battery
Click to expand...
Click to collapse
And then this would happen:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Totally kidding

No problems here using the 2A nook charger, 1A iphone charger or 700mA blackberry charger. As long as the charger is 700mA or better it'll fast charge. No such thing as too much amperage, the device will only draw what it needs. In the case of 500 mA, it'll slow charge. Any less than that and it's hit and miss, but probably won't charge at all.

insanity213 said:
No problems here using the 2A nook charger, 1A iphone charger or 700mA blackberry charger. As long as the charger is 700mA or better it'll fast charge. No such thing as too much amperage, the device will only draw what it needs. In the case of 500 mA, it'll slow charge. Any less than that and it's hit and miss, but probably won't charge at all.
Click to expand...
Click to collapse
Interesting.... tried the nook color charger and it doesn't fit. Looks kinda the same, but it's not. NC people said that device would not charge from computer USB.
Sent from my SPH-D700 using XDA Premium App

If you have a device that only pulls .8 amps and you hook it up to a 2 amp charger....guess how many amps it is going to pull? You guessed .8 amps. Woohoo!
Kinda like how your circuit for your bedroom is a 20 amp circuit. Does you alarm clock pull 20 amps now?

akenis said:
Interesting.... tried the nook color charger and it doesn't fit. Looks kinda the same, but it's not. NC people said that device would not charge from computer USB.
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
I use the nook power brick with a standard microusb cable - like the stock epic one or a crackberry cable. The nook cable is different, but the USB port on the charger itself is standard.
And yes, the nook won't charge off of a PC. PC USB ports only deliver 500mA and the nook wants more.

Related

Wall charger vs USB charger

Hi,
I have noticed my phone charges much quicker via the USB on my PC. It takes about 2 hours to charge fully, while the wall charger takes 3-5 hours to charge like 40% or something.
The specifications for the wall charger are:
INPUT: 100-240V ~ 50/60Hz 0.2A
OUTPUT: 5.1V=== 850mA
I do'nt know what the specs for my USB port are? Can I check it in the BIOS? I have googled and found it's something around 5V 500mA, so technically my phone would charge slower...
This is how the wall charger looks like (you can unplug the USB-cable and use it on the PC since it's not a standard USB-mini connection).
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Thanks for any feedback.
EDIT:
(moved a post to this thread)
Cocide said:
Well the 500mA is the minimum spec for USB, basically they say its at least 500mA so that manufactures know how much power to expect and can design devices to run at that amount of power or less. That being said, USB can be anything above 499mA, I have seen a laptop put out 2000mA before even. So yes it is quite possible that your computer could put out over the 850mA of your charger. It probably won't say what its capable of delivering in your BIOS, if you really want to know you could try to find the specs for your computer/mobo/usb chipset. All that being said, you could always get a different USB wall adapter if you wanted to charge faster w/o a computer, just because it came with the one you currently use doesn't mean you have to use it (it is just a powered USB port after all).
Click to expand...
Click to collapse
Seems like your wall charger is defective, normally It takes about 1.5-2 hours for working wall charger to make the job done.
Standard PC USB port output is 5v==500mA, so it's strange that you can fully charge 1140 mAh battery just in 2 hours.
G1-Amateur said:
Hi,
I have noticed my phone charges much quicker via the USB on my PC. It takes about 2 hours to charge fully, while the wall charger takes 3-5 hours to charge like 40% or something.
The specifications for the wall charger are:
INPUT: 100-240V ~ 50/60Hz 0.2A
OUTPUT: 5.1V=== 850mA
I do'nt know what the specs for my USB port are? Can I check it in the BIOS? I have googled and found it's something around 5V 500mA, so technically my phone would charge slower...
This is how the wall charger looks like (you can unplug the USB-cable and use it on the PC since it's not a standard USB-mini connection).
Thanks for any feedback.
Click to expand...
Click to collapse
USB spec calls for 5V, 500mA max output (it's often less - reason is that it's 500mA per hub and in must configurations multiple ports share a single hub internally so multiple devices all plugged in at the same time will share the 500mA).
Your charger should charge in about half the time of your PC USB. Your wall charger must be defective.
richb500 said:
USB spec calls for 5V, 500mA max output (it's often less - reason is that it's 500mA per hub and in must configurations multiple ports share a single hub internally so multiple devices all plugged in at the same time will share the 500mA).
Click to expand...
Click to collapse
Actually you got that backwards, its 500mA minimum. Check the docs if you do not believe me. And before you quote it, yes I do know that wiki says "A maximum of 5 unit loads (500 mA) can be drawn from a port in USB 2.0" that is because they are talking about the maximum that you are guarantied to receive as a USB device. You really need to read both sides of the documentation for this one, the USB protocol documentation for the computer side says it will provide 500mA minimum, and for the device side they say draw 500mA maximum. That way manufactures know that they can draw 500mA maximum to fully power the device because they are guaranteeing that they will be given at least that amount or more. Often times ports will actually put out more because manufactures are aware that devices charge over USB, and of course you can have ports that do deliver less because of some extenuating circumstance.
Granted that is all per port (and internal USB bus is not the same as a USB hub, they often provide full power per port), if you have a hub you are using it can be less, but you can not assume its a hub.
Long story short, if it has the USB sticker on it it puts out at least 500mA all the way up to whatever the manufactures prerogative was.
Wall charger charges much faster in my case. Just a little more than 1 hour.
The charging time is depend on the charging current. Wall charger is around 850-1000ma, usb is below 500ma (for some bad PC, it could be as low as 200ma). The capacity of the flipout battery could be 1130mah. 1130/1000 = 1.13 hour full charge time.

USB Charger - Upgrade Mod for SGS Phones.

more/better/other info in this thread. http://forum.xda-developers.com/showthread.php?t=1384253
This post will show you how to MOD an un-official Samsung USB wall charger into one that will enable full speed charging on Samsung Galaxy S phones.
8 $ ebay cheap wall battery charger power output specs:
350 mA battery charging speed - doesnt matter...
800 mA USB port.. THIS IS WHAT YOU WANT!! more the better. nice if the phone would use all of it... Need AC Mode...
Samsung wall USB charger is only 750mA! AND it will set AC mode.
The theory behind it is with samsung galaxy phones and "official chargers":
if the middle 2 data pins on the usb, while getting 5v to the outer 2 pins it tells the phone that it is an *official samsung* charger and enables full speed charging.
without the middle 2 pins connected (with or without data flow) will not charge at full speed. even if you supply 800mA it will only charge around 350mA
well there have been posts of cable hacks to do this or adapters... ha! tape and tinfoil... or hack the cable apart! And you cant use the cable with the PC anymore!
heres my mod... bend 2 pins.. DONE! solder if you know how for better connection!
***only use this charger for samsung phones, not all USB devices will like this, -may dammage some- as the samsung phone is PROGRAMMED to know what to do if the 2 data pins are shorted out***
Phone confirms AC charging NOT USB NOW!! But Camera Died!
Now i can leave my Samsung Charger upstairs, and this one downstairs.
You know how long it takes to charge an extended battery on USB mode? or at 350 mah in the battery charger?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Check out xda portal!!! Guess whos post made front page????
update on this mod..
was able to charge my extended battery from 8% to 100% in about 2 hours 45 min over USB with the screen off never timed before the mod but it was slower. In the official samsung charger it was a little over 3 hours. just in the battery cradle it takes around 5-6 hours. Very much improved!
Good tip ! sometimes I am almost 24 hrs.. this will help !
my old iPhone USB cable is capable of supplying up to 1A. it may be worth it to modify a cable, glue it in so it's no longer repurposable, and use the old iPhone wall adapter.
When I plug my old Blackberry charger into the phone, it shows "Charging (AC)" under the Status menu, is this saying that the Blackberry charger is putting the Cappy into full charge mode? Unfortunatly the charger does only say only 700mA output anyway.
yes its charging at full speed if it says AC. congrats.
good to know about BB chargers.
TRusselo said:
yes its charging at full speed if it says AC. congrats.
good to know about BB chargers.
Click to expand...
Click to collapse
1A > 700ma. iphone wall charger has a usb port on it only.
TRusselo said:
yes its charging at full speed if it says AC. congrats.
good to know about BB chargers.
Click to expand...
Click to collapse
More accurately, it means the phone will try to charge at full speed. I have an external battery that has the pins shorted, phone says AC, but it can only output 500ma, so it doesn't charge any faster.
Sent from my SGH-I897 using XDA Premium App
tiuk said:
More accurately, it means the phone will try to charge at full speed. I have an external battery that has the pins shorted, phone says AC, but it can only output 500ma, so it doesn't charge any faster.
Sent from my SGH-I897 using XDA Premium App
Click to expand...
Click to collapse
MORE accurately (as said before) it WILL charge at full speed, OF THE CHARGER.. not the phone. UPTO the full speed of the phone.
thats why i said my charger upped it to 800 not 1100ish in the first post. and why i told the other guy his is working at 700. it depends on the chargers output, that has been explained thank you.
and your charger that is putting out 500ma IS FASTER. without the mod your phone is only charging at "usb speed" or around 375ma ish... just barely faster...
+1 on the BB charger, my Cappy didn't come with a charger and I always had it plugged to that BB charger, I'm used to measure the battery charging time of my old Dell Streak on a "desktop charger" and took about 4 hours, this cappy charges in 2 hours and something, maybe 3 haven't measured accurately but I know it is waay quicker than 4 hours.
I literally just picked one of these up last night! Will be doing this mod asap thanks for the info!
just wondering after doing this mod, is the blue light supposed to be on the whole time now?
task650 said:
just wondering after doing this mod, is the blue light supposed to be on the whole time now?
Click to expand...
Click to collapse
Interested about this as well. TRus does it?
yes the blue light is normal. the pins you connect inside dont connect to anything in the charger, they are just connected to themselves.
the blue light was on before the mod...
TRusselo said:
yes the blue light is normal. the pins you connect inside dont connect to anything in the charger, they are just connected to themselves.
the blue light was on before the mod...
Click to expand...
Click to collapse
The light is the indicator for if you charge the battery in the battery bay.
Am I right?
the light indicates power:
Blue for plugged in empty, or fully charged (battery or USB)
Pink if anything is drawing power (charging through battery or USB)
Purple if you have a battery and USB drawing power (over-drawing power!! disconnect one)
Hey Trusselo,
Nice mod. I bought of these with two after market batteries for $10. What do you think about wiring the battery contacts to a switch to the usb port to use the backup battery/charger as a portable charger? That way, you can go from charging the battery to using the battery aa portable charger?
Sent from my GT-I9000 using XDA App
i barely understand what you are trying to say, however, the battery contacts on the charger are only 350mah , the usb port on the CHARGER is 800, so wiring the battery contacts on the charger (with or without a switch) would be a bad choice.
you may want to re-read the OP...
No offence intended
TRusselo,
No offence intended by the previous post. I didn't mean to thread jack either. I was just wondering whether it would be possible to use the same hardware intended to charge a spare battery and use it as a portable phone charger using the battery as the power source. Thanks for the info; I was hoping to convert this charger into a portable phone charger as well as keep the current functionality (using the switch). Thanks for the info though.

USB car charger from Walmart

Can the GT 10.1 plug into any USB car charger?
I was looking at this from Walmart's website
If so, it'll be a lot cheaper than the car charger Samsung is selling
http://www.walmart.com/ip/Scosche-Dual-USB-Car-Charger/5691047
Sent from my GT-P7510 using Tapatalk
I've noticed that plugging into various USB wall chargers won't work. The only one that will work is the one that came with the tab. I am pretty sure this is because the Samsung one is a 2amp charger and all of my others are less than 1amp, 850mah specifically. If you can find a 2amp car charger then it should work fine. Otherwise, the charging indicator will show that it's connected to a charger but will have a red x on in it meaning that it's not charging or can't charge. I suppose anything too low can't charge the battery fast enough to make up for the battery drain
i bought a $10 2 port charger from amazon for the ipad/galaxy tab 7". it works fine for both tablets and the gt10.1.
madsquabbles said:
i bought a $10 2 port charger from amazon for the ipad/galaxy tab 7". it works fine for both tablets and the gt10.1.
Click to expand...
Click to collapse
Do you have the link?
Make sure it has a 5v 2a output.
Sent from my GT-P7510 using XDA Premium App
X10D3 said:
Make sure it has a 5v 2a output.
Sent from my GT-P7510 using XDA Premium App
Click to expand...
Click to collapse
Ok. Thanks.
Sent from my GT-P7510 using Tapatalk
oh......i see.
X10D3 said:
Make sure it has a 5v 2a output.
Sent from my GT-P7510 using XDA Premium App
Click to expand...
Click to collapse
Sent from my SHW-M110S using XDA App
I bought this one from deal extreme. Its less than $3.95 with free shipping. Comes with 2 usb ports. I have been charging my iPad and Dell Streak tablet without any problem. Yes it does charge 2 devices at same time. Its also small, doesn't get hot, doesn't make any noise and looks good. Highly recommended.
http://goo.gl/u00Gz
media_11 said:
I bought this one from deal extreme. Its less than $3.95 with free shipping. Comes with 2 usb ports. I have been charging my iPad and Dell Streak tablet without any problem. Yes it does charge 2 devices at same time. Its also small, doesn't get hot, doesn't make any noise and looks good. Highly recommended.
http://goo.gl/u00Gz
Click to expand...
Click to collapse
I will definitely look into that particular model.
Sent from my GT-P7510 using Tapatalk
figurine said:
I've noticed that plugging into various USB wall chargers won't work. The only one that will work is the one that came with the tab. I am pretty sure this is because the Samsung one is a 2amp charger and all of my others are less than 1amp, 850mah specifically. If you can find a 2amp car charger then it should work fine. Otherwise, the charging indicator will show that it's connected to a charger but will have a red x on in it meaning that it's not charging or can't charge. I suppose anything too low can't charge the battery fast enough to make up for the battery drain
Click to expand...
Click to collapse
it's. still charging. you can get a trickle charge even from standard USB. s3ms that this is one of the only tegra2 tablets that can.
I heard that the trnaformer can but mine doesn't. it should work if I had USB.3.0.
madsquabbles said:
it's. still charging. you can get a trickle charge even from standard USB. s3ms that this is one of the only tegra2 tablets that can.
I heard that the trnaformer can but mine doesn't. it should work if I had USB.3.0.
Click to expand...
Click to collapse
So if l'm using it to watch videos and music while on wifi, do you think that it'll maintain its charge while trickle charging?
I bought a couple of these adapters;
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=330565218553&ssPageName=ADME:X:RTQ:AU:1123
Now I can charge my Galaxy Tab 10.1v off ANY USB port - very very handy. Works just very well from a PC USB port too.
figurine said:
So if l'm using it to watch videos and music while on wifi, do you think that it'll maintain its charge while trickle charging?
Click to expand...
Click to collapse
i don't think the amount coming in will equal the amount discharged. depends on the brightness of the screen and how much cpu you're using. mine was charging veeeerrry slowly while reading the steps to root and the screen on, other than that it was idle and still slowly charged.
media_11 said:
I bought this one from deal extreme. Its less than $3.95 with free shipping. Comes with 2 usb ports. I have been charging my iPad and Dell Streak tablet without any problem. Yes it does charge 2 devices at same time. Its also small, doesn't get hot, doesn't make any noise and looks good. Highly recommended.
http://goo.gl/u00Gz
Click to expand...
Click to collapse
I also bought this. Arrived in 3 weeks from China, but free shipping, or $0.01.
They seem very good. There is some hard to read text (even in English) on the plastic part that tells you the top port is for iPad (2.1A) and the bottom is for others (1A). I've put a photo below of the guts. Seems it's definitely more than just some cheap resistors and a fuse.
I tried it in my vehicle and you still get the red X with a OEM cable with the device powered on, but NOT if you use an adapter plug found on eBay.
Do yourself a favor and order 3-4 of each. =)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
figurine said:
I've noticed that plugging into various USB wall chargers won't work. The only one that will work is the one that came with the tab. I am pretty sure this is because the Samsung one is a 2amp charger and all of my others are less than 1amp, 850mah specifically. If you can find a 2amp car charger then it should work fine. Otherwise, the charging indicator will show that it's connected to a charger but will have a red x on in it meaning that it's not charging or can't charge. I suppose anything too low can't charge the battery fast enough to make up for the battery drain
Click to expand...
Click to collapse
Nope - you need a 2A charger, but any old 2A charger won't do. Most are designed for the iPad, which uses resistive voltage dividers in the charger to signal the presence of a dumb charger. Specifically the iPad looks for 2.0 volts on one of the data pins and 2.8 on the other.
The Tab expects D+ and D- to be shorted together and somewhere around 1.2-1.24 volts.
It IS possible to make iPad chargers (confirmed on Scosche reVIVE II) work as follows:
Bridge D+ and D- with a solder blob.
Remove the resistor that was the upper part of the 2.8v voltage divider (i.e. between the data pin and +5v).
At this point the charger should output around 1.2 volts on D+ and D-.

Car Charger

Hi guys, anyone could recommend a good car charger for this HTC One. I am running an app called Autoguard which records my trip. I manually activate car mode and this app but I realised my current car charger is not able to charge the phone quick enough despite a 2A rating with BT and this app running. It drains about 10% on a half hour journey! I have also did a little mod on my USB cable to short pin 2 & 3 but don't seems to work. I also read about charging modes (AC or USB) which the latter charged slowing whereas AC gives the full charging potential. I confirmed my current charger charged in USB mode. Any thoughts?
Seems like nobody has this problem!
I personally use the Motorola Rapid rate charger from Amazon.com
http://www.amazon.com/gp/aw/d/B000S5Q9CA/ref=mp_s_a_1?qid=1367933488&sr=8-2&pi=SL75
It works for me and does a great job.. I've had it for quite some time. My Galaxy Nexus on Verizon while using LTE was using more output than input while I was charging with a no name charger before so I decided to give this a shot and it worked. It charged and the percentage went up instead of trickling slowly with the no name charger..
I used it now with my H1 and it charges pretty quickly
Sent personally from the HTC one & only
Thanks HYE_Tech, this is useful information!
I just use a two port 2.1 volt dual usb charger and just plug a regular micro usb cable there
Sent from my HTC One using Tapatalk 2
I find the HTC branded car charger works well
http://www.htcaccessorystore.com/uk/p_htc_item.aspx?i=246652&phone=246667
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sent from my HTC One using xda app-developers app
But what would make the difference between charging the One ore not while navigating?
I have a mini charger with an output of 1A, but still the phone in draining while navigating. Could this be the same issue as with the Galaxy S2, that it depends on the usb pin layout whether the phone charges with 500mA or 1A? And if so, isn't there a usb cable which already has the correct pin layout to charge to phone with 1A?
Bart1981 said:
But what would make the difference between charging the One ore not while navigating?
I have a mini charger with an output of 1A, but still the phone in draining while navigating. Could this be the same issue as with the Galaxy S2, that it depends on the usb pin layout whether the phone charges with 500mA or 1A? And if so, isn't there a usb cable which already has the correct pin layout to charge to phone with 1A?
Click to expand...
Click to collapse
The One doesn't seem to change charging rates based on the USB pin layout-- I have several chargers and cables with shorted data cables and none of them seem to charge the device at higher than 500ma. It's definitely the phone itself that's not drawing more. I think that, either via software or hardware, the phone is checking the wattage available and if it is below 5Vdc/2A, it only draws 500ma. I just ordered a DC adapter that claims to be rated at 5Vdc/2A, and it should be delivered tomorrow.
Well in my car the charger is a 2.1A charger so that should not be the problem.
Not shure what the voltage output is.
I shortened the middle pins, but indeed, without succes.
Where did you order your charger? Can you let me know if it's working? If the phone sees it as a AC charger?
edit:
I have this one: http://www.bol.com/nl/p/hama-ipad-p...8284/?Referrer=ADVNLBES0020159005000010898284 (sorry it's in dutch). So it should be a 5V charger but still no effect...
Bart1981 said:
Well in my car the charger is a 2.1A charger so that should not be the problem.
Not shure what the voltage output is.
I shortened the middle pins, but indeed, without succes.
Where did you order your charger? Can you let me know if it's working? If the phone sees it as a AC charger?
edit:
I have this one: http://www.bol.com/nl/p/hama-ipad-p...8284/?Referrer=ADVNLBES0020159005000010898284 (sorry it's in dutch). So it should be a 5V charger but still no effect...
Click to expand...
Click to collapse
This is the one I ordered:
Kinivo CX420 Two Port USB Car charger - for all smartphones and tablets (4.2 Amp / 20W)
http://www.amazon.com/dp/B009TBF7IG/ref=cm_sw_r_an_am_ap_am_us?ie=UTF8
If this one doesn't work, I'm just going to permanently mount a 150W inverter and start using AC adapters. All of the 2.1a adapters show as charging via AC, but it still tops out at 500ma.
edit: i've been posting all over these forums with the same stuff... here's a link to whatever thread I just responded to with the most current information: http://forum.xda-developers.com/showpost.php?p=41797839&postcount=6
I doubt if that will work. The output of the AC charger is only 1A and 5V, so there is something else why the phone thinks it's on an AC or USB charger. Still haven't found out what though
I just took apart an AC charger, and guess what, the two middle pins are shortened:
So what else tells the phone it's on an AC charger or USB charger???
Bart1981 said:
I doubt if that will work. The output of the AC charger is only 1A and 5V, so there is something else why the phone thinks it's on an AC or USB charger. Still haven't found out what though
I just took apart an AC charger, and guess what, the two middle pins are shortened:
So what else tells the phone it's on an AC charger or USB charger???
Click to expand...
Click to collapse
I really think it's just down to output wattage, and nothing more. I have plenty of chargers with the middle pins shorted, and even though the phone says it's charging on AC, it only draws 500ma. That charger I linked my last post has been actually charging my phone while it's in use, pretty nearly 100% of the time. It does dip from time to time, but I've noticed that the AC adapter does too.
Sorry to bring back an old thread, but I've seen some conflicting posts. Should I be getting a 2a car charger? I'm not sure what my current one is rated at as I haven't checked, but today in car mode and with bluetooth connected it was draining instead of charging and I'd like to fix that. I need a 2 usb port charger and I know most of those are not actually 2a per port, any suggestions? Is 2a what I need?
Thanks,
Tim
Unless you're using custom kernels, I believe the htc one is limited to 1a charging
Sent from my HTCONE using Tapatalk 4 Beta
HYE_TECH said:
I personally use the Motorola Rapid rate charger from Amazon.com
http://www.amazon.com/gp/aw/d/B000S5Q9CA/ref=mp_s_a_1?qid=1367933488&sr=8-2&pi=SL75
It works for me and does a great job.. I've had it for quite some time. My Galaxy Nexus on Verizon while using LTE was using more output than input while I was charging with a no name charger before so I decided to give this a shot and it worked. It charged and the percentage went up instead of trickling slowly with the no name charger..
I used it now with my H1 and it charges pretty quickly
Sent personally from the HTC one & only
Click to expand...
Click to collapse
I've used this exact same charger for some time now w/o issue on several phone types. I bought it based off it's many positive reviews and it has lived up to it's reputation.
I got my HTC One car kit,by HTC,its just perfect ,its made just like htc one- awesome build quality .Brings on car mode automatically just by sliding in the One.:good:

Rapidly charging via 9V 1.8A charger

Hello! I've bought LG's MCS-H05EP travel adapter (like this one http://www.ebay.co.uk/itm/Genuine-LG-MCS-H05ER-MCS-H05EP-1-8Amp-White-USB-Mains-Charging-Adapter-EU-/331938303153) which is sold with USB A to USB Type-C cable. On the adapter it is written 9V at 1.8A or 5V at 1.8A. The stock adapter goes for 5V at 3A which activates the rapid charging. So, I was quite surprised that the rapid charging also gets activated (and the device charges as fast as it does with the stock adapter) using the MCS-H05EP travel adapter. Here https://support.google.com/nexus/answer/6102350?hl=en it is said that "The input voltage range between the wall outlet and this charger is AC 100V–240V, and the charger’s output voltage is DC 5V, 3A." So, I'm kinda concerned whether the [email protected] output from the custom adapter could damage the battery.
What you think, guys?
afaik, the 5x cannot accept 9v as it can only accept maximum of 5v?
Maybe the adapter is also capable of [email protected] (15W even less that 16,2W when its [email protected]), but they did not write it on the adapter for some reason
Pretty sure you'll only get the 5V and 1.8A with the type A to C cable since the 5X can't handle the 16.2 watts (9V x 1.8A).
Sent from my Nexus 5X using Tapatalk
Oversemper said:
What you think, guys?
Click to expand...
Click to collapse
It'll say charging rapidly, but my experience is it will say that if it is charging 1.6A at 5V. If you are in the range of 40% to 80% battery it will seem similar to the 1.8A that stock charger will charge at.
However if you are on the 0-40% battery range, stock charger will charge at 2.6A and your charger will likely still be at 1.6A. You'll notice a bigger difference in that range.
This is all at 5V. 5x doesn't do 9V.
sfhub said:
It'll say charging rapidly, but my experience is it will say that if it is charging 1.6A at 5V. If you are in the range of 40% to 80% battery it will seem similar to the 1.8A that stock charger will charge at.
However if you are on the 0-40% battery range, stock charger will charge at 2.6A and your charger will likely still be at 1.6A. You'll notice a bigger difference in that range.
This is all at 5V. 5x doesn't do 9V.
Click to expand...
Click to collapse
Wrong))
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
UPDATE:
So it was 19% at 17:58 and at 19:01 it is 70%. Looks pretty rapid for me.
Oversemper said:
Wrong))
View attachment 3861653
View attachment 3861654
UPDATE:
View attachment 3861727
So it was 19% at 17:58 and at 19:01 it is 70%. Looks pretty rapid for me.
Click to expand...
Click to collapse
If you want to say "wrong" then you should post 0-100% charge times using original charger then post 0-100% using your new charger. Preferably you should post the log file of charging rates for both tests.
The actual test you want to perform is 0-40% using original charger, then 0-40% using the new charger. This will have the most noticeable difference between "Charging rapidly" on the original charger on "Charging rapidly" on the USB A to C charger.
In this battery range, original USB C charger will do 2.6A (around 24min to charge 0-40%)
Your new USB A to USB C charger will do around 1.6A (around 40min to charge 0-40%)
From 40%-80% original will do around 1.8A (around 36min to charge 40-80%)
Your new USB A to USB C charger will do around 1.6A (around 40min to charge 40-80%)
From 80-100% they both charge around the same rate.
So we are talking around 20min difference from 0-100% but 16min of that difference happens from 0-40%. Many people would consider this "fast enough", especially since "not" "Charging rapidly" means you are charging at .5A which is roughly 1/3 the rate (3x longer than USB A to C "Charging rapidly" in the 40-80% range)
"Charging rapidly" using USB A to C is obviously "faster" than not "Charging rapidly", however it isn't as fast as "Charging rapidly" using the original charger, especially in the 0-40% range, but less so in the 40-80% range.
Since you are saying I am "wrong" you should post your log files of the charging rates for the original charger and your USB A to C charger.
You can see the charge log rates from 50-90% I posted here for reference (those were performed using two 5x units with exact same software, charging side by side, both said charging rapidly, one was original and another was USB A to C):
http://forum.xda-developers.com/nex...d-charging-t3372898/post67480998#post67480998
Oversemper said:
So it was 19% at 17:58 and at 19:01 it is 70%. Looks pretty rapid for me.
Click to expand...
Click to collapse
That's not 5V/3A charging speed like the stock charger. I get 15% to 85-90% in 60 minutes. Pretty sure that's the 5V/1.8A charging speed I was guessing it to be. My Samsung 5V/2A charger paired with a Type A to Type C cable gets about the same percentage as what you got.
Sent from my Nexus 5X using Tapatalk
I got it, guys! And, @sfhub, I didn't mean any offence by saying "wrong", I just thought that you meant that the words "rapid charging" was not going to show up at all in the range 0-40%, that it was going to be a slow charging just like from a PC usb port. So, anyway, now I'm sure that this charger won't do any harm to the phone. Thanks!

Categories

Resources