Database Develop

Rapid Battery Drain

Alright, I understand that the G1 is not exactly known for its "amazing" battery life (lots of sarcasm intended), but recently... mainly after I rooted my phone and started installing roms. The battery has been draining in a matter of a few hours with limited use and the rest on standby mode. The CPU is not being overclocked, and I've turned EVERYTHING off, including 3G, WiFi, Location, GPS, I've purchased a battery off ebay that claimed to be a 1700 mah battery to see if it helped, and it actually got worse. And I've tried recalibrating the battery.. (draining it to 0% until it turns off), and then I would keep it on the charger while it's turned off.... is there anything I can do to change this?
P.S. I haven't installed any apps recently that could be draining the battery like this, and i disable auto-sync as well. I've wiped the phone just in case tho
And if not, can anybody recommend a battery for this phone except for the extremely bulky ones that requires a new battery casing for the phone? And where's the best place to buy one?

What rom are you using?
Hero and Eclair roms have massive battery drain.

nephron said:
What rom are you using?
Hero and Eclair roms have massive battery drain.
Click to expand...
Click to collapse
Right now, I'm using Sense Hero 1.4 and it's amazing. But the drain was also on Cyanogen's 4.2.7.1, though it wasn't as bad, it was close

have you deleted the battery bin file on a fully charged battery, used till it was drained and then fully charged with it cut off?
I did this and it seemed to help, though I admit my battery has been draining really fast lately. I usually will charge it at work and at home.

s15274n said:
have you deleted the battery bin file on a fully charged battery, used till it was drained and then fully charged with it cut off?
I did this and it seemed to help, though I admit my battery has been draining really fast lately. I usually will charge it at work and at home.
Click to expand...
Click to collapse
No I have not tried that. I see an option in Amon Ra's recovery 1.5.2 that says reset battery stats... not sure what that does... but where is this bin file you mentioned?

[Q] battery percentage not accurate

Hi Guys!!
i've done what this link told
http://forum.xda-developers.com/showpost.php?p=10092321&postcount=11053
but everytime i reach 100% and unplug the charger, my battery percentage immediately shows 97%, be it charging with the phone off or on....
i already did wipe my battery stats in recovery a few times, the first time only it showed that the stats were wiped, after that every time i wipe the stats, it immediately goes back to the previous menu, without stating whether the wipe was carried out or not....
can someone help this noob out here.... thnx

FYI, i just installed darky's rom v8.0 with Voodoo's kernel 5.2(lagfix disabled)
when i was on stock, my 100% could last me about nearly half an hour

I have this problem too. (I am on Darky 9.02 and have seen it in Darky 8.0 too). BUT if your battery life is satisfactory then don't worry about it.

hows the performance on v9.02 bro?

mab71 said:
hows the performance on v9.02 bro?
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Click to collapse
Here is another post on calibration (from Darky himself)
http://darky.ficeto.com/community/index.php?threads/guide-how-to-calibrate-your-battery.321/

mab71 said:
hows the performance on v9.02 bro?
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Click to collapse
9.02 is good but then so was 8.00. I personally think 8.00 was faster but its only been a few days and am still experimenting. I may remove the lag fix and still need to see if my battery is draining faster.

Also look at this post: Has some interesting but unverified info about the drop from 100% to 97/98% after unplugging
http://darky.ficeto.com/community/i...-how-to-calibrate-your-battery.321/#post-3839

Do you really want it on 100%? Easy, once it says charged, leave it on the charger for another hour and when you unplugged it should stay 100 for a while
Sent from my GT-I9000 using XDA App

Problem posted hundreds of times along with solutions like search the Rom makers forum and read the posts re this problem for starters .
Simple solution save time and effort is to ignore it .
jje

thanx all for the advices.... tried the QueenAmy method, result is:
heavily used phone: battery 'died' at 2%(???)
charged phone until 100%(phone off)
switched phone on while still charging: 97% (didnt have to unplug charger)
waited...then it went from 97% straight to 100%.(funny)
then went into recovery to wipe bat stats.
rebooted and unplugged charger, battery still at 97%....
now trying to charge a bit more longer to see if can change anything... (fingers crossed)

icejagans said:
Do you really want it on 100%? Easy, once it says charged, leave it on the charger for another hour and when you unplugged it should stay 100 for a while
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
not working bro...
left it on for about an hour, unplugged, straightaway the percentage drops to 98...

It's just a change in 2.2.1.
In 2.1/2.2, they 'stretched' out the battery life a bit to mark it up to 100%, in 2.2.1 they decided to just show it at the actual value. The reason your battery won't charge to 100% is to prolong the battery life, because if the charger always charged to 100% it would have a high chance of overcharging and damaging your battery over time.
There's no real change in battery life.

I reverted back to 2.2 and still have the problem. Maybe i shouldve flashed on 100% battery... Is it possible to solve if i do another fresh flash with 100% battery?
Sent from my GT-I9000 using XDA App

nwsk said:
It's just a change in 2.2.1.
In 2.1/2.2, they 'stretched' out the battery life a bit to mark it up to 100%, in 2.2.1 they decided to just show it at the actual value. The reason your battery won't charge to 100% is to prolong the battery life, because if the charger always charged to 100% it would have a high chance of overcharging and damaging your battery over time.
There's no real change in battery life.
Click to expand...
Click to collapse
Just to clarify this, you actually cant over charge the battery on the SGS nor Li-Ion for that matter, what happens here is that the battery goes on trickle charge pre 2.2.1 and battery degrades faster if its kept at 100%, 40% is optimal for storage now with the recent changes the phone will pretend it has charged upto 100% but will stop anywhere from 99~97% yes there is no loss in battery life but dont consider 97% as the new 100%, theres already a 3% loss in this to begin with.

EarlZ said:
Just to clarify this, you actually cant over charge the battery on the SGS nor Li-Ion for that matter, what happens here is that the battery goes on trickle charge pre 2.2.1 and battery degrades faster if its kept at 100%, 40% is optimal for storage now with the recent changes the phone will pretend it has charged upto 100% but will stop anywhere from 99~97% yes there is no loss in battery life but dont consider 97% as the new 100%, theres already a 3% loss in this to begin with.
Click to expand...
Click to collapse
thanks Earl.... but is there a solution for my prob here, or do i just have to ignore it?

thanks Earl.... but is there a solution for my prob here, or do i just have to ignore it?
Is not a problem its the current design .
all the other millions of posts on the subject no way found to increase the figure .
jje

thnx mate.... i guess i'll just have to chill about this....n stop wasting my time right... ;-)

[Q] Battery Calibration - reboot?

I recently installed Serendipity and made sure the battery was at 100% while doing so (and deleted the battery file). I'm waiting for the battery to drain before I plug it in. Am i supposed to let it charge all the way again? Also, is it safe to reboot the phone while it is draining the first time? I want to install something using clockwork.
I'm being careful about this because cognition would report 14% battery life after 33 minutes of display usage and display eating up 96% of my battery....

killsto said:
I recently installed Serendipity and made sure the battery was at 100% while doing so (and deleted the battery file). I'm waiting for the battery to drain before I plug it in. Am i supposed to let it charge all the way again? Also, is it safe to reboot the phone while it is draining the first time? I want to install something using clockwork.
I'm being careful about this because cognition would report 14% battery life after 33 minutes of display usage and display eating up 96% of my battery....
Click to expand...
Click to collapse
There's a complete thread on this, I suggest you look it up.
After you reset your battery stats, it is suggested to do a few full battery circle (use til dead, full charge, rince and repeat). You should be fine after 2-3 circles.
Note tho that it will not improve your battery life. All it does is a attempt to tell your phone what % your battery life is exactly.
For your fast drain, I don't think it has anything to do with your battery calibration or your ROM. It's most likely a app (or a few) that are draining alot of juice or that are running w/o realy being needed. (Check your running services.. make sure you know which one to stop and not to***)
Also using a app/widget like advanced task killer can help your battery life as it will stop every app running with a simple touch. I suggest doing it anything you're not using your phone.
One last thing, display eating 96% of your battery is normal.. it's not telling you it's using 96% of your battery. It's telling you that during the time your phone as been unplugged, your display use was your main action.. probably cause you didn't make many calls or anything else.. Display is just about everything you do with your phone so it will always have some high numbers like that.

BWolf56 said:
There's a complete thread on this, I suggest you look it up.
After you reset your battery stats, it is suggested to do a few full battery circle (use til dead, full charge, rince and repeat). You should be fine after 2-3 circles.
Note tho that it will not improve your battery life. All it does is a attempt to tell your phone what % your battery life is exactly.
For your fast drain, I don't think it has anything to do with your battery calibration or your ROM. It's most likely a app (or a few) that are draining alot of juice or that are running w/o realy being needed. (Check your running services.. make sure you know which one to stop and not to***)
Also using a app/widget like advanced task killer can help your battery life as it will stop every app running with a simple touch. I suggest doing it anything you're not using your phone.
One last thing, display eating 96% of your battery is normal.. it's not telling you it's using 96% of your battery. It's telling you that during the time your phone as been unplugged, your display use was your main action.. probably cause you didn't make many calls or anything else.. Display is just about everything you do with your phone so it will always have some high numbers like that.
Click to expand...
Click to collapse
Yeah, I've seen the thread before but forgot about it. Thanks for reminding me. And my point about the display was that it was on for such a short amount of time, yet still killing my battery.
I am now down to 30% or so after 3 hours or more of display time after calibration & rom switch- and I was streaming music through WiFi and using Bluetooth headphones. So it it seems like it made a huge difference =D
Thanks

[Q] Batter life

First off I can't spell battery............
I have an ATT Captivate that I have fixed by installing FF3 and Kernel 2.6.32.9 as a package from this site. My battery life isn't noticably worse than it was when it was the stock 2.2 but it still sucks. After 10 or 12 hours of very light use its down aound 15%. The battery use says it's hands down the display thats using the juice.
I was hoping (maybe wrongly so) that having the additional access to the phone I could somehow improve my battery life. I've tried the bump charge, recalibrate, CWR erase battery stats, etc. I also have 2 batteries for it (that probably tells you something right there) and both batteries behave the same.
Does anyone have any suggestions on this? Is there a launcher that I can use that's battey friendly? A different ROM?
It's a shame to have this phone to the state it is with a FF3 rom and faster than it was and not be able to use it all I want.
TIA, Jeff

Some things to help get the best battery life are:
Place screen brightness at lowest level both on web browser and on normal screen.
Switch to 2G when not needed for downloading/uploading data.
Turn off power saving mode under settings/display.
Use as few widgets as possible.
Manually retrieve emails rather than having them sent to you every 30 minutes or less.
In cwm there is a battery settings menu (can't remember what it is called) but you should enable that also.
These are some of the better ways to get better battery life out of your phone.

[email protected] said:
First off I can't spell battery............
I have an ATT Captivate that I have fixed by installing FF3 and Kernel 2.6.32.9 as a package from this site. My battery life isn't noticably worse than it was when it was the stock 2.2 but it still sucks. After 10 or 12 hours of very light use its down aound 15%. The battery use says it's hands down the display thats using the juice.
I was hoping (maybe wrongly so) that having the additional access to the phone I could somehow improve my battery life. I've tried the bump charge, recalibrate, CWR erase battery stats, etc. I also have 2 batteries for it (that probably tells you something right there) and both batteries behave the same.
Does anyone have any suggestions on this? Is there a launcher that I can use that's battey friendly? A different ROM?
It's a shame to have this phone to the state it is with a FF3 rom and faster than it was and not be able to use it all I want.
TIA, Jeff
Click to expand...
Click to collapse
In 10-12 hours you only have 15% left on your phone? How much time is used for display? My phone can usually last a good 15-20 hrs with light to moderate use. As we all know display is the number one use for battery consumption. I've noticed I can go about 2 and half hours give or take on display before my battery gets kinda low.
As the previous poster has mentioned, screen brightness and data usually are the culprits for bad battery life. Try leaving your screen brightness on a low setting, and turning auto-brightness OFF. Disabling background data in "accounts and sync" setting is also a very good way to help with battery life. Also, making sure your GPS is OFF is another good way to save some juice.

JayFReaZy said:
How much time is used for display?
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Click to collapse
Is there an application that will tell me this other than the about->battery ? Currently my info is limited to percentage of total battery useage and is showing that display is 96%.

[email protected] said:
Is there an application that will tell me this other than the about->battery ? Currently my info is limited to percentage of total battery useage and is showing that display is 96%.
Click to expand...
Click to collapse
tap that it will take you to a more detailed screen with the time used...

Flashed ROM (FF3) while batt low?
I'm pretty sure the batt was not 100% when I flashed to FF3 and I did not clear everything out before either. If this is a potential problem with batt life can I fix this short of reflashing on a full batt?
Is going into CWR and restoring from a backup going to do the same thing as reflashing FF3 from the batteries perspective if I clear everything first?
TIA, Jeff

[Q] Battery Calibration

Hi fellow O2x users -
Has anyone else had a go calibrating their O2x battery? Either using marosiges' battery calibration app, or manually removing the batterystats.bin file?
I've done the following calibration cycle:
Charged to full via the wall charger, mV figure was ~4188 mV, which I've read is normal, then removed the batterystats.bin file;
Used the phone till it powered off on its own, mV figure was ~3450 mV, which is higher than normal (~3200)? Or is this normal for the O2x?
Recharged the phone uninterruped back to 100%, mV figure was ~4180 mV, so nothing wrong there again either;
Normal usage/charging of the phone over 4 days, and battery uptime is worse than before calibration. (Uptime was worst immediatly after calibration, and gradually improved, but it never got better than before calibration).
Thinking that someting had gone wrong, I repeated the calibration and observed the same mV figures as above. So far, after another 3 days, battery uptime has not improved beyond the previous calibration, and definitely not to the level of what it was before calibration.
The only things I can think of are:
The O2x requires a higher minimum level of charge to power the dual core chipset and CPUs/GPU;
The O2x has a custom batterystats.bin file to begin with, and allowing the android OS to recreate the file doesn't work.
Does anyone have any insights? I'm running stock Australia 10b ROM, rooted, with some of the bloatware packages disabled. I'm not affected by reboots/BSOD's or lock-ups.
(Marosiges' original thread, [APP] Battery Calibration - EASIEST WAY! - Version 1.2, is in the "Android Development and Hacking" section, which I unfortunately can't post to yet.)
Thanks, this forum rocks!

EVERY android phone/device I have ever owned has this problem. I just don't see what the battery stats file is used for if we just have to keep deleting it. None of my other phones have had this stupid file and they could ALL read the battery percentage just fine and as a side note also lasted longer I had a thought of making the file read only so the phone could not write to it and see if that makes the phone read the battery from the actual battery without miss informing us using the batterstats.bin file ?
Sent from my LG-P990 using Tapatalk

stevvie said:
...they could ALL read the battery percentage just fine and as a side note also lasted longer...
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Click to collapse
That's what I was thinking/wonderng - Li-Ion battery packs have built in circuitry that handles its state, without the need of a software layer.
Although it seems that other android phones are able to discharge to a lower voltage (to ~3200 mV) - i.e. they have more usable capacity? I'm wondering why the O2x goes off at ~3450 mV...and if that's normal.

My best advice is to avoid using stock.
It is too irregular.
If the 3G signal is weak i get constant 3G and GSM hopping which drained the battery in 2h.
But if it was good it lasted way longer.
not sure about the shutdown voltage, i'll give it a shot later
hmm i think mine shuts at 3450 as well maybe even higher, idk
but mine lasts for a day with medium usage.

i tried to look into this earlier and my battery drained to 3350ish before it shut down on me.
i guess that's its limit. i'm running on stock:
BIN_LGP990AT-00-V10b-ESA-XXX-APR-21-2011+0

I'm currently calbrating my battery as I flashed a new ROM, phone was now just shutting off at 3369 mV!
Hopefully battery performance gets better soon!

Deleting batterystats.bin did get me better battery life. But after 6 days I had a huge drain.
Rebooted phone, removed .bin again and it's going ok again....

I'm not particularly wanting to calibrate my battery too frequently - full discharge cycles are bad for the battery.
At 30% charge this morning, my voltage was at 3700 mV. If you use 100 mV as a rough gauge of 10% charge, that would give me ~3400 mV at a 0% charge level.
I guess it's just normal for the O2x battery to be flat at ~3400 mV.
If there are any other O2x users out there who have different voltage figures do make a post. Thanks!