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Going nuts!! Battery...

Have to charge almost twice a day... I believe it happened after latest 1.45.531.1 update....
Disabled all animation, got auto adjust for display, disabled all what I could.. Still gives me 12 -16 hours on standby only....NOT even using the phone!!!!
Does anyone have something like that??? Or there is some remedy I skipped?
Sorry if I repeat someone's question.
Running full stock, HTC battery.
Thanks in advance!!
Tester.
PS. Recently exchanged the phone.... First one R.I.P......died completely, didn't even charge.
Is there a chance they swapped a refurbished one on me??? How to find out???

can you provide a screenshot of the battery usage graph? also, have you tried getting an aftermarket, bigger battery such as the anker?

I was the same way as you. I checked my battery graph, and standby was using something like 80% of the battery with almost everything turned off. By the time I got home from work I would need to charge it immediately. I bought one of the Anker batteries on Amazon for $15 bucks or so, and I'm now getting about 2 days for a charge. I don't know what it was with my battery, because it sounds like my experience wasn't typical, but I didn't really feel like going through HTC when I could just pay the $15.

I'm with ya...
This phone was running PERFECT prior to the HTC update. Now I'm having a plethora amount of problems, including the battery. For example, prior to the update I would get 13-16 hours on HEAVY usage... Moderate usage? Try a day or day in a half. Now take today for example, I unplugged my phone a little before 7am and I had 20 something percent 4 hours later.
I'm telling you, that HTC update really messed this phone up IMO.

Thanks, guys!!
Will try to get Anker battery, I believe it's 1900 mAh.
But again something running on the background with that update. We'll see.
I'll try to get the graph, maybe someone'll get some sense of it...
Much appreciated,
Tester.

here are the battery stats...
Display..........74%
Cell standby...13%
Phone idle......11%
Voice calls......2%
THAT'S IT!!! Nothing else is running...... SUX...
Still gives 12 - 16 hours of life on almost idle......

I hate to say it,but if you're battery's dying a lot faster after an update,a bigger battery won't help much.
I'd be getting in touch with HTC and ask them what the heck is going on.

Really annoyed with the battery performance. I checked and only display is using 90% of battery. Tried everything to reduce it but no change.
Sent from my HTC Sensation Z710e.

Tester30 said:
Have to charge almost twice a day... I believe it happened after latest 1.45.531.1 update....
Click to expand...
Click to collapse
I've had the same issue since the update. My battery drains at a ridiculous rate. I've become really frustrated with the phone since. I rooted it and flashed a custom ROM in hopes of solving the problem but it's the same deal.
I've confirmed it's not the battery either since I've got another one I've tried and only get the same results. Even with Juice Defender running I get nowhere as great a battery life as I did before the update

I'm doing decent 8hrs 20,mins on batt. With 40% left mostly text and internet browsing
Sent from my HTC Sensation 4G using xda premium

Try clicking the graph at the top of the screen it will give you another screen that shows awake/screen time etc. Is your phone going to sleep when you screen turns off?
I was having the same problem and realized that some app was keeping my phone awake even though the screen was off. I uninstalled 80% of the crap I had installed and now my phone sleeps like it should and battery lasts amazingly long time.
Tester30 said:
here are the battery stats...
Display..........74%
Cell standby...13%
Phone idle......11%
Voice calls......2%
THAT'S IT!!! Nothing else is running...... SUX...
Still gives 12 - 16 hours of life on almost idle......
Click to expand...
Click to collapse

anurbanlegend said:
Try clicking the graph at the top of the screen it will give you another screen that shows awake/screen time etc. Is your phone going to sleep when you screen turns off?
I was having the same problem and realized that some app was keeping my phone awake even though the screen was off. I uninstalled 80% of the crap I had installed and now my phone sleeps like it should and battery lasts amazingly long time.
Click to expand...
Click to collapse
How can you tell if your phone is going to sleep when you lock the screen? What is a good method for this? And if I find it its not sleeping when it should, is there a way to find the culprit easily?
Sent from my HTC Sensation 4G using XDA App

_DavidWebb said:
How can you tell if your phone is going to sleep when you lock the screen? What is a good method for this? And if I find it its not sleeping when it should, is there a way to find the culprit easily?
Sent from my HTC Sensation 4G using XDA App
Click to expand...
Click to collapse
Click on the graph in battery stats, it should show awake time and screen on. If your awake time is constant when the screen on time isn't, then chances are you've got an bad app somewhere preventing the phone from sleeping

my battery life was plain **** on 2.3.3., device was running hot all the time (=waste of energy), charging took ridiculous 4h+! When I took it off at the charger around 23:00 the battery was dead at 14:00 the next day with most time being idle!
Since my update to 2.3.4 things got so much better. charging takes around 2h and battery finally lasted a whole day and had 40% juice left in the evening.
Since I got my 2 Ankers+charger for 20$, battery life is crazy now. Been on one charge for 2d2h and still had 16% left. Pushmail on, wifi on (cellular data only when not at home), brigthness at 100%, taking video, pictues and some navigation, messaging and phonecalls. Oh yeah and a few minutes of flashlight use
I would say between slight and medium use.
If 2.3.4 worsened your batterylife, contact HTC or your vendor.
I now replaced the battery at 16% with the other Anker because I still need to do my 5 charge cycles on that one to calibrate it.

Here's an example of the graph. At the bottom you can see awake and screen on time. I pulled phone of charger last night, did some browsing, then ran for an hour with music playing in the background (you can see the small green bar on awake even when screen is off). After I surfed a little and left it off the charger when I went to bed. The phone is properly sleeping when the screen is off and almost 16 hours and still have 62%.
Before I uninstalled the apps, the awake time was solid green across the screen.

Anker battery worked wonders on my device. Before I would have to throw it on the charger after lunch as I like to go for a beer after work and the stock battery would never make it that far... Now when I get home from the bar I still have ~30% battery. Anker battery FTW!

flash a custom rom and u will go gaga over ur battery life. definitely works for me. on standby overnight drain 0-1%.

I found out that if you don't have strong signal at your location your battery drains pretty fast that's why I always connect my phone to WiFi at my apartment where my phone looses signal sometimes. now I lose just 1-2% of power during a night.

Sorry to hear about your battery troubles. A couple days ago I rooted and switched to "Android Revolution HD 3.0.4" and my battery life seems pretty solid. I wasn't having battery life issues prior to this though.
I'm currently in the process of calibrating the battery:
- drain it mostly
- turn off
- plug it in overnight while still off
- in the morning unplug, wait 15 minutes, replug for a few hours; do this ONLY ONCE or you may damage the battery
- power on, immediately go to recovery, advanced, reset battery stats
- start normally
- drain battery until it shuts down; a continuous stress test or stability test app is probably ideal
- once it shuts off, turn it on again to double-check that it's dead; it should only come on for a second or two
- while off, plug in and allow to fully charge; no fooling around with plugging/unplugging, just normal
- calibration complete!
I think you can follow a similar procedure (minus clearing battery stats) to refresh the battery calibration even without rooting/custom recovery. I've read the effectiveness is similar. The phone just needs to be retaught what "full" and "empty" mean, all in one charge cycle. If you calibrate it wrong you could have issues with it shutting off while still reading ~15% battery life.
Anyway, as I said, I'm in the process of doing this. Currently I'm in the "drain it" phase... with my screen at maximum brightness (remaining on), overclocked to 1.5 ghz, I've been running "StabilityTest" (from market) for one hour and fifteen minutes. It stresses both cores as well as the RAM. At this time, my battery is at around 30-40% or so, and it's getting really hot! The phone's temperature is reading as 54.8 degrees!
Also, yesterday I used the GPS for about 4 hours before it died, this was prior to any calibration attempt. I think this is within typical battery life considering that the screen stays on.
TL;DR: Maybe you just need to try a custom rom or recalibrate your battery. Miscalibrated battery can be caused by flashing/updating a rom, I imagine even when it's an OTA. Sense is crippling your phone anyway, you might as well give it a try IMHO.

get yourself an anker battery..I havent charged my phone since the day before and now i have 20% left! heavy usage
Sent from my HTC Sensation 4G using XDA Premium App

Incorrect battery reporting w/ Sense 3.5

Has anyone realized this or is it just me, every sense 3.5 that I've tried the battery indicator is incorrect.
For example, I just had 41% battery life before resetting my phone and now I have only 4%. Is it not charging the battery correctly? I also turn the phone off after it says 100% and then charge until the green led comes on but still it is either draining too fast and phone doesn't detect it until a reset or the battery isn't be charged completely because the rom thinks it's 100. I have caliibrated and erased the batterystats.bin file so many times and it's still the same. any insight on this? I have a brand new battery from htc as well.

Same problem

Constantly "calibrating" or deleting the battery stats is the exact reason this happens. You dont have to do that, regardless of what people say.
This will happen until the battery has been charged/discharged a few times and will slowly stop happening.

No issue here, got my new anker battery.. Flashed BP 2.1.5 and since then, my battery has been normal and amazing!

the_scotsman said:
Constantly "calibrating" or deleting the battery stats is the exact reason this happens. You dont have to do that, regardless of what people say.
This will happen until the battery has been charged/discharged a few times and will slowly stop happening.
Click to expand...
Click to collapse
This. When I flash ROMs I don't really do anything in relation to the battery. I just use my phone like normal. The first day or two you might get a little more drain than usual, but after that it will be completely normal and you don't have to do anything like wipe battery stats or calibrate or run it down to 5% and charge it all the way up or whatever.

Yes, constantly resetting battery stats is bad. Should only occur right after flashing the new ROM. Ideally you'll have charged your phone to 100%, flashed the new ROM, and immediately putting it through 5 discharge/charge cycles.
My battery life was horrendous when I didn't properly calibrate the battery. Going through the process now and its lasting a significantly longer time compared to not going through the process. I'm talking about getting like 6 hours of light usage compared to like 15.
Or it could be just ARHD. I really didn't like that ROM. Anyways, I'm running Bulletproof 2.1.5 with 3.5 Sense on an Anker battery and its doing great.
Sent from my HTC Sensation

nrvnqsrxk said:
I'm gonna have to disagree with you on that. My battery life was horrendous when I didn't properly calibrate the battery by going through at least 3 full discharge and charge cycles. Going through the process now and its lasting a significantly longer time compared to not going through the process. I'm talking about getting like 6 hours of light usage compared to like 15.
Sent from my HTC Sensation
Click to expand...
Click to collapse
+ 1 my battery was shocking, im on my second full cycle currently at 2% lol and already i've noticed improvements by like 20%
Sent from my CM7 Sensation XE using xda premium

I've done everything, calibrated the battery numerous times with and without wiping the batterystats.bin and it's still acting up. Say this morning I wake up, take the phone off charge at 100%, go out, and restart the phone for any reason when the phone's battery meter is at 95%, after the restart the meter will jump down to 70%.
This is with a new battery, new rom, totally wiped device, I even used the ruu to get me back to the stock rom.
Anyone have any idea what's the problem? The battery life is ****, and doesn't seem to get any better with calibration.

xdviper said:
I've done everything, calibrated the battery numerous times with and without wiping the batterystats.bin and it's still acting up. Say this morning I wake up, take the phone off charge at 100%, go out, and restart the phone for any reason when the phone's battery meter is at 95%, after the restart the meter will jump down to 70%.
This is with a new battery, new rom, totally wiped device, I even used the ruu to get me back to the stock rom.
Anyone have any idea what's the problem? The battery life is ****, and doesn't seem to get any better with calibration.
Click to expand...
Click to collapse
This is your culprit. Let it bed in a few days, and performance should stabilize.
Go through 5 full charges/discharges, uninterrupted. Yes, it's a pain in the ass, but you signed up for it when you flashed a new ROM.
Everytime you wipe your battery stats, you have to go through the 5 cycle process again. Uninterrupted.
EDIT: Had a lil too much rum and misspelled a few words. I even misspelled mispelled

Alright dude, I'm going to take you up on your word, I'll give you another update within 5 days.

This is a problem with all Sensation ROMs, even with S-On and Stock ROMs. I get a problem like this one too. If I have 60% left, and I restart the phone, it goes up to 69% and I don't know why. Also very slow charging from the original wall charger, but if I reboot when it's charging at 70-75%, when it finally boots, it says 100% charge. This must be some bug from HTC or something. :S

Hi,
Same problem (with Sense 3.0/Sence 3.5 and different ROM),but is there a fix for that?
I saw this:
Batt Jumping hopefully solved (Beta) = Done
Click to expand...
Click to collapse
The thread: http://forum.xda-developers.com/showthread.php?t=1287129 .
Probably a way to fix the issue?
Should be asked about this in the ROM thread?

Me too same bug since first day, I think it's a battery sensor fault

It's not a hardware fault...it's not a battery fault...it *may* be a ROM/kernel issue...but I suggest you give your battery a few discharge/charge cycles and you'll see it should go back to normal.

virtuous Inquisition battery reading

I'm running virtuous Inquisition 4.0, I've cleared the battery stats a couple of times and no matter what I do when I get down to like 40 percent, the phone crashes and then when it reboots I'm at 4 percent. Sometimes it just does it if I reboot. I can't figure it out. Its really bugging me. Anything I can to to fix this?

Bump? I've been trying to calibrate the battery like I always have since Donut. Has it changed in ICS?

Turn off Power-saving mode in settings and try

Where is the power saver in this rom? I can't find it. I've also noticed the battery draining unusually quickly from screen use. I just went from 54 to 30% from 10 minutes of use. Its been on 12 hours now and I'm assuming that's an inaccurate reading but still disconcerting.

What about the classic backup, wipe and flash technique? It's worth a shot if you haven't already.

Inquisition doesn't have power saving enabled, so that isn't the cause.
Barring a corrupt ROM or firmware, as suggested above do a superwipe and reflash both first, your graph looks like a failure in the battery.
Does it get hot, or has it ever been heat damaged? I'd suggest replacing the battery, if the wipe doesn't help.

Wiping battery stats doesn't actually do anything, unfortunately. Battery readings come from the battery itself. I've noticed mine's been pretty bad lately, 15% then if I reboot it's back up to 40%. 10 minutes later, 20%.
The best you can do is charge the battery all the way, discharge it all the way, charge it back up, and hope for the best.

I don't think its ever been hot enough to get heat damaged. I mean I suppose that could be the cause. My phone hasn't been through a full.power cycle in awhile so I will try to completely charge and discharge it for the rest of this week and I'll monitor the voltage readings. Its been a bit more stable today but still not lasting as long as it has been in the past. If the charges and discharges don't fix it I will reflash the rom. Still doesn't explain why like every other morning my phone will say 80 percent or something after being plugged in all night but after a power cycle it reports 100 percent. Could that also be a symptom of a bad battery? I can probably have T-Mobile replace it. Or maybe I'll buy an expanded capacity one. First I want to try to fix this one though. I'll report back. Thanks for the help guys

This is quite ridiculous. It was at 7 percent for like 6 hours today. I never know how much battery I have left. It's not like I'm getting bad battery life because I've been on for 14 hours today with heavy use but the readings are so inaccurate.

I'm going to do a full wipe, redownload everything, reflash firmware, radio, and the rom and then once I get everything set up again, if it's still doing it I will go get a new battery, probably one of those Anker 1900mAh ones that someone told me about on the virtuous rom thread. I'm not sure if it's coincidence or not that it started happening when I updated the ROM but other people aren't having the issue (except for one or two) so I don't think it's a ROM issue, probably battery hardware.

This is what VI with the Anker battery should look like:

Damn, that's impressive. What's up with that spike halfway through though? I think I'll just buy a new battery, even if this battery isn't broken, just because my god, 22 hours with 6 hours of screen on is incredible. I don't normally have more than 2 hours of screen time in a day and my battery will only last 16 hours

The spike is where the phone was reset, the battery percentage always jumps up 10%-15% on a reboot then goes back down in a few minutes. Also, the screen on time was closer to 7hrs
I would caution that I'm getting excellent mobile signal for 98% of the day, your results will probably be lower with your signal issues - have you tried the new radio driver from Tmobile?

I thought that this was an isolated case but I just had this as well. I've got 25% then I installed something via adb and need to restart. After reboot, the meter reads 45%. Absurd really.

My signal issues are not phone related, its just where I go to school. I did install the T-Mobile radio and have had much better 3g coverage and signal where I thought it was a complete dead zone. Most of the time I just turn off data and sync during school to save battery. After I did 3 complete drains and charges I have noticed that its been more consistent in reading. Still not lasting quite as long but its not stair stepping anymore in the graph. It is a little bit but not as bad as before. I'm still thinking about getting that anker battery anyway. I'm still only getting like 16 hours with 1 to 2 hours of screen usage which I would like to extend. I have a car charger so when it does die when I'm out its not the end of the world but its still irritating.

So I've concluded its a bad battery. Its started doing it again, much worse now. It randomly just loses power several times a day, as if I took the battery out but I didn't. I also.downloaded a detailed battery graph app, I took a picture of my voltage chart throughout today and its all over the place. I'll call to get a replacement tomorrow and then I might also get the anker battery. I'm getting sick of the phone just going black in the middle of a conversation or something rather. Other sensation owners have run into this problem.also.

have you guys all updated to the lastest firmware out and newest version of the rom?

No, I'm planning on flashing that tonight though. Hopefully it just turns out to be a kernel issue and it resolves when I update. That voltage graph appalled me.

when i first start using VI i had about 8-10 hour battery life, i looked around in rom manager, saw some cm9 roms, backed up my VI, and tried the cm9. didnt like it and restored my VI backup. Now my battery life is about 18-20 hours. i dont know what happened there but it helped alot. maybe somebody else with bad battery life should try this and see if it helps.

Well, I dropped my phone, landed on a concrete floor on the corner of the phone, cracked the corner of the screen and the camera lens. But I have insurance, so I'm getting a new phone within a few weeks (it's backordered right now through asurion) and when I get the new one I plan on purchasing an anker battery to solve all of the battery life woes. Asurion offered me an HTC Amaze but it has worse battery life, it's bigger and heavier and not that much better, so I'm sticking with the sensation.

[Q] Faulty Battery?

So I've had my Samsung Galaxy S 4G for over a year now. Rooted it many times with no issues. Until recently, my phone's battery meter seems to be messed up. Sometimes when I charge it to 100%, I use it for maybe an hour and it reaches up to 60%. Then, it randomly shuts off as if the battery is dead. I reboot it and it tells me to Connect my charger because the battery is 0% which is weird because it just said it was 60%. It shuts off again immediately and I wait for like 10 minutes later, then reboot it, only to see it say I have 40%ish left. I have already used Battery Calibration because it has worked in the past but now something seems to be wrong. I even use the Doubletwist Music app and it seems to be draining my battery life significantly more than usual as well (1 hour would take up about 25% of my battery) and the random shut-off because of "low battery" life occurs. Is this a battery problem ?

Try the one click gremlin remover, or flash another ROM. You can also try wiping cache, dalvik, and battery stats if you haven't. If the problem persists then you're probably looking at a bad battery.

Check your battery physically, if is bloated/swollen, then it is defective and needs replacement. but if not, then try going back to stock GB and see if the problem persists.

Take it out, put it on a flat smooth surface. Spin it on both sides. If at least 1 side spins like more than one or two circles, it's broken.

Thanks guys. I never thought a battery would get bloated but when I took it out, I immediately noticed this and haha in regards to the post on top, I thought you were only joking but you were right ! Anyways, I just ordered the same model number of the battery on Amazon (http://www.amazon.com/gp/product/B0...ils?ie=UTF8&me=&qid=1348188495&seller=&sr=1-1), in hopes that my battery life is back to normal !
Just a note, any recommendations/advice/tips on what you should/shouldn't do in terms of charging a battery. What I usually do is charge my phone every night and unplug it once I wake up. Maybe that contributed to the bloating.

Heat and deep discharge kill Li ion batteries, so your approach is good. Topping it off during the day won't hurt either.
Posted from my SGS4G, thanks to Team Acid development

I got a new bat last year and it's already puffy.
I guess that's why I am having worse battery on CM9 then already reported.

Yeah when the battery is bloated around the middle it means you need a new one. Battery life is not that bad on cm9 with a new battery. The old batteries thats been through a billion flashes and possibly overclocking with overheating and cooling are bound to suffer on cm9. Anyways their cheap on Amazon like $7 bucks for OEM.

I am prob gonna get a new extended slim one.

Strange battery stats.

Hi, my phone battery keeps messing up. I have done a battery calibration but it still seems to mess up.
The main problem is that the battery runs out, 10 mins later I have like 3 percent battery, then that runs out so I start to charge it, it charges up to around 20 percent then it jumps to around 60 percent.
By the way I have terrible battery life too - maybe 1 to 2 hours of use before running out.
Edit - I didn't say this but I am on albinoman887's cm10.1 rom.

hellfire191 said:
Hi, my phone battery keeps messing up. I have done a battery calibration but it still seems to mess up.
The main problem is that the battery runs out, 10 mins later I have like 3 percent battery, then that runs out so I start to charge it, it charges up to around 20 percent then it jumps to around 60 percent.
By the way I have terrible battery life too - maybe 1 to 2 hours of use before running out.
Edit - I didn't say this but I am on albinoman887's cm10.1 rom.
Click to expand...
Click to collapse
I'm facing a similar issue, and changing Kernels doesn't seem to help either.
Things have gotten slightly better now in today's build. If updating doesn't help then you should try staying in an older build, the last where the issue was not present.

I don't think its the ROM's issue. Even by itself, after reboot I gain a few % of battery but those deplete quickly.
And then while charging. I restart, from 20% to 60% is possible too. So its not recommended restarting while charging.
Full charge then calculate drain pattern.

I have similar problems. My phone also shuts down very often. When I turn it on again it shows strange readings like 0%, 11% etc. If I reboot my phone it might either stick with the percentage it showed before, not boot at all, or jump back to 80% or so. However, it never takes long before it shuts down again. Even happens sometimes when using my charger...
Chances of my phone shutting down instantly are nearly at a 100% when using the flash while taking a picture.
I don't know what to think in terms of whether or not this is a software or hardware issue as many other people have similar problems, all on different roms and kernels.
Currently I am on:
Firmware build: 3.33
Kernel: Sultan Kernel r21
Rom: JBMIUIv4.1 #3.3.1

about battery percentange when chraging it's a commonn htc issue
i have the same too
no one has found a solution for it yet

Do you all get bad battery life too? Because I don't seem to get a very long battery life.

hellfire191 said:
Do you all get bad battery life too? Because I don't seem to get a very long battery life.
Click to expand...
Click to collapse
No. The battery life on Albino's builds has been nothing short of fantastic for most. You might consider replacing your battery if it's the original stock one. It's bound to be wearing out by now.

I have just bought an anker battery so I will see how it fairs vs he original battery.

R: Strange battery stats.
I believe its something that occasionally happens when u change a rom and kernel. I remember theres somewhere where u can reset battery stats....i think in clockwork...
Sent from my GT-I9300 using xda app-developers app

hellfire191 said:
I have just bought an anker battery so I will see how it fairs vs he original battery.
Click to expand...
Click to collapse
In fact, kernel and ROM do affect battery life, search for what fits your cell phone the best.
I get amazing battery life on ViperS 1.6.3 and the latest Faux + Yank555's kernel besides TurboBoost MOD... These can make up a great combination
------------------------------------------------
That pretty "thanks" button's waiting for U, in case I helped
Sent from a shaken up HTC Sensation XE using... Whatever! Differs?!

R: Strange battery stats.
I dont think they affected the rom so much as to ruin the battery or drain it faster. Charge the battery and reset stats 90% i bet it works.
Sent from my GT-I9300 using xda app-developers app

I have had this problem through numerous roms so i have put it down to the phone and not the software.

R: Strange battery stats.
It can happen at any point if u ever flashed a not-so-secure or old rom.
Once the battery percentages, for any reason, get corrupted, theyre gonna stick to being corrupted no matter how many flashes u try.
Really its not that difficult u just have to press a button (i believe, as i said, in clockwork but im not sure) and all that will happen is when phone reboots battery will get reanalyzed and resynced, nothing else gets modified. might save ur day.
Sent from my GT-I9300 using xda app-developers app

I do this every time I flash a new rom anyway, but thanks for the suggestion.
Sent from my HTC Sensation using xda app-developers app

Does it still happen with the Anker?

killbubble said:
It can happen at any point if u ever flashed a not-so-secure or old rom.
Once the battery percentages, for any reason, get corrupted, theyre gonna stick to being corrupted no matter how many flashes u try.
Really its not that difficult u just have to press a button (i believe, as i said, in clockwork but im not sure) and all that will happen is when phone reboots battery will get reanalyzed and resynced, nothing else gets modified. might save ur day.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
You are describing 'battery calibration'. Its complete urban legend hogwash. It does absolutely nothing.
Wiping the battery stats has no effect whatsoever on battery performance. Those stats get wiped every time you charge the phone to 100%.
However, you can improve the battery reporting by charging to 100%, then draining all the way to 0%, then charging all the way back to 100% again without rebooting (other than after it shuts off at 0%). This is not calibration. Its just running the battery through a full charge and discharge cycle. This helps to stabilize how the draining is reported. It does nothing to actually make the battery last longer.
Sent from my GT-P5110 using xda app-developers app

Then please explain how I can drain my battery to 0% if my phone shuts off every minute. As long as I keep the charger plugged in, my phone will function like it should. However, as soon as the charger gets disconnected, it's only a matter of minutes before the screen goes blank and my phone shuts itself off without notice. Then when I reboot, chances are that either 1) it won't even boot and shut itself down at the splash screen 2) it's gonna give me a strange battery reading and shut itself off again after 10 seconds of activity. So how am I supposed to drain my battery if I can't even get it to drain, because it constantly shuts itself off?

tcusniper said:
I have similar problems. My phone also shuts down very often. When I turn it on again it shows strange readings like 0%, 11% etc. If I reboot my phone it might either stick with the percentage it showed before, not boot at all, or jump back to 80% or so. However, it never takes long before it shuts down again. Even happens sometimes when using my charger...
Chances of my phone shutting down instantly are nearly at a 100% when using the flash while taking a picture.
I don't know what to think in terms of whether or not this is a software or hardware issue as many other people have similar problems, all on different roms and kernels.
Currently I am on:
Firmware build: 3.33
Kernel: Sultan Kernel r21
Rom: JBMIUIv4.1 #3.3.1
Click to expand...
Click to collapse
The stock battery that comes with the Sensation is known to have this problem. I experienced this problem quite often before I was rooted; a new 1900mAh battery remedied the issue. Here is proof that this isn't software related: after becoming extremely frustrated with the lags and random reboots of my recently ICS-updated Sensation, I decided to do a factory reset. The phone restarted normally with all data wiped and everything seemed like normal again. So I was just sitting there happily with my phone at 50% battery. I decided to open the browser to go and browse the web, and the phone was quite goo- BOOM! RANDOM REBOOT! After my phone finished rebooting, it was at 4% battery!
Moral of the story: HTC doesn't know how to make batteries. Buy a third party battery like Anker.

hellfire191 said:
Hi, my phone battery keeps messing up. I have done a battery calibration but it still seems to mess up.
The main problem is that the battery runs out, 10 mins later I have like 3 percent battery, then that runs out so I start to charge it, it charges up to around 20 percent then it jumps to around 60 percent.
By the way I have terrible battery life too - maybe 1 to 2 hours of use before running out.
Edit - I didn't say this but I am on albinoman887's cm10.1 rom.
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battery life varies from phone to phone, kernel to kernel and rom to rom. but your battery behavior sounds exceptional.
Like stated previously, wiping battery stats in recovery (Battery Calibaration does exactly the same on rooted phones) has never proved me to be efficient. Random shutdowns occur when the phone isn't recieving enough juice from the battery, the demand in voltage will exceed the CPU's capacity and the phone shuts down to prevent damage.
here's something you can try and it worked for me. I used to have random shutdowns and poor battery life aswell.
Wedge a piece of paper, like 0,5-1mm thick, between the upper right corner of your battery, and the battery housing. This way the battery will be presses firmly against the 4 contact pins. Also make sure the contacts are clean.
maybe it's just a battery issue. What does the battery info section say about the condition of the battery?

My anker battery arrived 2 to 3 days ago and it seems to have stopped all problems with the battery.
Thanks for all the suggestions though. I will refer back to this thread if any other problems arise.