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[Q] Weird Battery Problem??

This happened twice today..
For e.g: If my battery is showing 15% and then i restart my phone it suddenly shows 50% remaining..
Am using Battery Indicator to show me in % how much is remaining (though even the htc battery shows the difference in this case)
Any idea why is this happening and how to solve this??
Oh and how to stop the: Show Me app?? Keeps restarting and sucking my battery..

Could someone please help me out here with this weird problem??
It keeps happening everytime i restart my Sensation..

Try wiping your battery stats from CWM.Then charge battery fully>drain fully>then charge again it should be calibrated. oh and use startup cleaner in the market.

arturohernandez said:
Try wiping your battery stats from CWM.Then charge battery fully>drain fully>then charge again it should be calibrated. oh and use startup cleaner in the market.
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Click to collapse
Its a 1 day old Sensation.. Havent rooted it yet..

I saw the same with my mine. I allowed the battery to drain until the phone shut off and recharged over night to 100%. I did that for a few cycles and mine seems fine now.

The battery % indicators only show what the phone software *thinks* it currently is.
The Sensation battery ranges from approx 4200mV (full) to 3000mV (empty).
The problem is sometimes the phone thinks those numbers are different. E.g. when you turn on your phone for the very first time, or flash a new ROM, if your battery was half full at 3700mV the phone would then think that was the 100% level (why they say charge a battery fully for a long time before turning your phone on for the first time).
This leads to various funnies such as a battery seemingly staying full for ages (the phone thinks 100% is much less than 4200mV so until you drop to the phones level your battery %age doesn't go down), and seemingly rapid drains where you end up with less than 10% left - but probably find in reality if you left it your battery would go on for ages at 0%.
Over time it learns, but best to wipe your stats after a long charge so it knows that 4200mV is 100%, and then don't charge your phone again until it physically runs out of juice so it knows what is 0%.
Another useful tip is to install the free BatteryLife widget from CurveFish from the market. That shows you the current voltage level as well as %age, so armed with the knowledge that full = approx 4200mV and empty = approx 3000mV you get an exact idea of how much you have left.

Mine does the same thing even draining/charging for few cycles
Sent from my HTC Sensation Z710e using XDA App

chrisw99 said:
The battery % indicators only show what the phone software *thinks* it currently is.
The Sensation battery ranges from approx 4200mV (full) to 3000mV (empty).
The problem is sometimes the phone thinks those numbers are different. E.g. when you turn on your phone for the very first time, or flash a new ROM, if your battery was half full at 3700mV the phone would then think that was the 100% level (why they say charge a battery fully for a long time before turning your phone on for the first time).
This leads to various funnies such as a battery seemingly staying full for ages (the phone thinks 100% is much less than 4200mV so until you drop to the phones level your battery %age doesn't go down), and seemingly rapid drains where you end up with less than 10% left - but probably find in reality if you left it your battery would go on for ages at 0%.
Over time it learns, but best to wipe your stats after a long charge so it knows that 4200mV is 100%, and then don't charge your phone again until it physically runs out of juice so it knows what is 0%.
Another useful tip is to install the free BatteryLife widget from CurveFish from the market. That shows you the current voltage level as well as %age, so armed with the knowledge that full = approx 4200mV and empty = approx 3000mV you get an exact idea of how much you have left.
Click to expand...
Click to collapse
Yeah... I went to sleep with 100% charged and when i woke up it was yet 100% charged.. And when i check the battery stats it shows 0s but i was asleep for 8 hours.. Any way to solve this on an unrooted phone?

I had the same problem today too! Thought my battery was kicking ass...turns out it was 18% when I restarted my phone
sent from my s-off sensation!

byrdman164 said:
I had the same problem today too! Thought my battery was kicking ass...turns out it was 18% when I restarted my phone
sent from my s-off sensation!
Click to expand...
Click to collapse
What did you do about it?

Anyone know what to do about this to an unrooted phone??
Or is this a defective piece and i should get a replacement??

Mines has done the same but I haven't had the chance to calibrate it yet to know if that'll help. It has helped on previous phones. I don't think your device is defective though.

Aspeds2989 said:
Mines has done the same but I haven't had the chance to calibrate it yet to know if that'll help. It has helped on previous phones. I don't think your device is defective though.
Click to expand...
Click to collapse
How do you calibrate an unrooted device??

I think it calibrates itself after a few charge/discharge cycles. Always charge it a lot longer than when the green light comes on (because if the phone thinks the 100% level is a lot lower than it should be, that green light may come on early), and for the first couple of charges let it dry out rather than topping up.
And install that BatteryLife widget from CurveFish, then you can look at the voltage. 4200mV = full, 3000mv = empty, regardless of what your battery %age says. Mine currently says 51% and 3753mV.

Having the same problem here, restarted my phone afew times now and the battery % keeps going up, then dropping rapidly! :s
Sent from my HTC Sensation Z710e 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.

[Q] Inaccuracy battery indicator?

My battery level indicator displays a higher battery level after rebooting. With an app (Battery Indicator) which is translating level in %, its about 10%.
Rebooting in recovery is also resulting in an higher level, also about 10%.
I'm using Insertcoin 3.4.2 with 2.6.35.14Brickedv1.5 kernel.
Has the custom rom or kernel something to do with displaying inaccurate battery level stats or is this something normal?
Keeping rebooting doesn't deliver me a full charge btw, now that would be something nice

I have somewhat of a similar problem.
I use hyper non-sense 0.5 and today my cell wouldn't charge beyond 99%. I rebooted and only had 92% .
I wiped batterystats before rom flash..
Maybe these issues are somewhat related?

It's known that the battery reporting driver is **** and bugged.
Also, if you reboot, you'll get messed up battery reports than if you power off then back on.
Sent from my HTC Sensation 4G

Only wipe battery stats when your battery is charge to 100%
Support TrevE! Fuh Q CIQ!

Ok, thanks for the advice. Good to know not to be too much confident on the battery indicator.
Have found another threads about the battery stats and the behaviour of li-ion batteries also (the search button was gone for a few days, but back at the moment ), reading already...

Battery Calibration - Once and for all!

I have read every possible thread you can imagine on battery calibration and can never seem to do this correctly, is it a myth? No matter what I do, if I restart my phone, I end up going from 100% down to 85-86% EVERY SINGLE time.
This is after "bumping it". (letting it drain all the way to 0% and then fully charging again).
This is after using BATTERY CALIBRATION in the market which was told works well. (again, advises you charge to 100% then "calibrate" it via the APP).
This is after charging it to 100% and restarting it, recharging up to 100%, restarting and recharging (repeat, repeat, repeat), and then going into bootloader and wiping battery stats.
None of these have worked, does someone have a sure fire EXACT way to do this properly or is at ALL just hype? Help.

Your battery will never say 100% after a reboot. It sucks up a lot of juice on a power up and the battery doesn't charge during powering on. I usually drop about 10% on a reboot using the rezound battery. That is normal behavior. If you can charge to 100% with the phone on then you're fine.
Sent from my ADR6400L using Tapatalk

Interesting because I've never lost 15-16% consistently although I guess it using some juice to cycle makes sense. Anyone else seen 10+ every restart? Thanks for the help man in either case.

Hmm, never seen this before. On my phone which is running skyraider uc to 768mhz and uv only loses 1percent on reboot or doesn't even lose charge at all. Not sure why your phone is doing that.
Sent from my ADR6400L using xda premium

I am running G3D uc to 768mhz and on restart I may lose 1 - 5% at most depending on if i made any changes that take a longer restart. I bet you are overclocked? no need, under clock to 768mhz and your phone will run as smooth as 1.2mhz..maybe smoother while using less battery

Running liquid 3.2.1 on my T-Bolt with the Rezound battery and I only lose 1% battery at boot up. Never lost more...oh and I have never calibrated my battery. Also I get about 8-10 hours of moderate to heavy use too. All stock clocks btw

Just to double check - or reword... do it this way - if you aren't already.
Charge to 100%.
Wipe Batt stats
Drain to zero without recharging in any way (AKA let it drain until it shuts off on you).
Recharge until 100% (till it says 100%, not just "green."). And unplug.
And you're good! Try that and check back in.

Battery Calibration doesn't work

Ignore the % number, it means nothing. Use the battery monitor widget or another program that will show you the actual battery voltage. A fully charged battery will be somewhere around 4200 mV and a discharged battery between 3600 and 3200 mV. I've also noticed that the rezound battery throws things off as the mAh rating doesn't match up to either of the thunderbolt batteries. This is why the battery monitor widget shows the rezound battery as 2750 mAh instead of 1620.

What I recommend to my Evo peeps [which I have] is this:
-Charge battery to 100%
-Wipe battery stats in recovery
-Let the battery drain, so it manually powers off
-Charge to 100% again, and good to go

Battery Calibration doesn't work
Click to expand...
Click to collapse
By this I mean Google Developers have came out recently and said battery calibration does not increase or have any effect on the state of battery life. All wiping the battery stats does is wipe the stats as to what has been using the battery, etc.
still handy for when you flash a new rom to wipe the stats, but it doesn't improve battery life at all.

smoody said:
By this I mean Google Developers have came out recently and said battery calibration does not increase or have any effect on the state of battery life. All wiping the battery stats does is wipe the stats as to what has been using the battery, etc.
still handy for when you flash a new rom to wipe the stats, but it doesn't improve battery life at all.
Click to expand...
Click to collapse
Actually, the post from Dianne @ Google said nothing about calibration. She only talked about wiping or deleting the battery stats file.

You are correct, however all the battery calibration apps available only delete the battery stats file. So like I said it doesn't affect battery life.

wherestheboost said:
Just to double check - or reword... do it this way - if you aren't already.
Charge to 100%.
Wipe Batt stats
Drain to zero without recharging in any way (AKA let it drain until it shuts off on you).
Recharge until 100% (till it says 100%, not just "green."). And unplug.
And you're good! Try that and check back in.
Click to expand...
Click to collapse
This is what I thought I had done but will do again. The problem is even after its 100% and in between your 1st and 2nd step when I reboot into recovery, it's no longer at 100% and sometimes down to 85%ish. I will try again tho, thanks!

http://rootzwiki.com/_/articles/wiping-battery-stats-is-pointless-says-google-r316
That pretty much says it. Wiping stats and calibrations are placebos.

l7777 said:
That pretty much says it. Wiping stats and calibrations are placebos.
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Click to collapse
Yeah I read that too. But when I flashed my first rom on the tb I got abysmal battery life. 25% in like 20 min. I recalibrated and it got so much better. If its a placebo its a good one.
Sent from my HTC ThunderBolt using Tapatalk

all that says is the the deleting the batterybin file doesn't help. The battery is handled by each by software outside of android itself. So, following the battery calibration from the manufacturer of your phone still might help.

jefferyriess said:
Yeah I read that too. But when I flashed my first rom on the tb I got abysmal battery life. 25% in like 20 min. I recalibrated and it got so much better. If its a placebo its a good one.
Sent from my HTC ThunderBolt using Tapatalk
Click to expand...
Click to collapse
25% in 20 minutes means nothing. The % is an estimated number. Find an app that reads the battery voltage if you want a true reading on the battery's charge. Full is 4.2 volts, dead is between 3.0 - 3.6 volts. Battery life should only be measured in hours from full to dead. I've seen my phone stick on 100% for several hours before as well as sticking at 20% for several hours. Ignore the %. Anyone spending all day looking at a % to judge their battery life should go back to a battery indicator that doesn't show %.

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.
Click to expand...
Click to collapse
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.