Database Info

15% is the new 0% [battery]

hi, when i charge my se xperia 2.3.3 x10i to full capacity overnight, i wake and i have 100% battery and all is good.
when i first updated to 2.3.3 the battery life shot up massively, getting almost 40 hours of good usage out of it (tested when i didn't charge overnight, but my norm is to charge every night)
more recently, i have been encountering an issue with the 15% mark, in that it shuts off... in fact it is reacting much the same way as when it used to drop to 0%, in that you could turn it on, get a phone number from the phone book and then it would shut down again.
i have looked into it a little and thought that i was suffering from the battery calibration issue, so i rooted, calibrated battery and ta da!
no change
whilst rooted however, i have used titanium backup to freeze all the bloatware (timescape, media junk, foreign languages, setup files etc) but this feels more like housekeeping than doing any good. i have left the phone off charge to see the percentage i can get to and 15% is my lucky number!
im not overly convinced on using cooked roms, the working / non working list isnt what i look for in a phone, and i will continue to use the phone as designed (3g / wifi / bright screen / etc)
now i know that it uses li-on batteries which don't suffer from battery memory, so im feeling that this is more of a system / software issue.
the phone is about a year old.
thoughts?

KelvinMead said:
hi, when i charge my se xperia 2.3.3 x10i to full capacity overnight, i wake and i have 100% battery and all is good.
when i first updated to 2.3.3 the battery life shot up massively, getting almost 40 hours of good usage out of it (tested when i didn't charge overnight, but my norm is to charge every night)
more recently, i have been encountering an issue with the 15% mark, in that it shuts off... in fact it is reacting much the same way as when it used to drop to 0%, in that you could turn it on, get a phone number from the phone book and then it would shut down again.
i have looked into it a little and thought that i was suffering from the battery calibration issue, so i rooted, calibrated battery and ta da!
no change
whilst rooted however, i have used titanium backup to freeze all the bloatware (timescape, media junk, foreign languages, setup files etc) but this feels more like housekeeping than doing any good. i have left the phone off charge to see the percentage i can get to and 15% is my lucky number!
im not overly convinced on using cooked roms, the working / non working list isnt what i look for in a phone, and i will continue to use the phone as designed (3g / wifi / bright screen / etc)
now i know that it uses li-on batteries which don't suffer from battery memory, so im feeling that this is more of a system / software issue.
the phone is about a year old.
thoughts?
Click to expand...
Click to collapse
Probably the ROM reading battstats.bin wrong. I wouldn't worry though, even though it says 15% your battery most likely really is at 0%.

yeah, that was my thoughts, but this leads me to two issues, one, how do i get it back, and why has it recently started doing it!
i realise that people out there can't help with two, but maybe one!

Have you tried a new battery?
sent from my Sensation on CM7 Alpha#10

i think your battery is "dead"...
after 2 years my battery jumps from 70% to 50%...
and from 35% to 20%...
after more than 1000+ chargings i would say its normal....

Don't quote me on this, but isn't there a way to empty your battstats.bin? That would reset it and your levels would begin retesting themselves after one full drain and one full charge.

Jesushaxyou said:
Don't quote me on this, but isn't there a way to empty your battstats.bin? That would reset it and your levels would begin retesting themselves after one full drain and one full charge.
Click to expand...
Click to collapse
battery Calibration
but if your battery is dead.... its dead. theres is nothing you can do.

At least try to dump the battstats before coming to conclusions. If it doesn't work then hit up your carrier for a new battery.
EDIT: Reread first post. Looks like you did. Sorry.

OWND
sent from my Sensation on CM7 Alpha#10

vabeachfc3s said:
POST COUNT +1!!!!
sent from my Sensation on CM7 Alpha#10
Click to expand...
Click to collapse
Fix't.....

Lol. Come on man its all fun and games. Have a good time.
sent from my Sensation on CM7 Alpha#10

I know, I've realized over the years that I can't take the internet seriously. lol

Yea boss i wasnt tryna make fun of u at all.
sent from my Sensation on CM7 Alpha#10

i get the battery dead thing, and i guess thats the way forward... they must have made bigger batteries than 1900mah by now!
it just seems strange that after a year of charges, plus 20% for fun, is only 500 of my allotted 1000 charges!
ho hum

boom! after rooting, fps unlocking, deleting all the stock se stuff, installing xrecovery and other assorted tweaks, i can now get my battery down to 1% before turning off! whoop!
now to break the 24 hour normal usage / battery life and ill be happy!

Great stuff! thanks for sharing...

KelvinMead said:
hi, when i charge my se xperia 2.3.3 x10i to full capacity overnight, i wake and i have 100% battery and all is good.
when i first updated to 2.3.3 the battery life shot up massively, getting almost 40 hours of good usage out of it (tested when i didn't charge overnight, but my norm is to charge every night)
more recently, i have been encountering an issue with the 15% mark, in that it shuts off... in fact it is reacting much the same way as when it used to drop to 0%, in that you could turn it on, get a phone number from the phone book and then it would shut down again.
i have looked into it a little and thought that i was suffering from the battery calibration issue, so i rooted, calibrated battery and ta da!
no change
whilst rooted however, i have used titanium backup to freeze all the bloatware (timescape, media junk, foreign languages, setup files etc) but this feels more like housekeeping than doing any good. i have left the phone off charge to see the percentage i can get to and 15% is my lucky number!
im not overly convinced on using cooked roms, the working / non working list isnt what i look for in a phone, and i will continue to use the phone as designed (3g / wifi / bright screen / etc)
now i know that it uses li-on batteries which don't suffer from battery memory, so im feeling that this is more of a system / software issue.
the phone is about a year old.
thoughts?
Click to expand...
Click to collapse
you should flash another firmware, someone that's more stable.I had the same issue with my phone, and now it works fine
Sent from my GT-S5660 using xda premium

[HELP] Battery not getting full charge

My Galaxy 3 battery is behaving quite strange for a month. Problem is my battery never gets above 4181mv which is why I never gets full charge of 4200mv and then it goes to 0 at 3650mV which if we do some maths should be 45%. The problem is due to this i am not able to get full backup, hence no proper calibration. My battery now lasts for hour. Sometimes there is sudden drop from 60% to 0 at 3705mV. I need to know if there is any solution to this before forcing me to buy a new battery. My current battery is 9 months old which came with phone.
Sent from my GT-I5800 using xda premium

friend863 said:
My Galaxy 3 battery is behaving quite strange for a month. Problem is my battery never gets above 4181mv which is why I never gets full charge of 4200mv and then it goes to 0 at 3650mV which if we do some maths should be 45%. The problem is due to this i am not able to get full backup, hence no proper calibration. My battery now lasts for hour. Sometimes there is sudden drop from 60% to 0 at 3705mV. I need to know if there is any solution to this before forcing me to buy a new battery. My current battery is 9 months old which came with phone.
Sent from my GT-I5800 using xda premium
Click to expand...
Click to collapse
try changing the charger if that doesn't work am afraid you just have to change the battery.

friend863 said:
My Galaxy 3 battery is behaving quite strange for a month. Problem is my battery never gets above 4181mv which is why I never gets full charge of 4200mv and then it goes to 0 at 3650mV which if we do some maths should be 45%. The problem is due to this i am not able to get full backup, hence no proper calibration. My battery now lasts for hour. Sometimes there is sudden drop from 60% to 0 at 3705mV. I need to know if there is any solution to this before forcing me to buy a new battery. My current battery is 9 months old which came with phone.
Sent from my GT-I5800 using xda premium
Click to expand...
Click to collapse
you need to go to recovery and wipe battarey stats

Well..Did I told that I tried various calibration method? Well sorry If I didn't. I even tried charging while power off.

battery
hello sorry to tell you you need a new battery you have a short in between your cells and or a failed cell i know this because i personally have a cadex battery tester and what you are describing i get complaints about all the time and when you test it it will tell you you have a bad cell in 1,2,3 depending on battery try batteries plus i got a my g2x battery there cause stock was 1500 thats crap for a smartphone i got same size with 1800 for 50 bucks and its so much better

vulf1917 said:
you need to go to recovery and wipe battarey stats
Click to expand...
Click to collapse
If you can't do that then straight up, get a new battery. Because this should fix it.

Wiping battery stats?

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.
Click to expand...
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+
Click to expand...
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

Battery issue's ....!!!!!!

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

Battery life problems.

Hello, I'm currently running cm 9, however the battery life is just awful
When the phone is on sleep it loses like 1 percent every 5-10 minutes
I am using an extended battery as well, please tell me what to do I was on GB before and the battery was outstanding, I could go on one charge the whole day with heavy usage, now i dont think I can make it through the day with light usage on this
thank you
EDIT: This could be a sleep problem, because when the device is on, the battery is normal

If you flashed the Feb 27 cm9 you should flash proton kernel so you can watch videos. Battery life isn't as good as gb no matter what you do. Also give it some time to settle in. It takes more than a couple hours.

alright thank you... I just flashed the newest version of cm9 a few hours ago, I was flashing a bunch of roms and this one seemed the best... do you know how to force a device into deep sleep cause that seems to be the problem i believe

OK I was just on 20 percent, then i rebooted my phone, and now im on 2 percent... im seriously considering going back to gb

Sounds more like a battery thing? With CM9.? + Proton I'm getting at least a day* with light use. Maybe a bad app or combo of apps? What does BBS say is eating the charge?
* - I say at least a day because I can't not use it for that long.
Sent from my SGH-T959V using xda app-developers app

Stuck on hold said:
Sounds more like a battery thing? With CM9.? + Proton I'm getting at least a day* with light use. Maybe a bad app or combo of apps? What does BBS say is eating the charge?
* - I say at least a day because I can't not use it for that long.
Sent from my SGH-T959V using xda app-developers app
Click to expand...
Click to collapse
just the screen and the android system... very interesting thing though is happening
I'm running a bunch of quadrants to get the battery down to 0, and the battery is all the way down to 1%, however it's been on 1% for like 6 quadrant tests... maybe its just a problem with the indicator, however another indicator also says it's at 1%... very interesting

If you are on CM9, I suggest you flash Hefe or Proton.
I use Hefe because according to the posts being made it puts your phone into deep sleep, which means longer battery life.

tstrat said:
OK I was just on 20 percent, then i rebooted my phone, and now im on 2 percent... im seriously considering going back to gb
Click to expand...
Click to collapse
Definitely a battery problem. This happens to me on one of my batteries but not on another. Time to buy a new one. I haven't tested it fully but it does appear to be just a display issue. Sometimes the bad battery will make the phone display 1% but it will still act as if it had way more than 1% charge left. I haven't done any testing on that regard but that's what it appears to do.

FBis251 said:
Definitely a battery problem. This happens to me on one of my batteries but not on another. Time to buy a new one. I haven't tested it fully but it does appear to be just a display issue. Sometimes the bad battery will make the phone display 1% but it will still act as if it had way more than 1% charge left. I haven't done any testing on that regard but that's what it appears to do.
Click to expand...
Click to collapse
I don't believe it to be a battery problem, because I've been on GB with absolutely no problems and exceptional battery... I just upgraded to ics not long ago, and the battery life instantly screwed up

Have you set the cpu governor to anything silly like performance?
Have you let it charge up fully at least once?
Search xda for "better battery stats" app, use it to see if you're getting deep sleep.

Flash hefe over release 8 and youll have a little better battery. Proton doesnt deep sleep
Sent from my SGH-T959V using Tapatalk 2

Proton DOES deep sleep. That was one of its major features.
Certain scheduler/governor combinations work better on different kernels, though. If the specific one you like most sleeps better on Hefe, great. If the one you like does best on Proton, great. Just be aware that most issues are either physical or user-inflicted...
In this case, your battery is almost certainly dying. The variance in power over a reboot is a definite tell that your battery is probably swollen. If you can spin it on a table, the cells are starting to die. This does not mean you can't keep using it, but it does mean that your battery life will be irregular. It also means that you'll have significantly "higher" battery levels if you reboot the phone with external power connected, but the battery will discharge very quickly if it hasn't actually reached whatever level it believes it should be at.