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Charger provides 1000 mA, yet phone only takes 500.

Hi,
I bought a wall charger for my N1 today. I was searching for one with 1000 mA output so the phone would charge twice as fast, but after having it on for a long time and seeing that it was only 22% charged, I looked at the battery status and it said "USB". I unplugged it, plugged the stock adapter and it said "AC", and started to charge at the usual speed.
Is there a way to have wall chargers that are NOT the ones provided by HTC charge at a normal speed? thanks!

Interesting... it happens the same thing with an iPhone charger, which have the same output characteristics as the stock charger. I never thought looking at the battery status

FWIW, you can easily see if your phone is charging fast or slow by installing the quick system info app (AC=fast, USB=slow).
I'm using the 1000 mA charger with the USB to micro USB cable that came bundled with the phone. Might it be the cable limiting the power?

I've been trying to figure this out too...

I bought a USB car charger to charge my phone in the car whilst driving.
However even with my phone on standby it still loses power.... I don't know whether it's because I'm using the USB cable or the charger is inferior.
It is rated a 1000mA (the charger).

I bought the HTC car charger from expansys.. bit costly at around £20 for a charger but it works perfectly for me. Drove 4 hours with copilot running, and battery remained perfectly charged

As well as the stock charger, I often use a pikie USB charger with a Nokia micro USB cable... phone reports an AC charger in use.

Great USB cable for full charge from PC

I picked up this cable at bestbuy last weekend before a camping trip to use in with my usb charger in the car. I got outside and noticed that while using it it showed up as an ac charger. So far, every PC ive used it on recognizes it as an AC adapter and therefor charges at full power. I had seen an earlier thread about a way to accomplish this, and i know it isnt done via a hack, but if you have 20 bucks, you have a solution to the problem.
http://www.bestbuy.com/site/olspage...p=&qp=&list=n&iht=y&usc=All+Categories&ks=960
Just noticed this should prob be put under accessories, but it didn't feel like the right spot for it. Mods, if it belongs there, please move it.
Thanks,
replaced link as links with prices from bestbuy do not seem to work. The item is the usb cable./
Added pics of a standard usb plug charge and the one i mentioned. You can see the grey rocketfish cord shows up as AC

linky no worky.
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wow, it doesn't work for me either, give me a sec and ill look it up another way. It is the Rocketfish usb charger with mini adapter.

There is no difference in charge time between computer usb and wall charger usb.

apristel said:
linky no worky.
Click to expand...
Click to collapse
Try it now, wouldn't let me copy pasta a link straight to the product. Click the link above, and its the second usb cable in the third row...can't miss it. Only downfall is its only 4 ft, but..

Bielinsk said:
There is no difference in charge time between computer usb and wall charger usb.
Click to expand...
Click to collapse
well please disregaurd my post, i was under the impression a standard usb cable plugged into the pc pulled 500mw and while in the ac charger, 1000mw or 1W.

i thought there was a difference in time, because it seems to take all day to charge from pc. charges alot faster from the ac adapter.

Bielinsk said:
There is no difference in charge time between computer usb and wall charger usb.
Click to expand...
Click to collapse
I hate to be the one to break this to you, but you're incorrect. First, a computer's USB port only has to put out 500 mA (that is the spec) - the HTC wall charger puts out 1 A (that's 1000 mA) (EDIT Thought I would add that these are both @ 5 V, so you have 2.5W or 5W of power...Power, current, and voltage are not interchangeable /BSEE lol). Second, the phone can tell when it is charging from the stock charger and when it is charging from a non-OEM 1000 mA charger or a 500 mA charger / USB port (it will say charging via AC or USB on the battery status page in the About Phone page of Settings).
So to the OP what you're saying is, this cable makes the phone think it's charging via it's AC charger? Have a picture? (not a screenshot, a picture of the phone screen showing AC while plugged into this charger).

TorxT3D said:
i thought there was a difference in time, because it seems to take all day to charge from pc. charges alot faster from the ac adapter.
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Click to collapse
It does, i was just being sarcastic. The above mentioned cable will allow you to pull full draw from your usb port on your pc.

phobos512 said:
I hate to be the one to break this to you, but you're incorrect. First, a computer's USB port only has to put out 500 mA (that is the spec) - the HTC wall charger puts out 1 A (that's 1000 mA). Second, the phone can tell when it is charging from the stock charger and when it is charging from a non-OEM 1000 mA charger or a 500 mA charger / USB port (it will say charging via AC or USB on the battery status page in the About Phone page of Settings).
So to the OP what you're saying is, this cable makes the phone think it's charging via it's AC charger? Have a picture? (not a screenshot, a picture of the phone screen showing AC while plugged into this charger).
Click to expand...
Click to collapse
Thanks for that, i try hard not to be a **** to people, but you handled it quite well. I will add a screenie to the front page shortly. I had made a custom cable myself and removed the two inner pins (data+ and -) to achieve this purpose. But keep in mind, when using this usb cable i posted, you can not sync to your pc-it will only charge-hence the fact my battery profile shows ac charger when using it. Give me a little to get to a camera to take a pic of the cable and a pic of the battery profile.

added pics to the first post

Computer USB can only output a certain amount of power, it isn't going to increase power with a cable.
I use Juice Plotter to see exactly what my battery life is, and how long it will take to charge. There is no difference in the charging time between USB and Plugged in.
Now on USB it will take longer because the screen is off and I am normally fustsing with it a lot, where when it is plugged in, I am not touching it at all and normally shut the screen off.
So even if a USB puts out 500mah and a wall charger puts 1000mah, I don't believe the phone has any type of switch to its micro USB to allow it to sense the mAh and adjust the charge. Else I would think your screen shots would show different numbers.

Bielinsk said:
Computer USB can only output a certain amount of power, it isn't going to increase power with a cable.
I use Juice Plotter to see exactly what my battery life is, and how long it will take to charge. There is no difference in the charging time between USB and Plugged in.
Now on USB it will take longer because the screen is off and I am normally fustsing with it a lot, where when it is plugged in, I am not touching it at all and normally shut the screen off.
So even if a USB puts out 500mah and a wall charger puts 1000mah, I don't believe the phone has any type of switch to its micro USB to allow it to sense the mAh and adjust the charge. Else I would think your screen shots would show different numbers.
Click to expand...
Click to collapse
Every windows mobile phone ive ever used could be manipulated to allow the usb port to pull 1000mw. It is a hack and there is work on finding it in the android system. I am hoping this cable bypasses that and if i can find any program that shows charge current, i can know for sure. Android os uses parameters to decide how much current to pull as does windows mobile.

Bielinsk said:
There is no difference in charge time between computer usb and wall charger usb.
Click to expand...
Click to collapse
Then why does my EVO take twice as long to charge when connected to my laptop, smart guy?
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Sent from my HTC EVO 4G using Tapatalk Pro.

Impossible to charge sg2 in car

Hi all, just came 3 days ago from an htc hd2, and so far I am more than happy with it.
I have only one complaint and maybe you guys will help me sharing your experience : I can't charge this phone in my car while using gps.
It seems that the power adapter is not powerful enough to charge the phone screen on.
The car charger has a 5v 1000ma output, more than the regular wall charger provided by Samsung and it was working well before with my HD2 so I have no clue about this problem.
Did you experience that issue too, else can you share what car charger do you use?

try to buy new standard car charger with micro plug.. 13 eur and you will be saved..
Sent from my GT-I9100 using XDA App

Charger doesn't matter unless the phone is dropping into USB charging mode - phone limits to around 600-650 mA by default.
Custom kernels can bump this limit up for I9100 users. I777 users are screwed - we've got a crippled charger chip.

I had the same problem, I used the samsung one, useless, so I used my iPad charger, which is 2A, and charges the iPad quick, still useless. We drove from Bathurst NSW, down to Melbourne, about 10 hour drive, plugged in all the way using GPS, and about an hour from home, the connect to charger warning came on!! So once I stopped GPS, it started taking charge. Looks like when the phone is in use, it draws more then it takes charge, plus I read somewhere on here the phone is limited on the charge it takes, so using the 2A does nothing different then the stock 500mA charger.

I always had this problem with my Nexus One, although they are different phones, the problem is the same, uses more power then it can recharge in USB mode.
After trying 3 or 4 different charges I remember that I found one ultra-cheap 'made in taiwan' from a street seller that worked very well.... so it's kind of a lucky shot!
good luck!

Im using a genuine Samsung SGS2 charger and I can charge and run Sygic just fine. I started my journey with 80% and 40mins later I was up to 91% when I stopped and got out. (not in aeroplane mode..)

Very interesting feedbacks... So that confirm that is clearly not a matter of output amperage power.
It is now the same problem on the galaxy tab 10.1, for quickly charge this tab you need the Samsung compatible usb adapter.
It can be likely with a tab bringing a proprietary plug, but I didn't thought it will be the same with a Samsung phone bringing a regular micro usb plug. Quite frustrating and disappointing!
I will search around a micro plug car charger as suggested by redzion, but actually I don't clearly see the difference with my usb charger + a micro usb cable.

Double post, sorry.

If I use the usb cable from my cd player I have the same problem but if I use the official Samsung car charger Ithe only problem I have is the phone getting stupid hot
Sent from my GT-I9100 using xda premium

Oh Samsung, when you will understand?!

Samsung DOES follow the USB charging standard - it goes to its highest current setting when a charger that follows the standard is connected.
Note that iPad/iPhone chargers do NOT follow the standard - Samsungs will treat these as USB hosts and limit to 450 mA instead of 600-650.
Modified kernels can increase both of these values on I9100s.
The only thing Samsung really did **** up is counting screen/CPU current usage against the charge current limits - that's just stupid.

So the charger has smarts. On the i9000 factory chargers, the data pins were bridged. Bridging these pins manually on a USB cable when connecting to a USB source (such as a PC) enabled full current charging. You can see this in Settings -> About; it will say either USB or AC charging.
Do you think this is the case with the i9100?
I don't condone testing this theory on your i9100. Increasing the max current via custom ROM may be a safer solution.

I had the same problem. Two things fixed it for me:
1) I bought this charger: Sony Ericsson AN300 Micro USB 10€
2) I am using a custom kernel now

Any charger that is rated at 1000mA or more (per port) will do just fine. The problem is the cable - you need a quality microUSB cable, or it won't provide all the juice you need. I had the same issue, and I swapped three chargers until I found the real culprit.
Try with the charger you have now and the mUSB cable that was in the phone box - it should work well with that one.

I just press the power button to turn the screen off. when i need the sat nav i press the power and it still tracks you so there is no delay. With the screen off it does charge.

same problem

Duffman19 said:
I just press the power button to turn the screen off. when i need the sat nav i press the power and it still tracks you so there is no delay. With the screen off it does charge.
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Click to collapse
You are right, but even if it is better than nothing the charging time is still a big problem.
Yesterday I drove for at least 40mn phone off. Arrived to destination, I turn the device on: it charged only from 0 to 5%
I would like to test the mariusi theory concerning the Samsung micro usb cable, unfortunately on my SgsII box I just have a wall charger, no a microusb-usb cable.
Entropy512 said:
Samsung DOES follow the USB charging standard - it goes to its highest current setting when a charger that follows the standard is connected.
Click to expand...
Click to collapse
Is there a way to know before buying if the charger respect this charging standard?
I have some cheap usb chargers here and no one is a fast as the one provided by Samsung.
Entropy512 said:
The only thing Samsung really did **** up is counting screen/CPU current usage against the charge current limits - that's just stupid.
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Click to collapse
Maybe for safety purpose? Gps phones can become very hot behind the car glass.

Samsung are trying to "encourage" you to buy only their official accessories. To do this they've wired something differently in their chargers and cables. This "problem" exists on the Galaxy Tab too and can be solved with this adapter...
http://www.ebay.co.uk/itm/USB-car-w...ccessories&hash=item2c5c07736b#ht_3084wt_1163
It's cheap and turns a trickle charge into a full charge. I don't know the specifics of what they've done, but their USB charging just isn't the same as most others manufacturers.

Archer said:
It's cheap and turns a trickle charge into a full charge. I don't know the specifics of what they've done, but their USB charging just isn't the same as most others manufacturers.
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Click to collapse
Great find.

Pretty sure it just bridges the data pins.

Galaxy S4 & Prolonged Navigation Use

I own a Galaxy S2. I have tried it using for navigation many times only to find that the battery discharges fully within 2 hours even if the phone is connected to a car charger. I used to think may be its because my car charger doesn't provide enough current to maintain the charge. But recently I found out the culprit. After around 20 minutes of use, the phone battery starts heating up, and it stops charging. I verified this with CPU-Z. It clearly shows battery overheated, power supply connected and not charging.
I was wondering if S4 also has similar issue. Has anybody used it for more than 2 hours with Google Navigation continuously while connected to car charger?

unni_kmr said:
I own a Galaxy S2. I have tried it using for navigation many times only to find that the battery discharges fully within 2 hours even if the phone is connected to a car charger. I used to think may be its because my car charger doesn't provide enough current to maintain the charge. But recently I found out the culprit. After around 20 minutes of use, the phone battery starts heating up, and it stops charging. I verified this with CPU-Z. It clearly shows battery overheated, power supply connected and not charging.
I was wondering if S4 also has similar issue. Has anybody used it for more than 2 hours with Google Navigation continuously while connected to car charger?
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Click to collapse
The most I have used it for is about an hour and half, and while the phone did heat up, it did continue to keep charging while connected to my in-car charger (just a cheap one). I can't remember whether the charger was able to keep up with the discharge though, I think it did. I was driving in bright sunlight, so I had screen brightness on max throughout that time.

.Astiak said:
The most I have used it for is about an hour and half, and while the phone did heat up, it did continue to keep charging while connected to my in-car charger (just a cheap one). I can't remember whether the charger was able to keep up with the discharge though, I think it did. I was driving in bright sunlight, so I had screen brightness on max throughout that time.
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I've found that the USB cable can have a big impact on the charging current. I had the same problem with my car charger not keeping the phone charged, even though I was using a 2A charger. When I changed the USB cable I managed to quadruple the charging current (from 300ma to 1200ma) and solved the problem (I measured the charging current using the Galaxy Charging Current Lite app).
HTH

itm said:
I've found that the USB cable can have a big impact on the charging current. I had the same problem with my car charger not keeping the phone charged, even though I was using a 2A charger. When I changed the USB cable I managed to quadruple the charging current (from 300ma to 1200ma) and solved the problem (I measured the charging current using the Galaxy Charging Current Lite app).
HTH
Click to expand...
Click to collapse
In my case, I believe it was not because of the charging current or cable. I was trying with a car charger capable of charging a laptop, using the wall charger and cable which came with the phone. When the mobile stopped charging, I checked in CPU-Z app. The app was clearly showing status as "power supply connected, not charging and battery overheated". If I unplug the USB cable and connect it back, it will start charging again!
To make sure that I didn't miss anything, I will try with the app you suggested.

Just to update: The Galaxy Charging Current Lite doesn't seem to work with my Galaxy S2. It doesn't show any value.

[Q] original cable not charging fast enough

I just realized my original cable doesn't charge my phone fast enough and I drain battery while using it. I swapped for a Motorola micro usb, and it works.
I downloaded an app to show mA rate, and with original cable it goes at about 360 or 450 mA. When I use Motorola cable it goes to 1900mA and proceeds to raise battery %.
What can cause this? The plug looked little dusty, I stuck a twist tie in and out (like on bread bad) and tried to clean it, but there's no difference.
Also there's no pin 4 on my cable, the ID pin I think. That seemed to be common for Samsung, so guys, what do you think caused cable to go bad, or am I missing something?
Also I use BlackBerry charger it says 800mA, this will charge it.
Thank you.

Could have just gone bad. Batteries go and all the time. I just had o swap out my sisters amdnmine for new ones because they wouldn't hold a charge for more than 6-7 hours. So its possible you just had a faulty one. Btw the phone is meantnto charge slowly. The faster your battery charges usually means the battery is giving out. But in your case you found out it was the data cable.

Could u tell me which app you used to show mA charge rate.

farookh said:
Could u tell me which app you used to show mA charge rate.
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Click to collapse
Yeah sure.
Galaxy charging current lite
https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent.free

Its your wall mount. Try plugging the original USB into the moto box. It should charge fine. If not try the obvious (original box to moto USB)
Happened to me on my s3 and my s4. Sucks.. i know..

Daisflaque said:
Its your wall mount. Try plugging the original USB into the moto box. It should charge fine. If not try the obvious (original box to moto USB)
Happened to me on my s3 and my s4. Sucks.. i know..
Click to expand...
Click to collapse
No pretty sure it's the cable. Used cable on 2A nexus charger, and it only did 300 mA.. I wonder where I can buy a good 4 or 5 foot usb cable for not too much money? The default usb cable length (3ft) is usually too short to reach the outlet for me. =(

I just googled this.. cheap 6ft samsung micro usb.. great prices from local places like walmart and amazon.
Although you might wanna add 2000mah. Lol

300Ma means your USB cable has no Power wire and you are just getting power from Data wires
460Ma is what you would get from a Data USB port
1A is what you get with a good USB cable and Charging Data port
1.2-1.9A is what you get with a good USB cable and Wall/car charger that can provide 2.1A.
good USB cable= 2core for power with 24AWG wire size and 2 Data wires at 28AWG.
Not longer than 6feet