Develop Bugs

Battery Issues with any rom

I'm surprised that nobody is mentioning the poor battery performance on the tilt 2.
I'm at 50 percent already with 8 hours standby (sleeping) and 2 hours of work.
I have my email update after every 15 minutes, and bluetooth on. No wifi.
Is it just this device or the ROM. I'd rather not say the ROM to implicate, but can we get an honest evaluation from Touch Pro users about how long their batteries are lasting??? Please.

hi, battery calibrations are lost when flashing roms. It is said to take a full discharge and full uninterrupted charge to restore these calibrations which cause reduced battery performance and also using the phone for a few days also helps too. I admit I would like to see better battery life generally, but its the price we have to pay for such a feature-rich amazing device.
Things like Lumous (auto back light software) can help out controlling how bright the backlight shines in certain scenarios. Setting backlight to switch off after 10 seconds and device to sleep after a minute can help out too along with not having 3G connected when not needed as with data connection, bluetooth, wifi etc.
Hope this helps out.

in regard sto battery calibrations, I have done that, and i have been with the same rom for 5 days

hmmm yeah I do know what you mean though about the performance of it, perhaps invest in a new battery, an extended one maybe? My TP2 lasts on average 2-3 days with some music playing, weather updating, not much calling, alot of texting and maybe some internet use.

same battery issues here with 6.5 stock rom but after hard reset
battery live is 30 hours with stil 2 stripes on batt indicator
pres green-red button-powerbutton read the message and then volume up.
Oh and I think the first battery loading is done 2 quickly the green Indicator after 1.5 hour was green < hold the device loading for 4 hours

yea i always perform a hard reset after flashing a new rom, i personally find the full discharge and recharge a good way to get things back to normal. However currently experiencing a max reading of 99% despite green light and it stopping charging. Have let it fully discharge until it turns off, and then left the device in bootloader to make sure the battery is completely dead and left it charge overnight but yet still only get such a reading. Perhaps when I flash an updated rom the reinstall may restore (which won't be too far away I'm sure, loving the Cell Pro series, thanks Sergio!)

There are a lot of reasons for the battery life to go down quickly. I have used many different ROMs (mostly cooked ones from the chiefs here) and have not found a lot of difference in my battery performance. It has been noted somewhere on this forum (room-mate read it somewhere here) that the stock radio on the tilt2 seems to be best battery life for most who have used it.
So to sum some things up:
- Version of radio
- how bright the screen is kept at all times
- number of applications running all the time (including auto updates for stocks, weather, push web pages, etc.)
- Temperature (going from a warm house to the cold outdoors)
- speed of processor
- size of screen/resolution
can all lead to shorter battery life.
Living in a rural area vs. downtown in a major city can also greatly affect your battery life. Most buildings will have cellular devices attached to them as companies receive some money from cellular companies for hosting their equipment. So battery life is much better downtown as the phone does not have to search as much for a lock on a good signal.

cd993 said:
yea i always perform a hard reset after flashing a new rom, i personally find the full discharge and recharge a good way to get things back to normal. However currently experiencing a max reading of 99% despite green light and it stopping charging. Have let it fully discharge until it turns off, and then left the device in bootloader to make sure the battery is completely dead and left it charge overnight but yet still only get such a reading. Perhaps when I flash an updated rom the reinstall may restore (which won't be too far away I'm sure, loving the Cell Pro series, thanks Sergio!)
Click to expand...
Click to collapse
Never fully discharge the battery! Most all devices will use Li-lon batteries and when over charged or fully drained you can kill the battery. Most devices are intelligent enough to charge up to (approximately) 98% and only let the battery drop to no less than 2% of life before shutting off. I used to do support for HP notebooks, and when they introduced lithium-ion batteries, people would demand a new battery when it would not charge past 98%. This made them change the way the software was reading the battery to reflect the 98% to read 100% on a full charge.
There is a good link in the wiki for our phones... I'll give it free of charge this time: http://forum.xda-developers.com/showthread.php?t=519673

Dangerously said:
Never fully discharge the battery! Most all devices will use Li-lon batteries and when over charged or fully drained you can kill the battery. Most devices are intelligent enough to charge up to (approximately) 98% and only let the battery drop to no less than 2% of life before shutting off. I used to do support for HP notebooks, and when they introduced lithium-ion batteries, people would demand a new battery when it would not charge past 98%. This made them change the way the software was reading the battery to reflect the 98% to read 100% on a full charge.
There is a good link in the wiki for our phones... I'll give it free of charge this time: http://forum.xda-developers.com/showthread.php?t=519673
Click to expand...
Click to collapse
thanks for the info, will give that wiki a read!

More battery observations

I have noticed that every time I load a new Rom on my phone (including a wipe) my battery life is awesome as long as I let the phone get down to about 2 percent before recharging. As soon as I charge the phone without the battery almost dead the battery life on the phone starts to suck. This leads me to believe that there is something written to flash memory when you plug the charger in. For a while I had noticed that if I plug the charger in in the middle of the day due to heavy usage that my battery life sucks for a week or so afterwards then slowly goes back to normal after regular charging before I go to bed. Under normal charging conditions (plug it in when I go to bed) I can get about a days worth of charge. This is a stark contrast to the 2 plus days I get out of the phone after a fresh ROM load is loaded and I let the battery almost die before charging it in.
Anyone else observe this or have any idea whats going on that can be causing this. Maybe its just a simple matter of finding the file and deleting it. And yes I have tried doing a jump charge and wiping the battery stats. It doesn't give the same results as a wipe of the phone with a new ROM.

My battery seems good if i do this...
Install new ROM or not, just charge phone while i sleep (usually from 12am-530am) up and at work, coverage sucks in the building so i constantly switch from 1x to 3g ... battery life drains and i will be dead by 12 - 1230pm If i leave it on charge from then until i hit 100% (usually 30 minutes after) i take it off and head out of work, ill last all day and end up at 12am again with at least 60%
This is all heavy usage. Pandora stays running, facebook and plenty of texts/emails. My phone will never sit still without any activity for 2 minutes.
Switching kernels is the thing that saved my battery with now my kernel is 2.6.32.32-ck2-BFS by ziggy
awesome battery life out of the stock HTC battery
It could be different phones handle the same rom/kernel differently too. I noticed this when i was running a blackberry storm 2. Both mine and my brothers, we would have the exact hybrid OS installed. let em sit idle after having done the exact thing....mine would drain a lot faster than his. could be phone vs phone in the same case as i mentioned, who knows? what rom / kernel you running?

Sorry man but I don't understand your post. The sentence where you explain what you do doesn't make any sense. Can you explain again.
I'm running Cyanogen 7 rc2 with the stock kernel that comes with it. I don't believe its possible to change the kernel on Cyanogen.

trevoryour said:
Sorry man but I don't understand your post. The sentence where you explain what you do doesn't make any sense. Can you explain again.
I'm running Cyanogen 7 rc2 with the stock kernel that comes with it. I don't believe its possible to change the kernel on Cyanogen.
Click to expand...
Click to collapse
You can use whatever AOSP/GB kernel you want.

So its been a while since my last update but I wanted to pass along some more observations in hopes that someone can tell me how the power system works on Android phone.
For quite some time I have been able to use my phone for 2 full days before it required a recharge. This came about when I loaded Cyanogen 7 on my phone from scratch. As long as I charged it every 2 days the phone would have no problems lasting for two full days.
Two weeks ago I got stuck at a car dealership for about 8 hours. I passed the time by reading books, playing angry birds and surfing the net on my phone. About 7 hours in my phone was at 2 percent. I plugged the phone into someones charger and charged it for an hour or so so I would have a phone for the drive home. Ever since then my battery life has sucked. For a while I could barely get a full day out of my phone before it would die. I'm getting about a day out of it now which is acceptable I suppose but Its disappointing since I know the phone is capable of so much more.
So seriously what is the deal with the charging system on this phone? Why is it the phone has excellent battery life only after the phone is wiped and fully discharged before it is plugged in again? If a wipe of the phone fixes the battery what is it about the whip that does the fixing? Can it be reproduced without wiping the phone?
Come on guys. Someone out there is smart enough to figure this out. Hook us up.

It'll constantly recalibrate after you flash, so no real need to do the full discharge unless you really want to. If you don't do it then it'll get stable and better accuracy after a couple of weeks, but yes when you first flash a ROM it'll have sketchy battery life.
The battery is charging fine but your phone is still trying to determine how big your battery is, so it may not fully charge all the way. The quickest way for your phone to determine how big your battery is, is to drain it all the way down then charge it all the way back up. Some say this is potentially damaging to Li-Ion batteries. Personally I don't do it because of that, but if you chose to not do a full drain, your phone will figure out your battery size it'll just take a longer time for your phone to do it.
The actual battery life you get on your phone varies hugely on (in order):
1) amount of CPU you're using
2) data usage
3) reception strength
4) Screen brightness
So that in itself will cause some drastic day to day difference in battery life.
With all that being said, the battery life you're not getting during the inaccurate gauge period isn't that much. If you're someone who needs every last minute of battery that you need to have them right away, then personally I would suggest doing some other things such as under-volting your kernel and lowering your clock speeds.

[Q] Huge Battery Drain after Phone reparation

I've brought my Desire Z back for reparation (Mainboard died and replaced by an official repair center).
I've bringed it with my stock Battery fully loaded (I took it from the charger and 30 minutes later it died). When i picked it up, the battery was totally empty. Nothing in it. The Phone didn't even turned on!
It taked a while on the charger, but finally it turned on and was charged to 100% in normal time.
Since that, I experience a huge battery drain. When I release my phone from the charger on 7.30AM, it is dead on 4.30PM with no use! No SMS, phonecall, nothing. Only Gmail sync.
I've tried different ROM's (With- and without sense) and did restore my phone to stock. It doesn't solve my problem, the drain still stays huge, even with no apps installed!!!
I've tried another battery > same problem!
What can this be? Normally, my Desire Z last about 1,5 days oder 2 days when nothing happens. Why it's draining so fast, even if it's not used?
What can I do to resolve this ??

JassyNL said:
I've brought my Desire Z back for reparation (Mainboard died and replaced by an official repair center).
I've bringed it with my stock Battery fully loaded (I took it from the charger and 30 minutes later it died). When i picked it up, the battery was totally empty. Nothing in it. The Phone didn't even turned on!
It taked a while on the charger, but finally it turned on and was charged to 100% in normal time.
Since that, I experience a huge battery drain. When I release my phone from the charger on 7.30AM, it is dead on 4.30PM with no use! No SMS, phonecall, nothing. Only Gmail sync.
I've tried different ROM's (With- and without sense) and did restore my phone to stock. It doesn't solve my problem, the drain still stays huge, even with no apps installed!!!
I've tried another battery > same problem!
What can this be? Normally, my Desire Z last about 1,5 days oder 2 days when nothing happens. Why it's draining so fast, even if it's not used?
What can I do to resolve this ??
Click to expand...
Click to collapse
try a new battery? Reset battery stats and give it a few days to actually get accurate readings? 8 hours isn't unheard of especially if your battery is giving up the ghost. give those thigns a try and maybe turn off sync and/or data to see if that makes a differance.

killj0y said:
try a new battery? Reset battery stats and give it a few days to actually get accurate readings? 8 hours isn't unheard of especially if your battery is giving up the ghost. give those thigns a try and maybe turn off sync and/or data to see if that makes a differance.
Click to expand...
Click to collapse
Thanks! I've already tried a new battery, but that makes no sense.
I'm now draining it to zero, i.e. when it's fully dead, and then charge it to 100% for 8 hours. When it's charged, i'll wipe battery stats. Let's see.
When anybody has more tips, i'm pleased to hear them!

Here's a tip: don't drain your battery to zero. This is a great way to shorten the life of the battery, or completely ruin it.
For purposes of battery meter calibration, draining to 10-20% is plenty sufficient.

There should be no problem draining a battery to zero as shown by software. There is a myth/misunderstanding that this is a bad thing because people confuse it with the fact that Lithium Ion batteries can be permanently damaged if they are drained too low.
BUT any device using such batteries will have its circuitry setup to have 0% set to a point above this damaging threshold.
So the "too low" point in hardware is likely to be below the zero point that the phone's firmware and software will let you go to.
Sent from my Desire Z running CM7.

redpoint73 said:
Here's a tip: don't drain your battery to zero. This is a great way to shorten the life of the battery, or completely ruin it.
For purposes of battery meter calibration, draining to 10-20% is plenty sufficient.
Click to expand...
Click to collapse
x2 I concur with this. No need to fully discharge the battery, one it probably doesn't even fully discharge because I'm pretty sure the software is saving you from yourself, plus when the battery stats are uncalibrated I'm fairly certain it reads as discharged but in fact is only partially thus the calibration is off. Lastly I'm if the opinion that throwing different charge levels works better because it more closely resembles real life charging situations. Also letting it charge for that long does nothing because the phone charges only a trickle when full in order to not ruin the battery, similar to a laptop. Overcharge protection....

Thanks again!
Now I did charge it to full and wiped Battery stats.
After 1hour 30 minutes, it lost 10%. Did only send 2 short mails with Gmail.
Here is the usage chart:
- Screen 54% (Time active 4m 51s), Brightness ~20%
- Mobile Stand-By 20% (Time active 1u 26m 13s)
- Phone inactive 18% (Time Active 1u 21m 21s)
- Gmail 5% (CPU Total 31s, CPU Foreground 25s, enabled 51s)
- Android OS 3% (CPU Total 21s)
CPU is on idle ~10%, as always. I don't see any apps that are burning my battery.
s there something abnormal here?

just compared it with my statistics (running virtuous affinity)...
Mobile Stand-By seems to be very high... i have 4% (time active 2 h 30 m)
maybe radio related?

hoffmas said:
just compared it with my statistics (running virtuous affinity)...
Mobile Stand-By seems to be very high... i have 4% (time active 2 h 30 m)
maybe radio related?
Click to expand...
Click to collapse
This stats come from Virtuous Affinity also. I'd had never had any problems with such a drain with my 'old phone'. As soon as I got it back from the repair center, the battery drain is huge.
I've reflashed the latest radio for my phone, made a Superwipe and made a fresh install of Viruous Affinity. Let's see.

I think that 'Cell Standby' is killing my battery. It is at the top of the usage list with 38% and it's all time active. My phone was left it's charger at 7.15AM, now at 9.00AM it lost 20% of it's battery on idle use only. On 9.00AM, I've turned my phone on airplane mode. Let's see if that works.
I will recover the phone to stock tonight. If this isn't working, I'll return the phone to the store.

Even with the phone on airplane mode the battery is heavily draining. My last escape is to remove the SD Card. If the draining continues, then I will bring my phone back.

Does the battery came hot? Like more than normal?
With temp+cpu app you can monitor your temperature.
Because if on idle the temperature's around 25-28 C, you should be alright.
And then you can consider what steviewevie said; lithium battery can be damaged if you go on a too low voltage. Even if the phone as his ''protection'' to not get the battery to a critical level, the battery can loose power even if its not used.
Lithium ion, its cool but not perfect.
Try a OEM brand new battery.

steviewevie said:
There should be no problem draining a battery to zero as shown by software. There is a myth/misunderstanding that this is a bad thing because people confuse it with the fact that Lithium Ion batteries can be permanently damaged if they are drained too low.
BUT any device using such batteries will have its circuitry setup to have 0% set to a point above this damaging threshold.
So the "too low" point in hardware is likely to be below the zero point that the phone's firmware and software will let you go to.
Click to expand...
Click to collapse
I've seen plenty of people on XDA with this phone and others that have rendered their battery unable to charge by letting it discharge to zero. Yes, there are failsafes meant to prevent over-discharge, but they apparently do not always work. The damage is not "permanent" in that its just the protection circuit of the battery kicking in. But the only way to bring the battery back from "sleeping" is with a special battery meter with boost function, which most people do not have access to. So for all practical purposes, its cheaper to just buy a new battery.
http://batteryuniversity.com/learn/article/low_voltage_cut_off
Yes, over-discharge will not LIKELY kill your battery in this way. But there is no point in taking the risk. The battery meter is far from accurate in the best of conditions. So there is zero benefit to letting the battery drain to zero, as opposed to 10 or 20 %, just for the benefit of calibrating the battery meter.
Also, even if over-discharge does not instantly "kill" the battery, running full cycles at the least will shorten the overall life of the battery. Its best to avoid full cycles and charge often.
http://batteryuniversity.com/learn/article/do_and_dont_battery_table
Now this is just my experience from reading the experiences of others on XDA. I know there are hardware techs that can give much more first hand experience with batteries and may disagree. But as I figure, better safe than sorry. Especially when you consider there is no real benefit to letting it drain to zero on purpose.

oVeRdOsE. said:
Does the battery came hot? Like more than normal?
With temp+cpu app you can monitor your temperature.
Because if on idle the temperature's around 25-28 C, you should be alright.
And then you can consider what steviewevie said; lithium battery can be damaged if you go on a too low voltage. Even if the phone as his ''protection'' to not get the battery to a critical level, the battery can loose power even if its not used.
Lithium ion, its cool but not perfect.
Try a OEM brand new battery.
Click to expand...
Click to collapse
The temp of the battery don't exceed 28 degrees, I test this with Battery Indicator Pro. When discharged, the Voltage is around 3,6 (Which is normal behaviour). When charged, it,s 4,2V which is normal also.
I have already tried a new battery, and it doesn't make sense. Same behaviour.
I'm really clueless, because it drains the battery always. Airplane mode an removal of the SD card makes no difference.
I will return to stock tonight, charge again, and see if it behaves the same. When yes, then I will return the phone as I don't accept such behaviour (Normally, my Battery last 30+ Hours on idle).
Thanks for your tips and help for so far! I will report.

Is this good Battery Life?

So I've just recently rooted my Incredible (about 4 months now) and I bought a 3500 mAh battery off ebay for about 12 dollars around the same time. I used to get really great battery life with it. About 2 full days without having to charge. I'm not sure if the battery's getting worse or if this is normal battery depletion for all you other Incredible users.
I'm running CM7 nightly 258, the latest one, and have the newest Incredikernel, just flashed the kernel about a week ago. I'm still pretty new to the rooting game. Before I flashed the kernel I just had the normal kernel for CM7. I was getting about 10 hours of battery before and tried the battery calibration, but I think I did it wrong and got maybe 8 after that.
So I tried running the Incredikernel and was getting between 12-20 hours of battery life after that. My usage is at least 2 hours of Pandora a day using 3g, sometimes 3-4 hours. Moderate to high internet usage, rarely make calls, and moderate texting. I'll sometimes play some games, but that probably equals about half an hour's worth per charge, an hour at most. I'm also running juice defender, too.
With the new kernel I have the smartassv2 governor and have my processor speed between .128-1.113ghz. I think I did the battery calibration the correct way this time. I bumped charged it until it was completely charged. Then let it completely drain till it shut off yesterday. It lasted about 24 hours with the normal usage I have stated above. I then turned it on 2 more times to make sure the battery was completely drained. I took out the battery for a couple minutes and then put it back in. Then I let it charge off until the light turned green. I then booted into recovery and cleared battery stats. Rebooted the phone until it was completely started and then unplugged the phone.
I let the battery drain completely again and it lasted another 24 hours with the same usage I have stated above and I'm now charging again. I turned it back on while it's still charging though.
Is this normal battery life compared to you guys. Remember I have the 3500 mAh battery, but it was off ebay (stated new though). If you could also post you're battery usage and how long your battery lasts, as well. Also any other important info like, kernel, ROM used, CPU speed, etc. I'd like to compare to see how everyone else is doing. Thanks again.

I'm on CM7 right now with the latest Incredikernel. I use the Incredicontrol app to undervolt and set my frequencies from 128-921 Mhz. I have a standard battery and with light usage I get a day and half off a single charge, moderate/heavy usage it'll range from 12-20 hours.

You use any powersaving apps like Juicedefender? Also what do you classify as moderate/heavy usage? What battery governor do you use? Did you do a battery calibration?

graymonkey44 said:
You use any powersaving apps like Juicedefender? Also what do you classify as moderate/heavy usage? What battery governor do you use? Did you do a battery calibration?
Click to expand...
Click to collapse
I don't use Juicedefender or any power saving app like that. Moderate/Heavy use I mean texting all day making calls, on the internet, playing various games. Don't get me wrong there have been times that I kill my battery in less than 10 hours, but that's when I'm on my phone non stop or on Netflix. For a governor I use smartass, not smartassv2. I did calibrate my battery once, last year when I got the phone. To me what makes the biggest difference is undervolting with the Incredicontrol app. And the phone runs much cooler.

I might try undervolting to see how long that lasts. 1.113 ghz might be overkill, but I have noticed a performance increase. The majority of what kills my battery is the display though when I check out my battery stats. It's always at around 60%. I have the amoLED screen as well.

graymonkey44 said:
I might try undervolting to see how long that lasts. 1.113 ghz might be overkill, but I have noticed a performance increase. The majority of what kills my battery is the display though when I check out my battery stats. It's always at around 60%. I have the amoLED screen as well.
Click to expand...
Click to collapse
I always dim my screen as well. If its on the highest setting it'll kill a lot of your battery quick. I used to have my phone over clocked to 1.113 GHZ but after testing different things out I noticed if I lowered it under 1 GHZ there was not much of a diff. For undervolting I dropped the number by 25 at a time until I noticed the phone lagging. hope this info helps.

I have my screen on auto brightness. It's usually at a low bright setting unless I'm outside. I'll try out undervolting, too. I have noticed the phone does run a little bit snappier with the 1.113 ghz though, but I can live with it being a little less if it means better battery life.
I don't know if it's my battery or not though, but everytime I unplug it, it's been going right back down to like 89% within minutes. I understand that you can't fully charge the Li-ion batteries all the way, but I don't know if I'm fully utilizing the battery to it's full potential since it is 3500 mAh.
I might go back to my standard battery and see how it compares. Although I do like the feel of having the extra thickness with the bigger battery.

graymonkey44 said:
I have my screen on auto brightness. It's usually at a low bright setting unless I'm outside. I'll try out undervolting, too. I have noticed the phone does run a little bit snappier with the 1.113 ghz though, but I can live with it being a little less if it means better battery life.
I don't know if it's my battery or not though, but everytime I unplug it, it's been going right back down to like 89% within minutes. I understand that you can't fully charge the Li-ion batteries all the way, but I don't know if I'm fully utilizing the battery to it's full potential since it is 3500 mAh.
I might go back to my standard battery and see how it compares. Although I do like the feel of having the extra thickness with the bigger battery.
Click to expand...
Click to collapse
Charge it while its off or get an external charger. That's the only way to get a true 100% charge from a phone battery.
-My life is a shooting range, people never change-

Yeah, I have been bump charging as of lately(about a month), but I hear it decreases the life of the battery so I've been holding off on doing that.
With my latest charge, I've gotten 1d 14h 49m 20s, with moderate usage which I think is pretty impressive. It's still at 5% and I'm going to let it completely discharge and then charge it off again until the light turns green.
Edit: It lasted me right around 40 hours all together. It shut off so I decided to turn it back on and see how long it would last again. It was at 2% when I turned it back on and I got another half hour out of it which led me to the 40 hours. Do you think that's good battery life with a 3500 mAh battery?

[Q] [Q&A][SGH-i747] Battery charge retention issue. (CM10.1-20130203-NIGHTLY)

Hi all,
Over the last three days I've been having some trouble with my S3's battery. Recently I've been experiencing large battery drain while not using the phone excessively. Today within 20 minutes of unplugging the phone from a full charge it read 40% charge. It's almost as if I am lacking 60% of my battery.. From when I got the phone (on release day), I had never found the battery to be very impressive. The advertised 800 hour standby time has always been far out of reach, and I often found myself having to plug the phone in after 7-8 hours, (I'm a student, so it's away all day as I'm in class, i.e, low use.)
I don't use WiFi (I have 7GB/mo data), I don't use automatic brightness (held between 5-20%), GPS is on (For some Tasker profiles, but is rarely used), and I have never used NFC/S-Beam.
I have done factory resets, two since having issues with the battery. The phone is rooted and is running CM 10.1-20130203-NIGHTLY-d2att, I thought that updating the CM build might help (Feb 3rd as you can see), but hasn't. Also it is underclocked to MAX 810mHz. Battery usage statistics pins the main user as the screen, but I feel this is false.
I'm thinking of buying a new battery, might that help?
TL;DR: I'm having battery problems, and have tried all the normal fixes I could find online. See the attached images for battery details.
Any suggestions are appreciated!
Thanks!

Zev.Isert said:
Hi all,
Over the last three days I've been having some trouble with my S3's battery. Recently I've been experiencing large battery drain while not using the phone excessively. Today within 20 minutes of unplugging the phone from a full charge it read 40% charge. It's almost as if I am lacking 60% of my battery.. From when I got the phone (on release day), I had never found the battery to be very impressive. The advertised 800 hour standby time has always been far out of reach, and I often found myself having to plug the phone in after 7-8 hours, (I'm a student, so it's away all day as I'm in class, i.e, low use.)
I don't use WiFi (I have 7GB/mo data), I don't use automatic brightness (held between 5-20%), GPS is on (For some Tasker profiles, but is rarely used), and I have never used NFC/S-Beam.
I have done factory resets, two since having issues with the battery. The phone is rooted and is running CM 10.1-20130203-NIGHTLY-d2att, I thought that updating the CM build might help (Feb 3rd as you can see), but hasn't. Also it is underclocked to MAX 810mHz. Battery usage statistics pins the main user as the screen, but I feel this is false.
TL;DR: I'm having battery problems, and have tried all the normal fixes I could find online. See the attached images for battery details.
Any suggestions are appreciated!
Thanks!
Click to expand...
Click to collapse
Get the app BetterBatteryStats to narrow down what's draining your battery.
Also, being so UV = takes longer to load stuff = longer screen time = more battery usage. UV too much results in higher battery drain.

Okay but...
BWolf56 said:
Get the app BetterBatteryStats to narrow down what's draining your battery.
Also, being so UV = takes longer to load stuff = longer screen time = more battery usage. UV too much results in higher battery drain.
Click to expand...
Click to collapse
Okay I just bought Better Battery Stats, I'll let it analyze whats going on for the next few days.. And I assume UV means under voltage? Either way I put the processor speed back up to default (1512 mHz). But that still doesn't explain the 60% battery drop in 20 minutes after being unplugged.

I don't think it is possible for your phone in any case to drain 60% in 20 minutes. That's a ton of power usage, your phone would probably melt if it was using that much. Sounds like your phone is not reading your battery level properly. You may want to try resetting your battery stats, however I have heard that the s3 battery monitors its own level. In this case you probably would be better off just getting a new battery.
Sent from my SGH-I747 using xda app-developers app