Database Users

Faster USB Charging?

I remember on my WinMo phones there was a program to speed up the charging through a USB port. Anyone know of a similar app, hack, what have you for our Heros?

all that ever got me was an overheated phone. and defective batteries

Negrito said:
I remember on my WinMo phones there was a program to speed up the charging through a USB port. Anyone know of a similar app, hack, what have you for our Heros?
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Click to collapse
you could try a wireless charger, or use the normal wall charger or get a 3rd party battery.
I use a 3rd party battery, and my phone charges from Dead, to full in under 2 hours. i think my brand battery is a radioshack one but i dont remember, and im too lazy to look lol

If the phone detects that it's hooked to a USB port, it'll charge more slowly because the typical computer port will only output 500 mA. A wall charger typically does a full amp.

codelockdown said:
you could try a wireless charger, or use the normal wall charger or get a 3rd party battery.
I use a 3rd party battery, and my phone charges from Dead, to full in under 2 hours. i think my brand battery is a radioshack one but i dont remember, and im too lazy to look lol
Click to expand...
Click to collapse
No thank you, i dont need something else to carry around. I work next to a computer. it just sucks that if my phone is near dead in the am when i arrive to work it will have to be tethered to the computer most of the day to fully recharge.
kynetx said:
If the phone detects that it's hooked to a USB port, it'll charge more slowly because the typical computer port will only output 500 mA. A wall charger typically does a full amp.
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Click to collapse
yes, thank you. i know. that's why i am asking for a program to trick the device into believing its always the wall charger while its plugged into anything with that program running.

Negrito said:
yes, thank you. i know. that's why i am asking for a program to trick the device into believing its always the wall charger while its plugged into anything with that program running.
Click to expand...
Click to collapse
There is no point in "tricking" the device to think it's the wall charger because what you want is the phone to charge up, not to beleive it's charged up when it's not. The usb port will not output more than 500mA. The phone will only charge as fast as 500mA will get you, no matter what tricks we try to pull on them.

daveli said:
There is no point in "tricking" the device to think it's the wall charger because what you want is the phone to charge up, not to beleive it's charged up when it's not. The usb port will not output more than 500mA. The phone will only charge as fast as 500mA will get you, no matter what tricks we try to pull on them.
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Click to collapse
Actually, most USB 2.0 ports can unofficially support up to 1000mA (which is indeed out of spec), with the only limitation from the device itself which when in spec will not draw more than 500mA. This is why no2chem's Fastcharge worked on WinMo phones, by increasing the maximum limit on the device.

Rootwind said:
Actually, most USB 2.0 ports can unofficially support up to 1000mA (which is indeed out of spec), with the only limitation from the device itself which when in spec will not draw more than 500mA. This is why no2chem's Fastcharge worked on WinMo phones, by increasing the maximum limit on the device.
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Click to collapse
Thanks for the clarification, It's good to learn something new every day

Rootwind said:
Actually, most USB 2.0 ports can unofficially support up to 1000mA (which is indeed out of spec), with the only limitation from the device itself which when in spec will not draw more than 500mA. This is why no2chem's Fastcharge worked on WinMo phones, by increasing the maximum limit on the device.
Click to expand...
Click to collapse
Thank you so much for this post, i couldnt remember no2chem's nick to save my life. I wonder how he feels about dev in android.

daveli said:
There is no point in "tricking" the device to think it's the wall charger because what you want is the phone to charge up, not to beleive it's charged up when it's not. The usb port will not output more than 500mA. The phone will only charge as fast as 500mA will get you, no matter what tricks we try to pull on them.
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Click to collapse
I don't know where you're coming from, but the phone will indeed pull more current when it detects it's on a wall charger. I specifically remember seeing it in the manual.

Has anybody heard anything new on this matter, I really hate not being able to charge at 1A from a computer USB anymore. 500mA is pretty much useless, especially in constant usage, it pretty much just maintains the current %.

from less than 10% to 100% in about 30 minutes when plugged into the wall...turn your phone off while charging!! itll charge so much faster!!

This was specifically about usb....

I seem to remember hearing you can tweak some usb wires (I guess remove the data pins) so the phone thinks it's on AC but I'd want to have connectivity as well as the swift charging. Otherwise I'd have to have two cords on me, though I wonder if the phone charges "AC speed" while off (since there's no mind to talk to the PC's OS)

Negrito said:
I remember on my WinMo phones there was a program to speed up the charging through a USB port. Anyone know of a similar app, hack, what have you for our Heros?
Click to expand...
Click to collapse
yup, i remember that too, it was called fast charge.

iviyth0s said:
I seem to remember hearing you can tweak some usb wires (I guess remove the data pins) so the phone thinks it's on AC but I'd want to have connectivity as well as the swift charging. Otherwise I'd have to have two cords on me, though I wonder if the phone charges "AC speed" while off (since there's no mind to talk to the PC's OS)
Click to expand...
Click to collapse
I know this does't work, as I have a cable with no data pins (it's a cheapy charge cable only) and it's still slow on a pc to charge.

Get a USB 3.0 port.

swears11 said:
Get a USB 3.0 port.
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ummm... you mean you would have to buy a whole new mobo with usb3.0 support.

I have a belkin travel power surge protector with 3 outlets and 2 usb ports on it. The phone, when plugged into it, doesn't detect that it is plugged into AC power and just charges at USB speeds. Anybody know why? Will it only charge at AC speed if it detects the HTC supplied Ac adapter?

danaff37 said:
I know this does't work, as I have a cable with no data pins (it's a cheapy charge cable only) and it's still slow on a pc to charge.
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Click to collapse
I have a cheapy cable too and that might be why it's still slow. I don't use the cable anymore because my TP used to charge at like 200mAh with it.
swears11 said:
Get a USB 3.0 port.
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Click to collapse
But the problem here is with the software not hardware lol, all someone has to do is change the value of "when connected to computer: Charge 1A" instead of "when connected to computer: Charge 0.5A" (simplified of course)
gunnyman said:
I have a belkin travel power surge protector with 3 outlets and 2 usb ports on it. The phone, when plugged into it, doesn't detect that it is plugged into AC poer and just charges at USB speeds. Anybody know why? Will it only charge at AC speed if it detects the HTC supplied Ac adapter?
Click to expand...
Click to collapse
Because it was a stupid idea to ever limit the charge speed. lol
If only I knew how to program or to edit code, I'd so fix this for all of us >_<

USB Fast Charging?

Came from a TP2 and I could charge via USB at around 900 mA using fast charge driver.
Since I am a complete Android n00b, and an EVO n00b I have two questions.
1. Are there any apps out there that can show you how fast the battery is charging and discharging? I had one called Battery Monitor in WM, and I want an Android version of that.
2. It appears that USB charging is quite slow. Can anyone confirm the speed at which this phone charges via a USB port?
3. Is there a way to make this faster?
TIA!!

1. Are there any apps out there that can show you how fast the battery is charging and discharging? I had one called Battery Monitor in WM, and I want an Android version of that.
2. It appears that USB charging is quite slow. Can anyone confirm the speed at which this phone charges via a USB port?
3. Is there a way to make this faster?
A 1. I don't believe there is one (someone correct me if wrong), but there are apps to monitor your battery percentage.
A 2. Not sure, shouldn't be too long, how long is it taking yours?
A 3. I don't believe so.

Hero's Hero said:
1. Are there any apps out there that can show you how fast the battery is charging and discharging? I had one called Battery Monitor in WM, and I want an Android version of that.
2. It appears that USB charging is quite slow. Can anyone confirm the speed at which this phone charges via a USB port?
3. Is there a way to make this faster?
A 1. I don't believe there is one (someone correct me if wrong), but there are apps to monitor your battery percentage.
A 2. Not sure, shouldn't be too long, how long is it taking yours?
A 3. I don't believe so.
Click to expand...
Click to collapse
Thanks...Not sure how long it takes as I havent had the phone too long. I know while plugged into my computer last night it wouldn't charge very well.

Computers have much lower power than a wall socket. If you want to charge the EVO fast use the wall plug. Anyone who uses a Mac and the wired keyboard should know what I am talking about.

Please search before posting...
http://forum.xda-developers.com/showthread.php?t=591041

A USB port provides 500ma of power, you can get micro USB cable that will Y off and plug into two USB ports, providing 1000ma of power.

Grims said:
A USB port provides 500ma of power, you can get micro USB cable that will Y off and plug into two USB ports, providing 1000ma of power.
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Click to collapse
Every computer I owned charged my TP2 at around 800-900 mA as long as the fast charge driver was on the phone.
So I know for a fact that it's possible. It's limited by the phone, not the USB port. Appreciate the reply, but did you read Negrito's link?
And Negrito, I did search... This forum.... No hits. I see the link you provided was in the Hero forum. I didn't realize that the fast charge USB issue was affecting other Android phones as this is my first.

supdawg said:
And Negrito, I did search... This forum.... No hits. I see the link you provided was in the Hero forum. I didn't realize that the fast charge USB issue was affecting other Android phones as this is my first.
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Click to collapse
My bad broseph, totally forgot im still subscribed to Hero threads. I just switched to the Evo Launch day.
Its not really an issue per se as that's how all phones normally operate. On WinMo we just got spoiled my No2Chems hack. Anyone know if No2Chem made the jump to Android?
I have seen a lot of familiar names on the Evo forum, like OMJ, and Caulkin!!! I cant wait until someone comes up with an untethered root option and how to bypass the NAND cause I know the ROMs are just going to be simply amazing.

Was digging around in the custom menus, can't remember which one, but one of the ones that you type ##numbers# and enter your MSL and there was a check box for USB charging. Mine was unchecked for some reason. I left it alone but wonder if that makes a difference?

I've tested a few charging scenarios and can tell you that using a wall charger that outputs 1000 ma will help speed up the charge.
These from Monoprice work very well:
http://www.monoprice.com/products/product.asp?c_id=103&cp_id=10311&cs_id=1031106&p_id=6767&seq=1&format=2
want the same thing for the car?
try this one.
Here's the link to a micro usb cable at monoprice for $1.20.
There's a nice Rosewill 4 port charger, that will output 2000 ma IF you have only one device plugged in. With two devices plugged in, it falls back to 1000 ma (still really good). I have this in the kitchen for the kids to jack their various usb things in for charging.
The thing to remember is that the phone will pull as much as it can (most recent phones can pull between 750 and 1000 ma.) What will cause it to charge slower is not usually a software setting, it's having a port that will only put out 500 ma or less...which is what many computers output.
Sean

there is an option in settings /devolopment for usb charging doesnt ssy what it does though

I don't think mine has taken more than 4-5 hours to fully charge and signal strength isn't the greatest at my house so that probably has an impact on it as well... I've no idea if that's normal for a smartphone or if it's considered slow, I don't think my Sony Ericsson feature phone was any faster but the battery indicator on that thing was wildly inaccurate anyway.
My EVO seems to charge just as fast w/the included HTC adapter as with a generic Philips one I had, as well as one of those retractable cables. I was afraid that cable wouldn't be very well shielded and it wouldn't charge right but it seems fine, I'll only be using it when I travel anyway.

Negrito said:
My bad broseph, totally forgot im still subscribed to Hero threads. I just switched to the Evo Launch day.
Its not really an issue per se as that's how all phones normally operate. On WinMo we just got spoiled my No2Chems hack. Anyone know if No2Chem made the jump to Android?
Click to expand...
Click to collapse
No one has seen nor heard from No2Chem in months... Some people think he may have died

I could charge my Touch Pro 2 in about an hour or two using a standard usb plug on any computer I owned.
Might I add the Touch Pro 2 and the EVO share the same identical battery. The EVO obviously draws more current..... I found while using my EVO while plugged into a computer, it barely charges at all. My guess is its discharging while charging at a very similar rate.

Contrary to what most of you are saying, the ma rating of the charger really makes no difference as the phone (and prior htc phones) will pull <500ma if they detect they are plugged into a computer or non-official charger and 1a if they detect an htc charger (which can even damage 500ma chargers). The way this is detected is through grounding of one of the microusb pins in the official charger (and indeed many generic chargers but not all will be detected this way). Absent this grounding (I forget which pin), it will charge at a slower speed. I know of cheap 500ma chargers which have been caused to smoke by attaching a cable with that grounding fooling the phone into thinking it is an oem charger. Many chargers labeled 1a will charge at the 500ma rate as well.
Also, modern computers are fully capable of outputting 1a of power through the usb port. While the spec indeed is 500ma, with a proper cable (or the fastcharge driver for windows mobile), you can force a 1a power draw without any issues. Cheap usb hubs or cheap usb power ports may run into issues.
I'd love to see a solution for android but I don't think one exists.

Actually the HTC battery Widget will show you if you are on AC (1A) or USB (500ma) charge. You can get this widget from the market (not sure why it is not included in the phone in the first place).
I think that the grounding pin is likely the trick and I will be searching the web to see if I can locate it. I have an older battery pack from APC that can output 1.6A but the only way to get the EVO to charge as if it was on "AC" is to use the HTC plug, and then quickly, before the charge light goes out switch to my alternate source. This seems to trick the EVO into thinking that it is still plugged in to the official charger.
This is of course trickier with my car charger, which has been very frustrating - using the phone for navigation and plugged in via usb usually has the battery draining rather than charging!
I wish there was an easy way to fix this, my old phones always attempted to pull as much current as they needed.

My friend uses a 2A charger for his HTC touch pro 2, and it uses the same battery as the EVO if u guys didnt know.
i havent tried it on my evo, but being its from htc too (and uses the same battery)... id expect it to work with that much current.
I currently use a 900mA one in my car, and i do notice that if i use something less than that i tend to get feedback from the audio jack that connects to my cassette player

Found a discussion on this on the android forums relating to the HTC Desire:
<Too new of a user, system won't let me post the link>
I opened a car charger and shorted pins 2 and 3, and the phone did show charging over AC (2 and 3 are the data pins, 1 & 2 are power). My multimeter was acting up, so I am not sure whether the EVO is actually pulling more current - it does appear to be charging faster.
If you try this make sure of 2 things:
1. You charger is capable of 1A.
2. If you choose to short the pins on a USB cable make sure this cable never gets plugged in to your PC.

Rennat said:
Computers have much lower power than a wall socket. If you want to charge the EVO fast use the wall plug. Anyone who uses a Mac and the wired keyboard should know what I am talking about.
Click to expand...
Click to collapse
I know what you mean! Haha

supdawg said:
Came from a TP2 and I could charge via USB at around 900 mA using fast charge driver.
Since I am a complete Android n00b, and an EVO n00b I have two questions.
1. Are there any apps out there that can show you how fast the battery is charging and discharging? I had one called Battery Monitor in WM, and I want an Android version of that.
2. It appears that USB charging is quite slow. Can anyone confirm the speed at which this phone charges via a USB port?
3. Is there a way to make this faster?
TIA!!
Click to expand...
Click to collapse
For your Q #1 search the market for Battery Indicator, great simple app that gives you a battery percentage and how long you have been plugged in or unplugged.

Charging without Samsung AC Adapter?

I went out of town this week and made sure to grab my USB cable, but left the AC adapter at home figuring I'd just charge off my laptop via usb. Apparently not... I also tried plugging the USB cord into my iPhone AC/usb adapter with no luck. The only thing I've found is that when you turn off the Tab and connect to one of these devices, a green battery indicator will pop up showing that it is charging. Well, after about 16 hours, it made it from 15% all the way up to 48%. Does anyone know any way around turning it off to charge or why it is barely charging when it is off?

Jaydawgx7 said:
I went out of town this week and made sure to grab my USB cable, but left the AC adapter at home figuring I'd just charge off my laptop via usb. Apparently not... I also tried plugging the USB cord into my iPhone AC/usb adapter with no luck. The only thing I've found is that when you turn off the Tab and connect to one of these devices, a green battery indicator will pop up showing that it is charging. Well, after about 16 hours, it made it from 15% all the way up to 48%. Does anyone know any way around turning it off to charge or why it is barely charging when it is off?
Click to expand...
Click to collapse
Well seeing as it has a 7000mAh battery, just about any run-of-the-mill USB charger isn't going to cut it. The amperage would have higher as well. Now i would hazard that an iPad charger (10 watts) would probably work just fine vs an iPod charger.
Your laptop's USB port isn't providing enough juice to charge fully. With the screen off it will only trickle charge and very slowly at that.

You'll need at least 5 Volt 2 Amp chargers.
You can also try this:
http://forum.xda-developers.com/showpost.php?p=14890063&postcount=16
Or this:
http://cgi.ebay.com/190522553195?ru...ee-All-Categories&_fvi=1&_rdc=1#ht_3085wt_905
I've ordered both last week but neither have arrived yet. I'll report back.

You need a 5vdc supply that will provide 2A. 10W, not 5w as the previous post said. That adapter on ebay won't help the charge, it just disconnects the data line so it does not change its mode when connected to a computer. There are a lot of power supplies that will work and even more that won't, just made sure it supplies 2a. If you want to charge off your laptop then you will want a Y adapter similar to what is on usb powered hard drives but even then you will need to use 2 usb 2.0 or 3.0 ports and will provably only get 1a out.
Sent from my GT-P7510 using XDA Premium App

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.
Click to expand...
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.
Click to expand...
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.
Click to expand...
Click to collapse
Great find.

Pretty sure it just bridges the data pins.

[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.
Click to expand...
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