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Example: my battery says 50%, I reboot, and now it's down to about 40%.
What's the deal? Anyone else have this problem?
I'm running Das BAMF 1.6.2, stock kernel.
I've noticed since I got the tbolt day one. Im in the 15% range when reboot. My screen freeze after lightning strike for 3 minutes. Was hoping the new update would fix it but update now delayed. Never again will I be the first in line for phone.
Sent from my ADR6400L using XDA Premium App
The percentage drops but it stays at whatever that percentage is for an hour or five depending on how much I'm using my phone.
because your battery gauge is lying to you and not reporting accurately prior to reboot.
dbisch said:
Example: my battery says 50%, I reboot, and now it's down to about 40%.
What's the deal? Anyone else have this problem?
I'm running Das BAMF 1.6.2, stock kernel.
Click to expand...
Click to collapse
Thought I had commented on this, whoops.
So have you calibrated your battery since flashing 1.6.2?
If not you need to do so, as this will fix your issue, and help your battery life.
nosympathy said:
Thought I had commented on this, whoops.
So have you calibrated your battery since flashing 1.6.2?
If not you need to do so, as this will fix your issue, and help your battery life.
Click to expand...
Click to collapse
What do you use to calibrate it? Wiping the battery stats?
Check out this thread: http://forum.xda-developers.com/showthread.php?t=871051
Basically the meter is lying because keeping your phone at 100% while charged is not so good for long term life of the battery. So once you get a full charge it doesn't keep the battery full, and when you take it off the charger the meter quickly catches up to reality.
So don't worry, it's supposed to happen this way.
nosympathy said:
Thought I had commented on this, whoops.
So have you calibrated your battery since flashing 1.6.2?
If not you need to do so, as this will fix your issue, and help your battery life.
Click to expand...
Click to collapse
How do I calibrate it?
There's an app on the Market called BatteryCalibration, works well.
Sent from my ADR6400L using Tapatalk
nosympathy said:
Thought I had commented on this, whoops.
So have you calibrated your battery since flashing 1.6.2?
If not you need to do so, as this will fix your issue, and help your battery life.
Click to expand...
Click to collapse
It may help battery life, but it won't fix the issue
dbisch said:
How do I calibrate it?
Click to expand...
Click to collapse
There are several threads explaining this but you just:
-Charge to 100% and boot into recovery
-Select advanced>wipe battery stats
-Use phone normally until battery dies and it powers off
-Charge back up to 100% (preferably while still off)
Edit- if you are running das bamf you can also clear them from the toolkit.
dirtyfingers said:
It may help battery life, but it won't fix the issue
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Click to collapse
It will fix the issue that the OP is having of the phone dropping % drastically when they reboot. If you are talking about the phone dropping from 100 to 95% or so after you unplug, then no it won't, because that is actually a safety feature that you do not want to fix, unless of course you want to burn your phone up.
ska.t73 said:
It will fix the issue that the OP is having of the phone dropping % drastically when they reboot. If you are talking about the phone dropping from 100 to 95% or so after you unplug, then no it won't, because that is actually a safety feature that you do not want to fix, unless of course you want to burn your phone up.
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Click to collapse
Thanks. I just want my battery % to be accurate.
dbisch said:
Thanks. I just want my battery % to be accurate.
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Click to collapse
No problem, if that is what you want then doing a battery stats wipe will do that. It should be done actually everytime you change ROMs or upgrade a ROM.
Just follow Dirtyfingers instructions, or use a Battery Calibration app from the market
ska.t73 said:
No problem, if that is what you want then doing a battery stats wipe will do that. It should be done actually everytime you change ROMs or upgrade a ROM.
Just follow Dirtyfingers instructions, or use a Battery Calibration app from the market
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Click to collapse
Man, don't say that in the dev area, or the irc. There was someone named Confucius on there yesterday reaming people for wiping battery stats. It wasn't pretty.
Doug B.
dvgb173 said:
Man, don't say that in the dev area, or the irc. There was someone named Confucius on there yesterday reaming people for wiping battery stats. It wasn't pretty.
Doug B.
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Click to collapse
It is a bad idea to wipe battery stats? Can it damage the phone?
dbisch said:
It is a bad idea to wipe battery stats? Can it damage the phone?
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Click to collapse
No your phone stores how long it takes to die charge etc. and when you change roms these stats obviously change and therefore wiping the stats allows the phone to really calibrate to the new rom. At least I think that's how it is.
Sent from my ThunderBolt using XDA App
dbisch said:
Example: my battery says 50%, I reboot, and now it's down to about 40%.
What's the deal? Anyone else have this problem?
I'm running Das BAMF 1.6.2, stock kernel.
Click to expand...
Click to collapse
This happens to me and it annoys me everytime it does it. I dont know why for some reason this is a recurring thing with HTC phones.
My battery drops 10-15% rather quickly when I unplug it but I believe this is actually normal with newer Li-Ion charging techniques.
Mine drops about 5% after a reboot. I reset my batteries stats today and hope that will improve my battery life, but I must say I got about 8 eight hours today with fairly heavy use and a few reboots.
I have a question about battery calibration.
After I deleted batterystats.bin, the meter seems to be working fine (prior to deletion, battery meter was not correct - for example, only 50% battery was remaining, but battery meter would be around 70%.
Anyway, do I have to calibrate battery each time I flash new/upgrade ROM?
I've been changing to different ROMs frequently nowadays to find best battery ROM. So I was wondering if I have to calibrate battery each time I flash new ROM.
Thank you!
Honestly I dont think it matters much. I've heard arguments both ways but what I do is I calibrate when I first get me phone (or a new battery) and thats it. I get great battery like even going between roms
johnkim0011 said:
I have a question about battery calibration.
After I deleted batterystats.bin, the meter seems to be working fine (prior to deletion, battery meter was not correct - for example, only 50% battery was remaining, but battery meter would be around 70%.
Anyway, do I have to calibrate battery each time I flash new/upgrade ROM?
I've been changing to different ROMs frequently nowadays to find best battery ROM. So I was wondering if I have to calibrate battery each time I flash new ROM.
Thank you!
Click to expand...
Click to collapse
You MUST delete the battery stats.bin everytime you flash a new rom
window7 said:
You MUST delete the battery stats.bin everytime you flash a new rom
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Click to collapse
I don't agree with the word must. It would be a good thing after a few flashes but EVERY time is not needed.
Sent from my Nexus S 4G using XDA App
window7 said:
You MUST delete the battery stats.bin everytime you flash a new rom
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Click to collapse
Um.. no. theres a proper way to caliberate the battery.
If that was the case then I'd be wiping my battery stats everyday because of CM7 nightlies
But yeah, I'd probably say just do it if you feel that your battery life is awful. Maybe once every 3-5 months? I've had the NS since it first came out and I haven't wiped my battery stats. Battery life is still amazing, so I don't know.
Hi,
I was running MIUIXperience V5 and everything was fine till got a random reboot last evening and after that, battery started draining very fast doing nothing 20-25% in an hour. Mobile is heating up a lot now back side near camera and charging also became very slow (30-40% in 4 hours). Tried full wipe and reinstalling the ROM but still the same issue, wiped battery stats as well.
I was getting 25-35 hrs before this so doesn't look like a fault in battery. Any help will be highly appreciated. Thanks.
Seems a hardware issue to me. Maybe try to swamp battery's and see if the current one you're using is busted.
DeuXGod said:
Seems a hardware issue to me. Maybe try to swamp battery's and see if the current one you're using is busted.
Click to expand...
Click to collapse
Thanks for your help but I still doubt the battery as when charging in powered off, it charge well & quickly as before
Can you try another ROM? If it would work ok with another ROM that would put the hardware suspicion aside. If it still keeps the same with a different ROM, then it's most definitively a hardware issue.
DeuXGod said:
Can you try another ROM? If it would work ok with another ROM that would put the hardware suspicion aside. If it still keeps the same with a different ROM, then it's most definitively a hardware issue.
Click to expand...
Click to collapse
I have tried another ROM and same ROM with clean install, they seem good as before the issue but as soon as I enable root permissions, battery started to drain fast again (35% in an hour)
got a similar issue with mine, usually my battery stills 20hrs, and that's ok for my usage, I'm running brainmaster cm9, but same with CDA 2.0.0, randomly the phone, in some case after a reboot or disconnecting power cable, start to drain battery and become hot, in battery usage stats AndroidOS is the main issue and android.process.acore the resource that never sleep,
I think this can came from a bad deep idle management on some rom-kernels combo or ics 4.0.4 issue, but I nobody to say this...
stremax said:
got a similar issue with mine, usually my battery stills 20hrs, and that's ok for my usage, I'm running brainmaster cm9, but same with CDA 2.0.0, randomly the phone, in some case after a reboot or disconnecting power cable, start to drain battery and become hot, in battery usage stats AndroidOS is the main issue and android.process.acore the resource that never sleep,
I think this can came from a bad deep idle management on some rom-kernels combo or ics 4.0.4 issue, but I nobody to say this...
Click to expand...
Click to collapse
I tried different MIUI Roms but issue remained same. Then I installed Androxide after full wipe and now seems to be working fine (72% after 7hrs). Still can't figure out what is the issue that different variants of MIUI Roms after clean install and battery starts to discharge heavily.
Tried going back to MIUI but probelm came again and after restoring to Androxide, again working fine
moodi_ali said:
I tried different MIUI Roms but issue remained same. Then I installed Androxide after full wipe and now seems to be working fine (72% after 7hrs). Still can't figure out what is the issue that different variants of MIUI Roms after clean install and battery starts to discharge heavily.
Tried going back to MIUI but probelm came again and after restoring to Androxide, again working fine
Click to expand...
Click to collapse
I suggest to install an app like Quick System Info anche see id there is a process running high on CPU usage: there you can see its log and try to understand what's happening...
BTW, I started to have some massive drain with the last CM9 nightlies: it was the Phone app that sucked all the juice in a few hours.
I wiped & reflashed dozen of times, checking if the drain was caused by some app, until I used Quick System Info and saw from the logs that the problem was the new 2g/3g toggle widget: I had set it to "3g preferred" but this caused a loop. Setting it to "2g only"/"3g only" fixed the issue.
First, MIUI is a Chinese ROM.
Second, Chinese things are always known for bad quality.
So MIUI is bad
Really, dude? Maybe you should take the tin foil hat off.
my NS4G with MIUI 2.6.1 and Matrix 20.0 Kernal goes to 98% as soon as i pull off the charger. if i use it for 45 minutes unplugged its dead. if i use it while its plugged in, it will die!
should i get a new battery?
Yeah that doesn't happen to me... I would try a full wipe and reflash the same ROM (or a different one) and reflash kernel.
If that doesn't work then I would try another battery because that drain seems abnormal
I just wanted to say that I have been having similar battery problems. Using the exact same ROM and Kernel as the OP, today my phone died within 6 hours of use, with the screen having been on for no more than 50 minutes. I also turned off data, and sync during this time, and had my screen's brightness at the minimum.
I've wiped and flashed AOKP b-38 today, and the consumption seems to be much better.
Any thing to help?
thought i was the only one.
is it the kernal?
or is it because its time for a new battery?
How could I test to find out which it is...
Swap kernels. Probably easiest way to test.
Very possible its just an old worn out battery.
Sent by pocket technology.
hoping its just an old battery.
ive switched to CM9 / TouchWiz mod thinking it might be the ROM
im going to use the stock kernal from CM9 for a day to see if i could tell a difference.
ordered a new battery anyways.
saw on a forum somewhere a guy complaining about this problem since he switched to ICS ROMs .. hopefully thats not the case because i LOVE 4.0.X
mathkid95 said:
Yeah that doesn't happen to me... I would try a full wipe and reflash the same ROM (or a different one) and reflash kernel.
If that doesn't work then I would try another battery because that drain seems abnormal
Click to expand...
Click to collapse
same problem, switched from MIUI to CM9 ... still using Matrix 20.0
Try wiping battery stats
Sent from my Nexus S using xda premium
If it were processes/functionality causing your battery drain, that quick, the phone would be piping hot at the same time!
superng888 said:
Try wiping battery stats
Sent from my Nexus S using xda premium
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Click to collapse
No. Why would that have any effect on anything?
Sent by pocket technology.
JiminyCricket64 said:
If it were processes/functionality causing your battery drain, that quick, the phone would be piping hot at the same time!
Click to expand...
Click to collapse
yes, the screen also gets EXTREMELY hot!
Well in that case, what have you got installed? If you have apps constantly syncing, that could be part of the problem. What are your battery stats saying is using the most battery? My phone gets warm, but as expected since its being used. If its not being used,it could be a rogue app or the phone could be constantly searching for a good signal.
Sent by pocket technology.
i have barely any apps.
i only have facebook, xda, sportscenter and instagram installed besides GApps.
i have the problem even before i download apps as i just flashed CM9
also its so bad, that if i start using my battery when its @ 10% PLUGGED IN, it will eventually die on me. even though its charging..
Hi, currently Im facing a somewhat weird issue. Firstly, my battery is not able to reach 100%. Im not talking about the charger "purposely" doing so, but the led remains orange for hours, and stuck at 99%. Secondly, the battery sometimes increases and decreases at its own "free will", most of the time decreasing by 2%. When left on standby, the battery reaches 50% from full charge in just a matter of 5 or 4 hours.
Its not the battery since I recently purchased an anker battery and facing the same problem still. Anyone can provide a valuable input?:laugh:
Rom: VenomS
redfreak said:
Hi, currently Im facing a somewhat weird issue. Firstly, my battery is not able to reach 100%. Im not talking about the charger "purposely" doing so, but the led remains orange for hours, and stuck at 99%. Secondly, the battery sometimes increases and decreases at its own "free will", most of the time decreasing by 2%. When left on standby, the battery reaches 50% from full charge in just a matter of 5 or 4 hours.
Its not the battery since I recently purchased an anker battery and facing the same problem still. Anyone can provide a valuable input?:laugh:
Rom: VenomS
Click to expand...
Click to collapse
I am facing the same issue as well. As far as I know, Sensation battery stats remain wierd with almost all custom ROMs. The back up is quite fine as last 40% of the battery last quite long. I have tried calliberating battery and it didn't changed a thing.
Sent from my HTC Sensation Z710e
MrJukeHardbane said:
I am facing the same issue as well. As far as I know, Sensation battery stats remain wierd with almost all custom ROMs. The back up is quite fine as last 40% of the battery last quite long. I have tried calliberating battery and it didn't changed a thing.
Sent from my HTC Sensation Z710e
Click to expand...
Click to collapse
Are you on a non-sense based rom? I think the rom is not the issue, perhaps the kernel?
redfreak said:
Are you on a non-sense based rom? I think the rom is not the issue, perhaps the kernel?
Click to expand...
Click to collapse
I currently on ViperS JB with Sense 4+. I like the feel of sense so never tried any other ROMs. It could be an issue with kernel but I am not sure of it.
Sent from my HTC Sensation Z710e
MrJukeHardbane said:
I currently on ViperS JB with Sense 4+. I like the feel of sense so never tried any other ROMs. It could be an issue with kernel but I am not sure of it.
Sent from my HTC Sensation Z710e
Click to expand...
Click to collapse
At least im not alone
Is it possible that sebastian's kernel is the fault? Any suggestions from anyone else?
I have another issue with the battery
When its charging it gets normal until 50% after that the numbers increase very slow but i think is fully charged because if I reset the phone then it shows 100% and works normal.
Also if y use it with battery > 50% with no reset, the % keeps in the same number until it starts to drop normally.
I changed the batery thinking that will solve the problem, but nothing changed with the new battery.
Its not a critical issue, but its annoying
flacket said:
I have another issue with the battery
When its charging it gets normal until 50% after that the numbers increase very slow but i think is fully charged because if I reset the phone then it shows 100% and works normal.
Also if y use it with battery > 50% with no reset, the % keeps in the same number until it starts to drop normally.
I changed the batery thinking that will solve the problem, but nothing changed with the new battery.
Its not a critical issue, but its annoying
Click to expand...
Click to collapse
Should be a common issue then. Im not alone at least :victory: