Develop Bugs

Phone charging really slow??

So my s2 has been charging really slow, like today it took like 5 hours to fully charge, and when connected to charger if I'm using it it wont charge very well, like the battery will stay at lets say 20% when im using it and charging it, it might even go down more. it used to charge pretty well even if I was on it. Cuz this be the charger, or is my battery messed up?? Im using the charger that came with the phone.
Sent from Flip's SGS2

Are you charging through a usb port on your computer or ac? If it is with usb port then yes it will charge at a much slower rate. Also if you have a lot of apps running or backround data going it will also cause your charging to slow down some. I would say through usb without any apps open and backround data stopped It would take a few hours to charge say from 20%. Through AC in the same condition probly 1.5 hours. Try to reboot your phone and then plug it in to charge to see if that doesnt speed it up any. If it does then you know you have backround data moving at a fast rate and that would be your reason to slow the charge down.

Yeah I'm charging with the wall charger, not thru usb
Sent from Flip's SGS2

thats pretty weird...have you tried using another usb cable?? maybe the cable is faulty?

Calibrating the battery
elflip88 said:
So my s2 has been charging really slow, like today it took like 5 hours to fully charge, and when connected to charger if I'm using it it wont charge very well, like the battery will stay at lets say 20% when im using it and charging it, it might even go down more. it used to charge pretty well even if I was on it. Cuz this be the charger, or is my battery messed up?? Im using the charger that came with the phone.
Sent from Flip's SGS2
Click to expand...
Click to collapse
You could try calibrating the battery, maybe. To do that, turn the phone off. Charge to full (make sure it's full, by taking it off of the charger and putting it back on...the indicator should read 100% almost immediately when reattached to power).
When the battery is full, with the phone still turned off, remove the battery for about 2 minutes. After 2 minutes, reinsert battery and restart phone.
Battery will be calibrated. This may not resolve the problem of a slow charge, but will clear 'battery memory' which may have been preventing it from charging completely (and, I suspect, may have inhibited charging).
Good luck!

I was using an aftermarket wall charger and had similar results. Switched to the USB/AC converter that came with the phone and all was well.

sean is here. said:
You could try calibrating the battery, maybe. To do that, turn the phone off. Charge to full (make sure it's full, by taking it off of the charger and putting it back on...the indicator should read 100% almost immediately when reattached to power).
When the battery is full, with the phone still turned off, remove the battery for about 2 minutes. After 2 minutes, reinsert battery and restart phone.
Battery will be calibrated. This may not resolve the problem of a slow charge, but will clear 'battery memory' which may have been preventing it from charging completely (and, I suspect, may have inhibited charging).
Good luck!
Click to expand...
Click to collapse
Yes, try Battery Calibration from the market. Only works on rooted devices, and follow instructions.

Battery Calibration
abctilly said:
Yes, try Battery Calibration from the market. Only works on rooted devices, and follow instructions.
Click to expand...
Click to collapse
Actually, one doesn't need an app to calibrate the battery. If you follow the instructions above, the app is unnecessary. And the phone mustn't be rooted

YODA? ^^^^

Hey elflip88, have you found the issue yet?
I have the same problem on my HTC Amaze 4G. It's charging 1% every 3 minutes (adds up to 5 hours)
I'm also using the wall charger...oh damn, I'm starting to think I have a faulty device / battery...
yelp!

For the record Samsung devices are known to be slow at charging so with that considered.... You still shouldn't be at 5 hrs. I would find a battery stats app charge your battery over night and check the chart to see exactly how long it takes to go from 0 - 100. Make sure your batter status is good. Also check the voltage coming into your phone from your charger. There are plenty of battery stat apps in the market that will do this sort of thing. Of course make sure your battery doesn't have water damage of course too lol.
Sent from my SGH-T989 using XDA App

I've had the same problem with mine. But, I can get 1.5 days without charging and moderate usage. Charge it up, drain it, charge it back up then wipe your battery stats in recovery.

This may help if you're using an aftermarket wall charger
If you guys are having issues with slow charging using an aftermarket wall charger, it could be that the phone is charging in a USB state rather than an AC charging state. QuickCharge could alleviate your issues. The cable is inserted between the wall charger and the USB cable that goes to your phone. You can find the product on Amazon. It's the 2nd of 3rd item from the top when you search 'QuickCharge'.

I find that when I fully drain my battery and charge it, it's really slow. Once the phone has enough battery to stay on, I unplugged it and replugged it and it charges normal again.

elflip88 said:
So my s2 has been charging really slow, like today it took like 5 hours to fully charge, and when connected to charger if I'm using it it wont charge very well, like the battery will stay at lets say 20% when im using it and charging it, it might even go down more. it used to charge pretty well even if I was on it. Cuz this be the charger, or is my battery messed up?? Im using the charger that came with the phone.
Sent from Flip's SGS2
Click to expand...
Click to collapse
It's your wifi and your apps using wifi. Turn wifi off while charging. I used to charge 4 hours + on my S2. Reduced to 2 and some change when I turn off wifi.
Also, I struggle to make it through a working day with wifi on. Turn wifi off and I can do 4 days no problem.

audscott said:
I was using an aftermarket wall charger and had similar results. Switched to the USB/AC converter that came with the phone and all was well.
Click to expand...
Click to collapse
I've had the same problems using an aftermarket wall charger.

I old suggest using a different outlet if you haven't done that yet.
Sent from my SGH-T989 using xda

What? Wifi (while connected) users significantly less power than 3g or HSPA+ (4G) data..
Sent from my SAMSUNG-SGH-I727 using XDA

i had that issue once, it had to do with my ROM i imagne... i flashed a new one and i havent had a problem ever since.

i m using this wall charge and use this battery... it is working fine and no problem at all
http://www.ebay.com/itm/Anker-Battery-for-Samsung-Galaxy-S-II-from-T-mobile-
http://www.cellphoneshop.net/hdw179...ccessories&hash=item4ab527cf3b#ht_2001wt_1396

Something's draining my battery faster than it's charging

I have a dock at work that I place my phone onto every day as soon as I arrive. I noticed at about 11 AM today that my phone was showing 72% battery, even though it should have been fully charged when I left this morning at 9 and had been sitting on the charger since 9:30. More annoyingly, it seems to be staying at about that level--it's not moving up at all. If anything, it's continuing to lose charge even as the icon shows it's charging!
I took it to a Sprint store, where they unhelpfully suggested that I have too many apps installed that are draining the battery in the background. I manually stopped most of them, uninstalled some that I don't really use, and put it back on the charger. It's still not going anywhere. I turned the phone completely off for an hour and charged the thing, and it had gained about ten percent (that seems pitiful, but at least it's charging?). It's back on the charger, still not really moving anywhere.
So what are my options at this point? I've never calibrated the battery, so maybe I need to do that. Other than that all I can think is that either the battery is going bad (but I have a feeling Sprint is going to insist "It's still charging" if I take it back to them and refuse to give me another battery), or perhaps the dock is not supplying the right voltage and hence it's not charging fast enough to overtake the power consumption.
What's bugging me is that I haven't installed anything in the past week that should be affecting my power consumption like this. Last week I had plenty of apps installed with GPS and bluetooth always on, and as long as the phone was docked it would eventually reach 100%. Now I have pretty much everything off, several apps I usually have running turned off, and several more uninstalled (including Lookout Security), and the battery is barely making any headway. I keep the screen on to a desk clock (because that's the whole point of a freaking dock), but that alone shouldn't be draining it faster than it can charge.
Any suggestions?

Sounds to me like its not getting enough voltage. When you charge it at home does it charge reasonably fast?
Sent from my SPH-D710 using XDA

I never really monitor it, but I would say so, yeah. All I really check is that it's fully charged in the morning before I walk out the door.
The culprit might be my dock. It says it's designed specifically for the GSII but the cable itself looks to just be your standard USB-to-microUSB dock, other than a little bump at the bottom so that it's clearly aimed for bottom-charger phones like an iphone or SGSII. I suspect it might be supplying less voltage than the charger that came with the phone.
Is there anything I can look at (app or internal setting) that can tell me what kind of voltage the phone is receiving?
EDIT: Should also note that it's sitting on the dock now and it is at least making positive gains on the battery, albeit at maybe 1% every fifteen minutes. I really don't remember it being this slow before. Perhaps the dock's cable is cheap and is just crapping out over time.

USB charging is about half the speed of regular, wall socket charging. Invest in an OEM charger or one that has similar specs to an OEM one.
Sent from my Galaxy S II, AOKP style.

do you have the dock connected to a USB port on a computer/laptop or wall outlet?
USB charges at 150mah while most ac adapters charge at between 750-1000mah.

Well, when I used the my generic LG USB cable it took about 5 hours to reach from 0% to about 40% while shut. So, I changed the cable and viola, charging to full in less than 3 hours while working on it.
So, it seems that the charger is bad quality. Try using the original cable (if possible) or may be the original charger plug.
I guess that's the only solution, because there is no way that the phone is discharging at a faster rate than charging, except when it is connected to an external display. This is the only thing that I encounter where the phone goes dead after a while despite it is connected to the charger...

Yeah, that dock is a POS. I'm not surprised it charges slow as balls too.
Amusingly, my phone has been running on the battery since leaving work for about four hours with the screen off, and it's only at 92%! I must have uninstalled whatever was draining it so quickly.
Thanks, guys.

If you think it's an application draining it, try better battery stats in the market. Might not be the problem but it does help.
Sent from my iPhone killer.

ahmadshawki said:
Well, when I used the my generic LG USB cable it took about 5 hours to reach from 0% to about 40% while shut. So, I changed the cable and viola, charging to full in less than 3 hours while working on it.
So, it seems that the charger is bad quality. Try using the original cable (if possible) or may be the original charger plug.
I guess that's the only solution, because there is no way that the phone is discharging at a faster rate than charging, except when it is connected to an external display. This is the only thing that I encounter where the phone goes dead after a while despite it is connected to the charger...
Click to expand...
Click to collapse
That's right. Use Original cable came with your phone.
I've experienced same thing when I tried to charge my D710 over LG micro usb charger thru AC outlet. The charging indicator was showing flash but actually it was not charging or charging speed was not enough to follow the battery usage.
I charged the phone all the night but in the morning it was empty!
Charging through the original Samsung micro usb cable, it never failed. But charging thru LG micro usb failed couple of times.
You can easily check a couple of things -
try to connect micro usb cable to your PC and set the USB mass storage mode.
If we use LG micro usb over samsung phone, it's not perfectly fit and data communication frequently fails. More importantly, Don't even try to odin your phone using LG micro usb.
It's not the issue of charger. It's the cable issue.
Do not use LG Micro USB cable for data communication, but if you want to use for charging, be sure that you hear the connection sound from the phone. If there's no connection sound, the battery won't last long even battery charging status shows the flash.
Hope this help.

Anyone else having problems with extremely slow charging?

When I first got this phone I noticed it charged pretty slow. 5 hours to get to full from 0% but it then got a lot worse. Over night it would only charge from like 18% to 41 so I got a new charger and wall adapter and that seemed to fix it for a couple days but now it is charging slow again. From 70% to 100 it takes about 6-7 hours. Anyone else experiencing this?

The only time I've heard of that happening is when people fail to 'condition' their lithium battery properly before normal use.
In other words, upon getting your new phone, and/or battery, you're suppose to allow your battery to fully discharge and then fully recharge 3-5 times to condition your battery before plugging it back in half way through discharge.
It's usually what the carrier sales clerks are suppose to tell you when purchasing a new smartphone.
Here's a simple article on the subject:
http://www.ehow.com/how_4797458_condition-cell-phone-battery.html
Sent from my SPH-L710 using xda app-developers app

drewmonge said:
The only time I've heard of that happening is when people fail to 'condition' their lithium battery properly before normal use.
In other words, upon getting your new phone, and/or battery, you're suppose to allow your battery to fully discharge and then fully recharge 3-5 times to condition your battery before plugging it back in half way through discharge.
It's usually what the carrier sales clerks are suppose to tell you when purchasing a new smartphone.
Here's a simple article on the subject:
http://www.ehow.com/how_4797458_condition-cell-phone-battery.html
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I never had/has/have doing it. And I dont have battery issues.
I think the battery calibration/cycle..etc is just a myth.
Go to the store and check for warranty.
Sent from my SPH-L710 using Tapatalk 2

Could it be a rouge app causing it to take so long to charge? I noticed today Google maps was using a lot more of the battery than usual. Almost as much as the screen. I tried force stopping but it just starts right back up again. Any ideas on how to fix the maps app? I have a feeling that is what is causing it.

I have this problem. It is very annoying and I have no idea what causes it. It doesn't happen all of the time though.

rbtrucking said:
Could it be a rouge app causing it to take so long to charge? I noticed today Google maps was using a lot more of the battery than usual. Almost as much as the screen. I tried force stopping but it just starts right back up again. Any ideas on how to fix the maps app? I have a feeling that is what is causing it.
Click to expand...
Click to collapse
Just sounds like a bad install of something. I would do a factory reset through the stock recovery, and make sure to wipe dalvik cache.

My phone has started charging slowed as well, but mostly when connected to the computer. I made sure my usb ports were set to not allow the computer to shut them off to conserve power and it seems a bit faster. As far as charging and discharging ect ect I don't do that and never had a problem with slow charging and even the couple of times I tried it, the battery life never really improved. So think it is needed and some think it is a waste of time.

Charging via a computer USB port will always be slow when compared to the higher current capacity of the included AC charger. Computer USB ports have a lower current rating.
Make sure your using the charger that came with the phone, not all chargers are created equally.
There's also been some talk about the quality of USB cable being used, but I haven't found that myself yet.

Little bit of info...
I have tried numerous chargers while at work here (Technician) and there are some issues.
Samsung is funny on which chargers it accepts. Very funny.
1. Stardard charger that comes with the device will charge best. (Obvious I know) Using wall charger. (Full charge in 3.5 to 4 hours from 1%)
a. Using USB end plugged into PC while charging takes typically from my tests double the time to charge. (I'm guessing that data connection to PC is slowing the charge. (Full charge in 6 hours from 1%)
2. 3rd Party Generic charge cables (usb cable only) still charges device however stardard power draw is lower and does not charge in a decent time period.
a. Some 3rd Party usb cables plugged into a pc showed charging however they did not keep enough of a draw to actually charge my phone. I lost battery instead of gaining.
3. LG chargers did nothing for me. Couldn't get a decent charge.
Motorola chargers gave me the best charge besides the original.
Chargers with replacement tips... what can I say. They didn't seem like a good idea and weren't. I had too many issues and at times had some overheating issues. Luck of the draw me thinks.
3rd party wall chargers were hit or miss. A few did seem to give me a decent charge, others gave me a very slow trickle charge taking anywhere up to 8-9 hours for a full charge from 1%
All in all... it's a crap shoot using 3rd party cables. It's all based on voltage output and Samsung likes to change things alot. You will still get a charge but who knows the length of time it will take.
Oh and car chargers... typically only good for keeping it at the same level you plugged it in at for short drives. Long drives obviously work much better.
Hope this helps.

About charging: I have noticed that micro USB cable that come with S3 is really bad - it is loosing a connection to PC,and, beside that, I have noticed several times slow phone charge... Accidentally went to settings- battery - when I was on AC charger and saw in settings that phone is actually charging in USB mode!!! Wtf??? Disconnect usb from bottom end (at charger side) and reconnect and then on phone says " charging - AC" ... So,conclusion is that you check your phone charging status when you put on charger,maybe it is charging in USB mode and because of that phone is charging slower than it should on regular AC power.

The only battery issue that i have noticed is when i use my computer to charge it takes forever but when i use the factory wall plug and cable it charges quickly with no issues

Excellent post supercholo. Really helpful. I was starting to think my phone was broken.
Anyone got any experience with using an ipad charger on an sIII. I know an ipad wants a lot of power to charge.
FYI These are the voltages listed on my chargers;
Apple ipad1 charger 5.1v 2.1a
SAMSUNG s3 wall charger 5v 1a
Samsung Galaxy i9000 wall charge 5v .7a
supercholo said:
Little bit of info...
I have tried numerous chargers while at work here (Technician) and there are some issues.
Samsung is funny on which chargers it accepts. Very funny.
1. Stardard charger that comes with the device will charge best. (Obvious I know) Using wall charger. (Full charge in 3.5 to 4 hours from 1%)
a. Using USB end plugged into PC while charging takes typically from my tests double the time to charge. (I'm guessing that data connection to PC is slowing the charge. (Full charge in 6 hours from 1%)
2. 3rd Party Generic charge cables (usb cable only) still charges device however stardard power draw is lower and does not charge in a decent time period.
a. Some 3rd Party usb cables plugged into a pc showed charging however they did not keep enough of a draw to actually charge my phone. I lost battery instead of gaining.
3. LG chargers did nothing for me. Couldn't get a decent charge.
Motorola chargers gave me the best charge besides the original.
Chargers with replacement tips... what can I say. They didn't seem like a good idea and weren't. I had too many issues and at times had some overheating issues. Luck of the draw me thinks.
3rd party wall chargers were hit or miss. A few did seem to give me a decent charge, others gave me a very slow trickle charge taking anywhere up to 8-9 hours for a full charge from 1%
All in all... it's a crap shoot using 3rd party cables. It's all based on voltage output and Samsung likes to change things alot. You will still get a charge but who knows the length of time it will take.
Oh and car chargers... typically only good for keeping it at the same level you plugged it in at for short drives. Long drives obviously work much better.
Hope this helps.
Click to expand...
Click to collapse

Very slow charging with OEM charger.. i9300
This is a fact. The OEM wall charger surely has some issues. Though 1amp output, as claimed on th specs chart, my i9300 charges super slow. From 80% to 100%, it takes nearly 3 hours.
So, i switched chargers and used my S2 and Note OEM wall chargers. And voila, the phone charges super fast. I even ordered a new OEM charger for s3 with the data cable included and the same issue occured.
This has worsened ever since the JB update. So I am now using the S2 charger and very satisfied.
SWTICH OVER GUYS!! OEM charger is useless,,,

I have had my phone on USB to computer charging for 7 hours, with a one hour break to watch Dexter. I was at 18% and I am now at 69%. I think I will have to use the wall adapter because this is just ridiculous.

Usb to pc will always be slow buddy. It outputs 500ma while d wall charger is 1 amp
I found my Usb cable faulty. Sent for replacement.
Cheers
→→Android▶◀▶◀ ROCKS!◆◆◆

Without reading all the post. I have had this same problem. Took phone to sprint, they tested the battery and it was bad. Got a new one and good to go..

[Q] Battery takes long to charge

I just got a t-mobile version of the S4 and I'm loving it, but I noticed it is very very slow to charge.
Aside from light to medium usage i didn't touch it much between last night and today. I had it plugged in and charging via USB, but it maybe charged about 40-45% in 6+ hours. My old phone (LG G2X) never took this long to charge.
More Info;
This was using the Stock T-mobile Rom
I have since rooted and installed CM10 nightly on the phone, It appears to suffer the same issue
Between 9:27 to 10:00 it went from 67% to %74, My LG went from %39 -%56 in about 20 minutes. By those quick number it will take 7 hours to charge the S4 while only 3 to fully charge the g2x
Is this normal? is there anything i can do to fix/test or alleviate this?

icewolf293 said:
I had it plugged in and charging via USB,
Is this normal? is there anything i can do to fix/test or alleviate this?
Click to expand...
Click to collapse
The question for you is the source? If you plugged it into your compy, it will take forever as standard compy USB ports (USB 2.0) provide only about 500 mA. The stock S4 charger is 2 Amps.
The fix, plug the phone into the wall using your stock charger. If it is still slow, it is probably your battery. Good luck.

Make sure to use the charger that it came with. Ever since I started using the stock charger my battery charges fast. Also it could be your plug so test it with another just in case.
Sent from my SGH-M919 using XDA Premium HD app

Yup it was the charger, I have chargers pretty much where ever i go so i just used those. With the stock one it works great but i ran into another issue. I plugged it in and it was taking a really long time to charge with the stock charger, something like 3% in 30 minutes. I had to unplug and plug in the cable again and it charged normally.
Is this something I should worry about?

It could be possible that the cable was not properly seated in the phone, or the charger end was not properly seated in the wall cube. I wouldn't lose sleep over it unless it happens often. Could be a phone problem, but sounds like a one off to me.
Yea my lady like to use my charger with her HTC phone because it "charges faster". The S4 stock charger has the highest amp rating and provides juice at the highest rate to any device. :good:

icewolf293 said:
I just got a t-mobile version of the S4 and I'm loving it, but I noticed it is very very slow to charge.
Aside from light to medium usage i didn't touch it much between last night and today. I had it plugged in and charging via USB, but it maybe charged about 40-45% in 6+ hours. My old phone (LG G2X) never took this long to charge.
More Info;
This was using the Stock T-mobile Rom
I have since rooted and installed CM10 nightly on the phone, It appears to suffer the same issue
Between 9:27 to 10:00 it went from 67% to %74, My LG went from %39 -%56 in about 20 minutes. By those quick number it will take 7 hours to charge the S4 while only 3 to fully charge the g2x
Is this normal? is there anything i can do to fix/test or alleviate this?
Click to expand...
Click to collapse
There are a few factors here.....
1. The charger itself. The original Samsung is a 2A charger. If you use a different one (most are only 1A) it will take twice as long to charge.
2. The USB Cable. Believe it or not, not all cables are the same. With the standard charger and cable you will be able to charge @ 1900mA. Less then 2 hours to fully charge a completely dead battery. But.... plugging some USB cables into the standard charger will limit the charge down to just 600mA.... taking 3x_ longer to charge.
3. The other is the kernel. If you're using a newer custom kernel Samsung has limited to a max of 1200mA with the screen on & full 1900mA with the screen off.
Lastly, you can download an app on the playstore called Galaxy Charging Current. This will show you the charging rate should you want to test your setup.

dannyben said:
There are a few factors here.....
2. The USB Cable. Believe it or not, not all cables are the same. With the standard charger and cable you will be able to charge @ 1900mA. Less then 2 hours to fully charge a completely dead battery. But.... plugging some USB cables into the standard charger will limit the charge down to just 600mA.... taking 3x_ longer to charge..
Lastly, you can download an app on the playstore called Galaxy Charging Current. This will show you the charging rate should you want to test your setup.
Click to expand...
Click to collapse
This man speaks the truth. I use CurrentWidget and set to manual update. Whenever I'm testing cables/chargers, I plug in a known good cable (charges at 1900) to see what the charger is putting out. I do the same with a known good charger (2A - iPad and S4) and test the cables

New Charger Won't Charge S III?

Hey everybody. I have a Galaxy S III from Virgin Mobile and it's been great... so far. Question is... my phone, battery, and charger have been going a little crazy. Lately, the battery has been charging slow, wouldn't say extremely slow but when I first got the phone, it charge pretty quickly. Now, it takes (I'm guessing here) about three hours just to charge to about 40-50% on a dead battery versus when I first got it, it would charge to near 80% to full battery in that same amount of time (again, just guessing but trying to paint a picture of what I mean). In addition, when I go to plug the USB in like normal, sometimes the phone would make the charging beeping noises continuously until I unplug the charger. When I leave it overnight, for the most part now, it won't even charge to 100%. When it did charge to 100%, it quickly drained to 75% in only one minute! I'm hoping it's not the port because nothing really happened to it (no drops, etc). I thought it was the port so in order to test it out, I used my brother's micro-USB cable and charger and it worked without the continuous beeping but still charged slow, which led me to believing it might be a software thing and the Android OS for some reason crapping out and "misreading" the actual battery level.
In a semi-related thing, I thought it might be the charger dying so I went out to Target to buy a Belkin Home Charger and ChargeSync Cable. This cable supposedly supplies 2.1 amps of power to the device, however, it won't even charge my phone even though Belkin says it works with Galaxy S3s right on the box. Never had problem using other micro-USB cables until now. The Belkin charger is the 2nd one I've used and it hasn't charged. Maybe too much amperage is going into the device? The other charger was a Rocketfish charger with the same specs. I figured it might be the USB cable itself because I paired the OEM cable with the Belkin charger and it worked. But I find it strange that identical micro-USB cable can and cannot charge the S III because I've switched cables in the past and it worked.
Sorry for the tons of info. Just trying to be as informative as possible. :angel:

Battery could be the problem
Charge the phone as high as it will go, then let it discharge all the way until it powers off, then leave it off while charging it all the way it will go (hopefully 100%).
If you are rooted, download "Battery Calibration" and "Rebooter". Run the first, then the second (a normal reboot often undoes the first - it deletes a file that often has stale data, but it gets written back on a normal reboot).
You can order a new battery from Amazon. It cost me about $8. Good to have a spare and you'll know if your battery was the problem if the above doesn't fix it.