Database Info

Battery Issue..Please help..

I am using the Sensation on stock ROM..and about two weeks ago got a minor update to it (which provided the power saver option on the quick settings menu)..And since about a week now, my phone takes an elongated time to charge..previously, it took only about 2 hours to fully charge the phone, but now it takes more than 3 hours..plus, it takes only about 1.5 hours to charge from 0% to 80%, but afterwards, it takes more than another 1.5 hours to charge the remaining 20%..but after about 90% it literally stops charging further, no matter how long I keep the phone plugged to the charger..But when I restart the phone at that time, it indicates the battery level as 100%..
Does anyone else has the similar kind of problem? And can anyone please suggest me what to do? Is it a problem with my battery or is it a software issue? Please help me..
Thanks in advance..
Sent from my HTC Sensation Z710e using XDA App

Perhaps you need to reset the "stats" of the battery ?
Charge the device to full battery; let it keep charging until the battery says it is fully charged. Do not just wait until the light is green, it isn't always fully charged, causing a lot of inaccuracies. (You can check by going to: Settings » About device » Status » Battery Level = Full.)
Boot to recovery mode and delete the battery stats
NOTE: To have the most accurate of battery stats, reboot the device immediately after wiping the battery stats and wait for CyanogenMod to boot completely to the desktop. Once your entire boot is done and you have full access to the device, go ahead and pull the charger and continue with this troubleshooter.
Do not charge the device until after draining the battery completely, resulting in it automatically shutting off.
Recharge the device completely and then use as you normally would.

Prabash said:
I am using the Sensation on stock ROM..and about two weeks ago got a minor update to it (which provided the power saver option on the quick settings menu)..And since about a week now, my phone takes an elongated time to charge..previously, it took only about 2 hours to fully charge the phone, but now it takes more than 3 hours..plus, it takes only about 1.5 hours to charge from 0% to 80%, but afterwards, it takes more than another 1.5 hours to charge the remaining 20%..but after about 90% it literally stops charging further, no matter how long I keep the phone plugged to the charger..But when I restart the phone at that time, it indicates the battery level as 100%..
Does anyone else has the similar kind of problem? And can anyone please suggest me what to do? Is it a problem with my battery or is it a software issue? Please help me..
Thanks in advance..
Sent from my HTC Sensation Z710e using XDA App
Click to expand...
Click to collapse
I am also facing almost same issues with battery. The phone charges very fast from 0% to around 75%. The remaining 75% to 100% takes a long time. But it does reach 100%. It doesnt stop before. And if I reboot the phone when charge is 80% or 90% it will immediately show 100% on reboot. So which value was correct? Before or after reboot?
Another thing is during the day when I am using the phone and the battery is at any particluar level for ex. 45%. And I reboot the phone for any reason. After rebooting the battery level is shown as increased to 50% or any other value. How does battery increase on rebooting the phone?
My theory is that HTC Sensation is unable to read battery level accurately and therefore such incorrect values are reported. BTW this happens on both the stock battery and my current Anker 1900mAh battery.

Hey mate, did this error started to occur after you updated your phone or was it there prior to the update as well?

This situation was there before the update too. Maybe some experts here will give their opinion on this.

[Q] Power Issue.. Please Help!

Hi all,
There's this problem with my phone that everytime I charge it, it takes an elongated time to do so. This issue first emerged when I was on stock GB after a minor OTA update which added the power saver toggle to the quick settings menu..The problem is that it takes about 4-5 hours to fully charge the phone, and if I rebooted in the middle of charging when it's about 70% or 80%, it suddenly shows that the phone is fully charged, and the indicator becomes green! But afterwards the battery drains as quickly!
Now I have S-Off and using ARHD 6.6.3 ROM, but it seems the problem persists ..I wiped battery stats as soon as I flashed the ROM as well..Although it's not a problem I cannot live with, it's annoying enough when it happens.
Can someone please help me? And suggest me what to do?

Prabash said:
Hi all,
There's this problem with my phone that everytime I charge it, it takes an elongated time to do so. This issue first emerged when I was on stock GB after a minor OTA update which added the power saver toggle to the quick settings menu..The problem is that it takes about 4-5 hours to fully charge the phone, and if I rebooted in the middle of charging when it's about 70% or 80%, it suddenly shows that the phone is fully charged, and the indicator becomes green! But afterwards the battery drains as quickly!
Now I have S-Off and using ARHD 6.6.3 ROM, but it seems the problem persists ..I wiped battery stats as soon as I flashed the ROM as well..Although it's not a problem I cannot live with, it's annoying enough when it happens.
Can someone please help me? And suggest me what to do?
Click to expand...
Click to collapse
its common thing...the battery calibration is not proper that's all...
also you need to wipe stats once you charge your phone to 100%
then battery will try to calibrate ...and after 3-4 full complete cycles (100-0 and 0-100)
the battery will settle..
the battery drain will be there ...whenever you flash a rom or flash a kernel....battery only settles atleast after 2 full cycles
EDIT: also download currentwidget from market..as the name says its a widget..so you will see it in widgets once you installed it...this will give you more proper reading of battery...when you plug your phone to charge...and when current widget reads 0mah then your battery is charged completely...(it might take a long time to read 0mah...but charge it until you see 0mah)..then wipe the battery stats...so after this battery calibration will be proper
Also the sudden jump of battery percentage is due to improper battery calibration
so dont worry you got no problem

So
I read somewhere that you are not supposed to let the phone go to zero because it could cause your phone to not power back on anymore..is this fact. I couldn't find where I read it to back and read again. Mine has been doing some weird things as well...the led turns green before it is 100% and it goes from 100% and drops to like 89% out of no where.

toreone said:
I read somewhere that you are not supposed to let the phone go to zero because it could cause your phone to not power back on anymore..is this fact. I couldn't find where I read it to back and read again. Mine has been doing some weird things as well...the led turns green before it is 100% and it goes from 100% and drops to like 89% out of no where.
Click to expand...
Click to collapse
when i meant 100%-0% means until your phone turns off due to less power..it might not(or won't be) be 0% then
as i told you that kind of jumps are common ...in my case it went to 60% to 100% when i rebooted ...also the dropping used to be in large scale too

ganeshp said:
its common thing...the battery calibration is not proper that's all...
also you need to wipe stats once you charge your phone to 100%
then battery will try to calibrate ...and after 3-4 full complete cycles (100-0 and 0-100)
the battery will settle..
the battery drain will be there ...whenever you flash a rom or flash a kernel....battery only settles atleast after 2 full cycles
Click to expand...
Click to collapse
Thanks mate! I will try this out! cheers!

[Q] hi i have this very odd battery problem

i have a htc sensation xe with beats audio
phone is rooted and flashed with OrDroid 4.0 Ics 4.0 Sense... before i also tried ARHD... bricked kernel...
Stock battery
i have this very weird problem..
my phone has inaccurate reading of the battery..
here are the issues:
1. the phone drains the battery by 2% each interval instead of 1%.. I mean its like, 100%,98%,96%,95%,94%,92%,90%
2. the phone lasts longer on the terminal part of the battery.. its like its the longest 3% of the phone's battery life!
3. whenever the phone is drained, and if i insert a charger, it will have inaccurate battery level reading.. here is an example:
my phone is at 9% of its battery life... i plug the charger to the phone.. it will charge.. after charging for around 2 hours it will show that the battery is at 57%... i plug the charger out.. restart the phone and bam! the battery will be at 100% or 99%.. i mean, its annoying.. i have to restart the phone everyday so that i can get an accurate reading of the phone's battery..
anyway...
i am done recalibrating the phone.. ive done this 3 times now...
and i also did every method for recalibrating the phone..
ive also done this one: http://forum.xda-developers.com/showthread.php?t=1558140&page=5
the smali editting thingy..
and ive also done placing a small business card on the battery to push the battery closer to the pins..
the only one i havent tried is to buy a new battery which is expensive! i dont believe the problem is in the battery though.. i think its in the firmware or something... i dont know.. anyway.. can anyone help me on this one??

Francis064 said:
i have a htc sensation xe with beats audio
phone is rooted and flashed with OrDroid 4.0 Ics 4.0 Sense... before i also tried ARHD... bricked kernel...
Stock battery
i have this very weird problem..
my phone has inaccurate reading of the battery..
here are the issues:
1. the phone drains the battery by 2% each interval instead of 1%.. I mean its like, 100%,98%,96%,95%,94%,92%,90%
2. the phone lasts longer on the terminal part of the battery.. its like its the longest 3% of the phone's battery life!
3. whenever the phone is drained, and if i insert a charger, it will have inaccurate battery level reading.. here is an example:
my phone is at 9% of its battery life... i plug the charger to the phone.. it will charge.. after charging for around 2 hours it will show that the battery is at 57%... i plug the charger out.. restart the phone and bam! the battery will be at 100% or 99%.. i mean, its annoying.. i have to restart the phone everyday so that i can get an accurate reading of the phone's battery..
anyway...
i am done recalibrating the phone.. ive done this 3 times now...
and i also did every method for recalibrating the phone..
ive also done this one: http://forum.xda-developers.com/showthread.php?t=1558140&page=5
the smali editting thingy..
and ive also done placing a small business card on the battery to push the battery closer to the pins..
the only one i havent tried is to buy a new battery which is expensive! i dont believe the problem is in the battery though.. i think its in the firmware or something... i dont know.. anyway.. can anyone help me on this one??
Click to expand...
Click to collapse
Did you try wiping the battery stats from recovery ?
[EDIT] I just discovered that wipind battery stats doesnt improve or solve battery problems ! sorry for the post !
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
You can try this instead: http://www.xda-developers.com/android/tune-your-androids-battery-life-with-betterbatterystats/ / https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats&hl=en

I got the exact Same Problem. I bought a Used Sensation a few days ago. I will receive the Anker battery tomorrow, i hope that fixes the issue.
Gesendet von meinem HTC Sensation XE with Beats Audio Z715e mit Tapatalk

Francis064 said:
i have a htc sensation xe with beats audio
phone is rooted and flashed with OrDroid 4.0 Ics 4.0 Sense... before i also tried ARHD... bricked kernel...
Stock battery
i have this very weird problem..
my phone has inaccurate reading of the battery..
here are the issues:
1. the phone drains the battery by 2% each interval instead of 1%.. I mean its like, 100%,98%,96%,95%,94%,92%,90%
2. the phone lasts longer on the terminal part of the battery.. its like its the longest 3% of the phone's battery life!
3. whenever the phone is drained, and if i insert a charger, it will have inaccurate battery level reading.. here is an example:
my phone is at 9% of its battery life... i plug the charger to the phone.. it will charge.. after charging for around 2 hours it will show that the battery is at 57%... i plug the charger out.. restart the phone and bam! the battery will be at 100% or 99%.. i mean, its annoying.. i have to restart the phone everyday so that i can get an accurate reading of the phone's battery..
anyway...
i am done recalibrating the phone.. ive done this 3 times now...
and i also did every method for recalibrating the phone..
ive also done this one: http://forum.xda-developers.com/showthread.php?t=1558140&page=5
the smali editting thingy..
and ive also done placing a small business card on the battery to push the battery closer to the pins..
the only one i havent tried is to buy a new battery which is expensive! i dont believe the problem is in the battery though.. i think its in the firmware or something... i dont know.. anyway.. can anyone help me on this one??
Click to expand...
Click to collapse
From what I can understand you don't have any problem at all. The same think happens to me. Whenever I reboot the phone it will show at first more charge than it has, but after a few minutes it will go to where it was. Don't worry about percentage drops or increments, if your battery lasts as it should. I myself thought that battery calibration way essential after flashing, etc, etc. But now I am convinces that it has nothing to do with battery life.
Just IGNORE the percentage and enjoy your phone

Notarzt23 said:
I got the exact Same Problem. I bought a Used Sensation a few days ago. I will receive the Anker battery tomorrow, i hope that fixes the issue.
Gesendet von meinem HTC Sensation XE with Beats Audio Z715e mit Tapatalk
Click to expand...
Click to collapse
hey can u update me if replacing the phone's battery solved the issue?? if it solved it then i guess i'd buy mine a new one too..

Hi there, as above poster said I'm not sure this is really a problem. Mine also does this say I'm on 95% then when I reboot it will say 100% for a bit then go back to 95% the true percentage. So what I'm saying is sometimes after reboot an inaccurate percentage will show for a time then it will catch up and show the correct percentage. It will happen with a new battery as well this is just how our device works. I recently purchased a new mugen 3500mah battery and after reboot I still get the same issue. It's not really a problem it's just the device catching up with the accurate battery percentage. As for the two percent increments, my device does not do that.. not sure why it's draining at 2% increments unless this is just how much your device drains for a specific amount of time. Perhaps your battery is draining At 2% increments because this is your consumption.? I really wouldn't worry too much unless it's jumping increments without being rebooted, like going from 73% to 60% to 50% all in a matter of five minutes. If that's the case then I would become concerned and likely think it's time to purchase a new battery. But you are only draining at 2% increments and I really don't think it's cause for alarm. Do watch it closely and if the percentages start to jump and drain at bigger increments, then perhaps invest in a new battery. But for now I agree with above poster and really wouldn't be too concerned. As I said just keep an eye on it and if it gets worse as the example I said, then get yourself a new battery. Until then I think your ok for now. I hope this helps. I wish you the best!
Sent from HTC sensation 4g, S-off, rooted with revolutionary, running Viper Rom, Sense 4.1, firmware 3.33, Kernel -xxxPachaxxx PYDX-stable 2, Mugen battery 3500mah, Please press thanks

Have ever tried letting your battery drain 100%. until the device shut's down. and then take the battery out for oh let's say 5 second's. And then put the battery back in hit the power button . If it powers on your battery isn't fully discharged .and if it is plug it in and let it charge to 100% just my two cent's but worth a try
Sent From My Viper S 1.3.0

Francis064 said:
hey can u update me if replacing the phone's battery solved the issue?? if it solved it then i guess i'd buy mine a new one too..
Click to expand...
Click to collapse
yes i will report back here in about 24h.

Notarzt23 said:
yes i will report back here in about 24h.
Click to expand...
Click to collapse
I had the same exact op problem ,bought my self from HTC a new battery the 1730mah instead of the 1520mah that came with sensation and problem gone all together,I like to add that battery widget app read my old battery which is original as a 1580mah instead of 1520mah,but with the new battery all is ok , now I always wait until its below 20% to charge it ,hope this helps

realsis said:
Hi there, as above poster said I'm not sure this is really a problem. Mine also does this say I'm on 95% then when I reboot it will say 100% for a bit then go back to 95% the true percentage. So what I'm saying is sometimes after reboot an inaccurate percentage will show for a time then it will catch up and show the correct percentage. It will happen with a new battery as well this is just how our device works. I recently purchased a new mugen 3500mah battery and after reboot I still get the same issue. It's not really a problem it's just the device catching up with the accurate battery percentage. As for the two percent increments, my device does not do that.. not sure why it's draining at 2% increments unless this is just how much your device drains for a specific amount of time. Perhaps your battery is draining At 2% increments because this is your consumption.? I really wouldn't worry too much unless it's jumping increments without being rebooted, like going from 73% to 60% to 50% all in a matter of five minutes. If that's the case then I would become concerned and likely think it's time to purchase a new battery. But you are only draining at 2% increments and I really don't think it's cause for alarm. Do watch it closely and if the percentages start to jump and drain at bigger increments, then perhaps invest in a new battery. But for now I agree with above poster and really wouldn't be too concerned. As I said just keep an eye on it and if it gets worse as the example I said, then get yourself a new battery. Until then I think your ok for now. I hope this helps. I wish you the best!
Sent from HTC sensation 4g, S-off, rooted with revolutionary, running Viper Rom, Sense 4.1, firmware 3.33, Kernel -xxxPachaxxx PYDX-stable 2, Mugen battery 3500mah, Please press thanks
Click to expand...
Click to collapse
well.. when i think i will observe the battery for a while.. but the problem is when i charge the phone it could only charge to 50-60% after 4 hours.. then after restarting the phone it will go to 100%.. i mean, that's a huge difference right?

Yes that's quite a difference. Have you cleared stats in recovery?
sent from HTC sensation, soff, 3.33 firmware, viper Rom, sense 4.1, mugen battery. please press thanks if I helped in anyway.

Francis064 said:
well.. when i think i will observe the battery for a while.. but the problem is when i charge the phone it could only charge to 50-60% after 4 hours.. then after restarting the phone it will go to 100%.. i mean, that's a huge difference right?
Click to expand...
Click to collapse
Lads it is an well documented HTC bug, you cant do anything about it....Flash CM9 or CM10 and your phone will read battery status prop. so have blast with phone wit or without sense

realsis said:
Yes that's quite a difference. Have you cleared stats in recovery?
sent from HTC sensation, soff, 3.33 firmware, viper Rom, sense 4.1, mugen battery. please press thanks if I helped in anyway.
Click to expand...
Click to collapse
Hey realsis, read the link in my first post. ... I thought clearing battery stats will solve the problem related to battery troubles till I read that.
Sent from my HTC Sensation XE with Beats Audio using xda app-developers app

So i got the anker a few hours ago and the bug presists. i made full charge and calibrated the battery. it is still mostly discharging 2 % at a time and the phone stay a very long time on 100%.

Battery issue after 4.1.2 update

Recently I've updated my Note through OTA to 4.1.2.
I've spot that after update the Note is just draining the battery.
I could read about 10 hours on it before, and now it is only about 6 !!!!!
I even do not mention gaming, which is draining the battery in 2.5-3h from 100% to about 5%. I could play approx. 5-6 hours before.
It's ridicules.
Did any of you spot the same thing?
I haven't installed any additional apps after update that may "help" to discharge the battery.
The values above are based on Screen usage time in Battery menu.
Any suggestions?

After the update, I'm facing recharging issues. The tab is taking twice the time of what it used too to recharge to 100%.

i haven't spot any issues with charging.
.

Same here.Used to get 10 hours of screen on time,now i am lucky if i get 8 hours!
Verstuurd van mijn GT-N7100 met Tapatalk

Same here...
Some tips :
Kill all apps, switch to offline/airplane, and power saving mode when charging..
Still not working?
Try reboot your device once or twice if necessary..
And your device will charge normally
Work on my gnote...
I hope it will work for you too
Correct me if i'm wrong

Im using juice defender with good results, I lost a pretty noticeable amount of battery time after 4.1.2, too.

Maybe a problem with the battery stats?
Try to drain the battery empty and full charge afterwards.

Gray44 said:
Maybe a problem with the battery stats?
Try to drain the battery empty and full charge afterwards.
Click to expand...
Click to collapse
It will damage the lithium battery when you drain it till empty

I think it is Wi-Fi that drains the battery !!!!
Usually I was leaving the tablet with wi-fi on all the time. After 4.1.2 update it takes approx 2% of battery per hour !!!!!!!!!! when you do not use the tablet but wi-fi is on, so after night in the drawer you had approx 10-15% drained.
When I turned the wi-fi off and left it overnight i haven't loose even a 1% during the night !!!!!
I have to try to work on it as usual but with wi-fi turned off, it will be difficult though as usually i play on-line or browsing the net
I think they f#^%*d something in 4.1.2 update with wi-fi energy consumption. hope they will repair it in next update.
.

zaydvath said:
It will damage the lithium battery when you drain it till empty
Click to expand...
Click to collapse
I mean, just let the device turn off by itself, and after that, charge 100%.

kayteck1 said:
Recently I've updated my Note through OTA to 4.1.2.
I've spot that after update the Note is just draining the battery.
I could read about 10 hours on it before, and now it is only about 6 !!!!!
I even do not mention gaming, which is draining the battery in 2.5-3h from 100% to about 5%. I could play approx. 5-6 hours before.
It's ridicules.
Did any of you spot the same thing?
I haven't installed any additional apps after update that may "help" to discharge the battery.
The values above are based on Screen usage time in Battery menu.
Any suggestions?
Click to expand...
Click to collapse
Yeah, I had this problem after I updated too. It was also laggy. I did a factory erase and now it works better. I think it is still draining more than before, but not as bad as after I updated. I think a good rule of thumb is to wipe everything after an update and start all over. You could also try wiping and flashing the rom for a fresh install.

I suggest you to change your rom to germany stock 4.1.2...
It will solve your charging problem
Tested on my gnote

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
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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.