Okay my phone said I had 34 percent battery I rebooted my phone now its reading 67 percent wth how do I fix this..
Sent from my HTC Sensation 4G
Use battery calibrator fron Play. Run it 100% and press "calibrate" in the app. Can also wipe battery stats as well.
Sindroid said:
Use battery calibrator fron Play. Run it 100% and press "calibrate" in the app. Can also wipe battery stats as well.
Click to expand...
Click to collapse
Who is it made by I see a lot of results when I search that.
Sent from my HTC Sensation 4G
Any of them will do. They all delete the same file to calibrate.
Once you calbrate, let the battery dtain all the way to power off for the first cycle.
Also, its not unusual for the battery percentage to jump alot on reboot. It will drop down ro the correct amount pretty quickly.
Sent from a rebel ship by storing the message in an R2 unit. (Help me, XDA. You're my only hope)
Skipjacks said:
Any of them will do. They all delete the same file to calibrate.
Once you calbrate, let the battery dtain all the way to power off for the first cycle.
Also, its not unusual for the battery percentage to jump alot on reboot. It will drop down ro the correct amount pretty quickly.
Sent from a rebel ship by storing the message in an R2 unit. (Help me, XDA. You're my only hope)
Click to expand...
Click to collapse
Thx for that info
Sent from my HTC Sensation 4G
It could be the first signs of a dying battery as well.
Sent from my HTC Sensation Z710e using XDA
You do not need to drain your battery completely down (until the phone powers off) to get an accurate calibration. Anything below about 15% will be good enough.
Although it is rare, letting a li-ion battery drain completely to zero can sometimes cause it to fail. There are sensors in these batteries that makes sure that they don't ever drain completely (even when we see zero, there is still some power left - similar to when your car gas light comes on but you still have a few gallons of 'reserve fuel) Sometimes these sensors can fail. If that happens, you have a bad battery.
Also, after calibrating give it a few full cycles to gain top accuracy. The jump you see after a reboot is normal, though it shouldn't be as severe as you mentioned.
Hi my friend,
Some say "battery calibration" app works some says it doesn't, don't really know but "wipe battery datas" in recovery does the same.
this happens when you flash different roms and some roms does not include battery calibration scrips. My rom does and i never have this issue, works very well.
this issue resolves by itself when wiping data and giving it 2 or 3 complete cycles.
Be patient then , all will comme back to normal.
I also saw a new app called "battery repair", i just bought it on market, but can not tell the results now because too early. i took it because it repair yes but most of all give you more time of use ...
cheers
Related
I have a known issue.. but with a twist
When.my battery is showing that there is like 90% left. After a while and I reboot, there is only 4% left. That's a.known issue. But here is twist. If I reboot again, its back to 80% orso. And when I do.another reboot there is 75% remaining..
Another reboot shows 74% and so on
I'm sorry if this a known issue.. i don't have much time to search things while I'm working 45h a week.
Anyone knows a.solution for this?
I wiped battery stats. Discharged a few times and the.HTC trick.. non of these work
additional info.
stock battery
HB 1.23
ICS ARHD 6.0.3 before IC and VS
stock kernel
happening for like 2 weeks now
Sent from my HTC Sensation using XDA App
i dont think you can do anything about it. people say that turning off the device instead of restarting helps. i also have battery jumps but not nearly as extreme as yours. maybe ~5-10% jump. if its a drop jump then it will stay there until the real percentage reaches that said level, if its higher then it will drop quickly to the real percentage. from my experience that is, not a big deal
walkinhotdog said:
i dont think you can do anything about it. people say that turning off the device instead of restarting helps. i also have battery jumps but not nearly as extreme as yours. maybe ~5-10% jump. if its a drop jump then it will stay there until the real percentage reaches that said level, if its higher then it will drop quickly to the real percentage. from my experience that is, not a big deal
Click to expand...
Click to collapse
I know that 10-15% drops are normal.
but a drop of 70% is a bit odd.
Its not very serious but its quite anoying, i think its affecting my battery life
Try flashing the battery fix. It helped me out. I had same problem but not so radical.
Sent from my HTC Sensation XE with Beats Audio using XDA Premium App
Use your phone for a while without changing roms or clearing stats, don't charge until your battery is totally dead then don't take of charge until it is totally full, once full turn off and charge till light green, then back on and charge till green then repeat till you feel confident that your battery us full, then go through full discharge and repeat it will settle down but patience us required, remember stay with 1 rom radio and kernel without clearing anything for at least 4 days
Sent from my HTC Sensation Z710e using xda premium
Attached is the fix I used to remove the problem with battery percentage changeing after restart.
I do not remember where I found it, but it helped me.
Do i flash this in cwm?
sent from my Sensation on CM7 Alpha#10
Flashed successful for me
sent from my Sensation on CM7 Alpha#10
The battery fix stopped working 2 days in. Bacl to innacurate readings
sent from my Sensation
Miui won't even let me open the file to flash it
EDIT: flashed & fixed
Sent from my MIUI.us Sensation 4G using XDA App
Does wiping battery stats too often due to flashing alot of roms reduce stock battery performance ?? Being curious..
Sent from my HTC Sensation Z710e using xda premium
No. The battery stats file is only used for determining battery drain. It does not have an effect on battery life one way or the other.
dallashigh said:
No. The battery stats file is only used for determining battery drain. It does not have an effect on battery life one way or the other.
Click to expand...
Click to collapse
Thanks and while were at it dont wanna open a new thread is there any script for disabling the charging led ?? It gets very annoying at night in the bedroom :/
I remember i had such a script on my old x10 ... Thanks in advance
Sent from my HTC Sensation Z710e using xda premium
wiping battery stats does nothing to your battery and actually the battery stats are wiped automatically every time u fully charge ur phone:
Dianne Hackborn said:
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away.
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Click to collapse
source: Dianne Hackborn - Android Framework Engineer on Google+
PuscH said:
wiping battery stats does nothing to your battery and actually the battery stats are wiped automatically every time u fully charge ur phone:
source: Dianne Hackborn - Android Framework Engineer on Google+
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Click to collapse
If the battery stats get wiped every time it hit 100 how one can keep the same battery life daily ?
Sent from my HTC Sensation Z710e using xda premium
The only way to really preserve a battery is to fully discharge, fully charge. Mine was going great until I slacked on it. I started only charging a little, fully charging from 40%, etc etc. Now, I'm on 100% for two hours. Then I drop fast to about 80%. Then I float around 80 to 60% for a few hours but once I go below 60%, boom, 20%. The last 20% go quick too.
Don't get me wrong, my battery life is basically the same, but now it's really inaccurate. If you start to feel this, the best thing you can do is fully charge, fully discharge. Do that a lot, over and over. It might help correct it, might not.
But to reiterate, no, wiping battery stats does nothing.
sshede said:
The only way to really preserve a battery is to fully discharge, fully charge. Mine was going great until I slacked on it. I started only charging a little, fully charging from 40%, etc etc. Now, I'm on 100% for two hours. Then I drop fast to about 80%. Then I float around 80 to 60% for a few hours but once I go below 60%, boom, 20%. The last 20% go quick too.
Don't get me wrong, my battery life is basically the same, but now it's really inaccurate. If you start to feel this, the best thing you can do is fully charge, fully discharge. Do that a lot, over and over. It might help correct it, might not.
But to reiterate, no, wiping battery stats does nothing.
Click to expand...
Click to collapse
Okay thanks alot but can a custom rom really make that much difference on battery life's performance ?? On my old x10 no matter how many scripts tweaks for batttery they would add i would always get same battery life is it the same here ?
Sent from my HTC Sensation Z710e using xda premium
Hello, i'm a newbie to xda developers... I had some problems with my Sensation... I am really a newb to those stuff since i never rooted a phone... The problem with my phone is that the battery doesn't slowly drain... I let it to charge for like 5 hours to get to full 100% and then from 100% it goes to 60% in like 10-20 minutes while i use it ... Other times the battery shows to have more power and other times it straightly goes to 40% from 100%... It drains so quickly i can't even go outside with my phone since its battery gets empty... Sometimes, even if the phone is 60% it randomly shuts down and have to restart it for like 5 times to get it work for at least 10 minutes. Might it be the battery? I tried going to recovery mode but i get the red triangle with an exclamation sign in it... Any reply is appreciated, thanks!
Maybe your battery is rubbish and you should just buy another one.
Although is one thing you should try first, recalibrate your battery.
What all these methods amount to is how to teach your phone about battery performance. Calibration is about enabling your phone to provide accurate estimates of remaining battery charge and will not, in and of itself extend the usage you get on a single charge (though it may possibly prevent the phone going into power save modes prematurely, wrongly believing the battery to be lower on power than it is).
The phone stores information about the battery in a file called batterystats.bin which sits in /data/system. Normally you won't have direct access to that file, but you could find it with an app such as root explorer, which allows complete access to the phone's file system.
When you install a new ROM, or a new battery, or perhaps periodically as the battery ages and performs differently, you need to get a new set of battery performance statistics.
By charging the phone to 100% you are starting at the known maximum for the battery. At this point, the batterystats.bin file needs to be deleted, which forces the phone to recreate the file from scratch, using the information it is about to collect. It doesn't matter what method you use, battery calibration app, or from within recovery - they all do the same thing and delete this file.
The phone is then allowed to drain fully. This gives the other end of the scale, the known minimum. The phone then has then experienced the full charge/discharge cycle of the battery and stored that performance information in a new version of the batterystats.bin file.
Now that the information has been saved, the phone will (hopefully) be able to provide accurate estimates of the battery charge level, regardless of how much of the battery charge you use before reconnecting the charger.
If you don't have root access you can download an app from the market called "Battery Calibration". It does the same thing, deletes the batterystats.bin.
If I helped you in any way hit the THANKS button
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Device: Sensation 4G
ROM: Hyper Non Sense v3.3
Kernel: Faux 009b4 (edited by Yank555)
Radio: 11.24A.3504.31_M
RIL: 4.0.0037HMQ
Recovery: 4EXT_Recovery_Touch_v1.0.0.5_RC5
Battery: Anker 1900
Thank you for your time. You explained really well and i appreciate that... So, to use the calibration apps i need to have root access... should i search a tutorial on that or is there one on the forums? If the calibration can't fix it, should i get another battery? Thank you again! Maybe i should try to buy a new battery first... is rooting safe? can i get back to my old firmware?
Smexhy said:
Thank you for your time. You explained really well and i appreciate that... So, to use the calibration apps i need to have root access... should i search a tutorial on that or is there one on the forums? If the calibration can't fix it, should i get another battery? Thank you again!
Click to expand...
Click to collapse
Well, yes I guess you should root your phone first, but I'm not sure
A guide on how to root your Sensation can be found here .You should only do the steps 1-3.
If you don't want to root there is another method somebody wrote (I haven't tested it personally)
1. Turn off your phone.
2. Fully Charge.
3. When getting 100% signal, unplug quickly.
4. Pull off the battery and put it anywhere.
5. Wait for 180 seconds minimum
6. Put back the battery on the right side.
7. Turn on the phone.
Than you should be OK:good:
If you get the same result after "battery calibration" I suggest you buy another battery.
Hit THANKS if I helped you
Hello, i have two more question related to this thread... Is there a way to calibrate my battery without root access? And will buying a new battery surely fix my problem? Thanks again!
You might be able to get a calibration application in the playstore. However most I've seen require root access. But look, they're might be some without root requirement. As for your second question. Nothing is ever 100% guarantee that it will solve the issue. These are suggestions based on the information you provided regarding your issue . How can anyone be 100% certain that will solve your issue. It's defiantly a possibility it will solve the problem but no, for 100% certainty, I don't think anyone can say that. It's defiantly worth a try ! Then you can see if getting the battery solved the problem. I hope it does fix your issue and wish you the best .like I said, no one can be 100% sure but it's defiantly worth trying!Sent from my HTC Sensation 4G using xda premium
Everything said in this topic is PURE NONSENSE. It was even featured on the front page that wiping the battery stats DOES NOT DO ANYTHING. See this article for more information > http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
The only thing you CAN do is charge your battery to 100%, and let it drain to 0%.
Aparently, after i cleaned my battery contacts it DOESNT jump to random values... drains continously.. SO i think the problem is fixed... atleast for a while! I'm new using a smartphone and the battery is a little 2 weak as i was used to my other non-smartphones... I think that's the battery life a 1520AMH can offer me on a sensation! The uptime for it was 6 hours from 100%... thats really weak ( i used the web and games).
Hi everyone,
I'm currently running CM10 on my AT&T One X. It runs great, but when I hit 6% battery, it suddenly jumps to 1% and shuts off a few seconds later. I've tried recalibrating by using the app available on Google Play, as well as letting it shut off and recharging all the way. Neither have seemed to fix the issue. My question is; are there any other ways to recalibrate the battery, or simply cause the battery indicator to display the proper percentage?
Thanks to anyone with advice!
Have you looked to see if anyone else on CM10 reporting anything similar?
In any case, the battery meter is not all that accurate in the best of conditions. I wouldn't trust the meter being below 10% to mean you have much significant battery. Really, by the time you hit 20% or so, you should be looking to charge.
Why you letting it get that low? Normally around 10% I plug in.
Sent from my HTC One XL using Tapatalk 2
It's not habitual or anything. I just normally don't plug it in until I go to sleep, and sometimes it dies before that time comes.
CheesyNutz said:
Why you letting it get that low? Normally around 10% I plug in.
Sent from my HTC One XL using Tapatalk 2
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Click to collapse
This isn't based on facts but my 2 cents is that because the calibration of the battery isn't wiped, it's not accurate. There's no wipe battery stats in TwRP. If you ever notice the battery percentage in TWRP after flashing many ROM, it differs from the actual phone.
I wipe the batterystats.bin in data/system when full then reboot but who knows if that even works. I had my phone turn off @ 3% once so who knows but charge it as soon as it gets in the teens. Its bad for the battery if it keeps powering off when low.
sent from rooted 2.20 & always flashed 1X
HYE_TECH said:
This isn't based on facts but my 2 cents is that because the calibration of the battery isn't wiped, it's not accurate. There's no wipe battery stats in TwRP. If you ever notice the battery percentage in TWRP after flashing many ROM, it differs from the actual phone.
I wipe the batterystats.bin in data/system when full then reboot but who knows if that even works. I had my phone turn off @ 3% once so who knows but charge it as soon as it gets in the teens. Its bad for the battery if it keeps powering off when low.
Click to expand...
Click to collapse
You're right: that isn't based on facts.
Battery stats get reset every time you charge your phone. Manually wiping them does nothing.
http://www.xda-developers.com/android/google-engineer-debunks-myth-wiping-battery-stats-does-not-improve-battery-life/
This issue has been discussed in other threads. Seems to be specific To CM roms only.
Some report steep declines from 40% to zero in seconds. You seem lucky.
Sent from my HTC One X using xda app-developers app
Okay good to know; thanks. I'll be patient.
c5satellite2 said:
This issue has been discussed in other threads. Seems to be specific To CM roms only.
Some report steep declines from 40% to zero in seconds. You seem lucky.
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
I wouldn't worry about it. Mine turns off anywhere from 5 to 15%. The battery percentage is just an estimate based on the software, it's not an actual indicator. As such there are tons of variables that can affect when the phone is actually out of battery.
TWRP also doesnt report battery correctly and it has nothing to do with the stats. It is taking more of an educated guess as to where it's at. Believe it has something to do with are phones.
thanks for the info.. i have experienced this issue also
Battery percentage is guessed at based on voltage. As the battery drains, voltage decreases slightly. Yes it is an educated guess. Every battery behaves slightly differently and has a unique profile or discharge curve. Some may be steeper than others at the end, but the device should learn this and adjust accordingly. An internal short in a composite battery like this would also exhibit this behavior, only exhibiting itself at certain voltage levels(dependant on location of physical short in battery) where voltage drops to 0 at that moment. I have seen this issue in defective packs where they work fine most of the time, but then zero all of a sudden. I'm not saying this is your problem, but the case design/new soft shell battery(no hard plastic shell to protect against the internal layers from being squeezed together) is wide open to physical damage from the phone being compressed.
Try a stock ROM and verify it works normally. If not, the battery is damaged.
My One X has never shut off before it reached 1%. I unlocked it 4 days after getting it in the beginning of June and have been running CR ever since and never had a steep battery decline.
Sent from my HTC One X using xda app-developers app
Ok on start I am sorry guys for my language. I am in UK only one year so I need to learn a lot
10 min a go I back from SSC because I have problems with battery/ charging and foulty speaker
Italian Job 1.0.0 - big battery drain and battery go dawn after restart by 30-60%!
XXMC8 - no battery drain but battery go dawn after restart by 30-60%!
Stock UK GB XXLK7 -no battery drain but battery go dawn after restart by 30-60%!
So I bought new original samsung battery 1500mAh - no changes
So I bought batttery 3500mAh with special cover - no vissible battery drain, this battery can handle my phone by ~ 20 hours of playing AVI movie, 720p in loop in MX Player so very good score but battery go dawn after restart by 30-60%!
All battery was tested in my Ace 2 and in my girlfriend Ace 2 (she have fully working phone with no problems) and she have good scores on all batteries but best is on 3500mAh with special cover ( above x2 than standard)
So i went to SSC and they: (stock GB, 0 flash counters)
- take my phone without documents on free guarantees (only box)
- I must come back for that phone in this friday
This above is for + but:
- they **** that work because I have in my ducuments copy a lot of bugs! (street , town)
- they checked my speaker in noisy room (it did not take nearly as booming)
- for those guys after restart when phone loses 30% battery power is normal!
So I go after tomorrow for my phone and we will see ( They will make updates to JB! and they change speaker/ charging module)
Photo for proof attached
If they dont repair my phone I do not buy samsung phone NEVER AGAIN!
EDIT: 3 hours waiting for a response about taking my phone!
EDIT 2: that 3500mAh battery must be loaded 8 hours to get 100% form 0%. (standard charger )
I really want to know what the whole battery dropping after restart thing is about, forever happening to me and sometimes the battery completely dies. It was the same on my original Ace S5830 I got a few years ago.
If you find out, please tell! haha.
After receiving the reply I upload it here
Have nfc version and ni problems with battery with much using and sometimes little bit playing i rech two days
I dont have problem with battery (any) but with phone hardware
I must agree with you guys regarding battery drain. It's suspicios and I am also aware of a fast battery drain from 100% to 65% in just a couple of hours, or very fast after a restart.
Maybe this is the way android should work. I was thinking there was a problem with my phone, but seeing similar behaviour with yours, it must be something related to the android system.
I'm on JB me1 and i haven't this battery dran problem. After the night i just lose 3-7% battery
When I have 100% and I off my phone and turn on battery go down to 50-60% immediately in one secund! It must by hardware foult...this is not normaly working android, for me
Really i don't have sth like that so that isn't real android
Shadowcareful said:
Really i don't have sth like that so that isn't real android
Click to expand...
Click to collapse
What?
I said i think it's not normal that you have this battery drain
Yeah I know ...
michal89chz said:
Yeah I know ...
Click to expand...
Click to collapse
well i dont have that
sometimes when i reboot my phone it goes from 45% to 47%
and some times from 45% to 44%
This is ok
I thought that is not really a battery draining. But it just about battery calibrating. Your phone need to calibrate the battery. Thats the problem.
riyosakura said:
I thought that is not really a battery draining. But it just about battery calibrating. Your phone need to calibrate the battery. Thats the problem.
Click to expand...
Click to collapse
lol actually "calibrating" is just a myth. It doesn't really do anything.
Sent from my GT-I8160 using xda app-developers app
Dr01nE said:
lol actually "calibrating" is just a myth. It doesn't really do anything.
Sent from my GT-I8160 using xda app-developers app
Click to expand...
Click to collapse
Really??
However, I've never done any battery calibrating..but I read in some thread, need to calibrate the battery, so there will be no battery misdisplay on the battery icon...logically, I thought, our devices will some time miscommunicate with the battery because there are no battery parameter to make the system understand how much the battery stored....
But I don't know if it just a myth...
riyosakura said:
Really??
However, I've never done any battery calibrating..but I read in some thread, need to calibrate the battery, so there will be no battery misdisplay on the battery icon...logically, I thought, our devices will some time miscommunicate with the battery because there are no battery parameter to make the system understand how much the battery stored....
But I don't know if it just a myth...
Click to expand...
Click to collapse
its normal to see 99% when unplugging from charger, 3%-10%(Max) drop on rebooting. Battery is usually inaccurate after charging, what I do is plug it in then reboot. then it displays the right value after unplugging, usually my battery status is really inaccurate but it returns to normal afterwards (it'll show charging icon even when unplugged and charge to 100 then stops and returns to real level). I don't believe in this calibrations and have found enough proof its useless, I think most xda users agree too. Try searching some threads.
Sent from my GT-I8160 using xda app-developers app
riyosakura said:
Really??
However, I've never done any battery calibrating..but I read in some thread, need to calibrate the battery, so there will be no battery misdisplay on the battery icon...logically, I thought, our devices will some time miscommunicate with the battery because there are no battery parameter to make the system understand how much the battery stored....
But I don't know if it just a myth...
Click to expand...
Click to collapse
Dr01nE said:
its normal to see 99% when unplugging from charger, 3%-10%(Max) drop on rebooting. Battery is usually inaccurate after charging, what I do is plug it in then reboot. then it displays the right value after unplugging, usually my battery status is really inaccurate but it returns to normal afterwards (it'll show charging icon even when unplugged and charge to 100 then stops and returns to real level). I don't believe in this calibrations and have found enough proof its useless, I think most xda users agree too. Try searching some threads.
Sent from my GT-I8160 using xda app-developers app
Click to expand...
Click to collapse
Actually you don't even have to search xda, there you go fellows: https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT If this isn't enough then I don't know what is.
My phone back to me from SSC with xxlk7, so no JB...(after 24hours in service)
If someone want to know how good is 3500mAh battery please go to my battery thread in general section.