Database Info

Tips to GREAT Battery Life!

Here are the settings I'm running on CM7 to get amazingly bananas battery life (with the display being on for about 5 hours!)..
1. Conservative governor: 245mhz - 1017mhz in CM7 settings
2. Install the 'BatteryCalibration' app from the market. This app caused the single biggest improvement for me after having flashed so many roms and never calibrating the battery. If you've calibrated it before though, I don't think it'll be very useful for you.
3. Install 'NoBars' from the market to automatically turn on airplane mode when you have no service. (This might be useless to some of you if you always have a signal; Very useful in NYC subway though)
4. Use a 2G toggle widget to have the phone only use the Edge connection when you only need it to receive calls/ texts and don't need the high speeds. I use the toggle widget in the CM7 notification bar. HUGE battery saver.
Give these a shot and let us know how they work for you

I've reached the end of my day and here are my final stats..
Mmy display has been on on over 5 hours now and I have 5% of the battery left. Seems more than good enough for me. Hopefully it will be for some of you too
Edit - Updated with more recent stats

Aspeds2989 said:
As you can see by my display being on over 3 hours, I used my phone a heck of a lot today and still have over a third of my battery left. Seems more than good enough for me. Hopefully it will be for some of you too
Click to expand...
Click to collapse
Question: It's cool that your display was on for 3 hours, but what did you do as far as app usage??
If you did use your phone "a heck of a lot" wouldn't some apps like "internet" "maps" or something show up on the battery use %'s???
For example, currently, other than phone idle, cell standby, voice calls and android, there's also internet, mail, maps, and other apps that I used today alot.

Good observation. I have no idea how android chooses which apps to show on there, but I think it depends on the ROM? I remember on Iced Glacier cell standby would barely use 5% of the battery and on CM7 it uses >40% consistently. Idk.
Maybe what those apps used up here was nothing compared to the display, wifi and phone idle time.. Just a guess.. But I did use the browser and xda app and listened to music via the Rdio app running in the background several times throughout the day, and sent multiple texts and have had my wifi on for about 5 hours now. I can't really find a menu that would show these statistics except in the Spare Parts app, and here you go..

I got 17 hours just yesterday with 9% left with moderate to heavy use (texting, web browsing and ps1 emulation).
I didn't do anything besides use faux's kernel with the smartass govenor. I have the max speed overclocked to 1.8 as well...

Nice. I just got over flashing new kernels for a while since the stock CM7 one has everything functioning perfectly and new kernels would improve on something but mess up something else in my experience.

I can't seem to find a 2g toggle widget that works with Royal Glacier. (one touch, I've found a few that take you to settings) When I was running Royal Ginger I would always use the one that came in the notification bar.

Wifi status is also a good app to remind the forgetful to turn off wifi when they leave the Area.

Aspeds2989 said:
I've reached the end of my day and here are my final stats..
Mmy display has been on on over 5 hours now and I have 5% of the battery left. Seems more than good enough for me. Hopefully it will be for some of you too
Edit - Updated with more recent stats
Click to expand...
Click to collapse
This is GREAT battery life... i wonder what word i'd use to describe mine.
i Pulled my Phone off the Charger this morning @ 7:20pm EST. Now it is 3:13 EST. and i've got ~50% left. So thats what like. 7 hours

neidlinger tap that 'screen on' tab and lets see how long your screen was actually on for?
Either way congrats, and it's good to see ppl are over the battery issues.

Aspeds2989 said:
neidlinger tap that 'screen on' tab and lets see how long your screen was actually on for?
Either way congrats, and it's good to see ppl are over the battery issues.
Click to expand...
Click to collapse
since my last boot. 8:10AM when i loaded the new CM7. 1h 1m 59s.

Unless I'm missing something, the 'BatteryCalibration' app won't increase your battery life. It will just help to get a more accurate reading of your battery level.
I've played around with different roms and kernels. And yes, they do have a small effect on battery life, but not all that much.
Here's my tip for battery life. Get on ebay and buy one the of the cheap packages from Hong Kong with 3 batteries and a standalone charger. Like this:
http://cgi.ebay.com/3x-New-1500mAh-Battery-Charger-HTC-Mytouch-4G-Merge-/290556738794?pt=PDA_Accessories&hash=item43a687fcea
I bought a similar package a few months ago and now I never have battery problems. Nor do I have to take a chance on wearing out my micro-usb jack like I've seen happen on a lot of other phones.

Maybe. All I know is my battery increased dramatically after running that app once.
I measure battery life by how many hours I am able to keep my display on before it dies rather than how long after it comes off the charger (like nedilinger does). My battery used to die after about 3 hours of the display being on. Now it consistently lasts 5 hours.
Anyway, I was just trying to let others know what I did to get a really good battery life on my phone thinking it might be helpful. Apparently that's not appreciated. Thanks tho.

sundayhustler said:
Unless I'm missing something, the 'BatteryCalibration' app won't increase your battery life. It will just help to get a more accurate reading of your battery level.
I've played around with different roms and kernels. And yes, they do have a small effect on battery life, but not all that much.
Here's my tip for battery life. Get on ebay and buy one the of the cheap packages from Hong Kong with 3 batteries and a standalone charger. Like this:
http://cgi.ebay.com/3x-New-1500mAh-...738794?pt=PDA_Accessories&hash=item43a687fcea
I bought a similar package a few months ago and now I never have battery problems. Nor do I have to take a chance on wearing out my micro-usb jack like I've seen happen on a lot of other phones.
Click to expand...
Click to collapse
How long does 1 of those batteries last?
Sent from my HTC Glacier using XDA App

simple way to get awesome battery life without any extra steps is to install RoyalGlacier 1.6, that's all. A couple days ago I ran my phone for one and a half days before charging it again, and it still had 14% battery left. RG is pretty much a polished version of CM7, runs blazing fast and smooth.

erickdj said:
simple way to get awesome battery life without any extra steps is to install RoyalGlacier 1.6, that's all. A couple days ago I ran my phone for one and a half days before charging it again, and it still had 14% battery left. RG is pretty much a polished version of CM7, runs blazing fast and smooth.
Click to expand...
Click to collapse
does the royal ginger gets the same battery result?

iambryantho said:
does the royal ginger gets the same battery result?
Click to expand...
Click to collapse
Better than what's reported under CM7. The battery life I posted above was on RG.

you say you don't sacrifice 4g but you admit you have a 2g/edge widget?
To me "not sacrificing 4g" means not ever turning it off, maybe i'm mistaken
I had battery issues, I'd have to charge it mid day else it would die. Juicedefender helped a bit (claimed to do 1.7x battery life) but I uninstalled it, rooted the phone, and uninstalled a bunch of stock apps
For some reason now my battery lasts a very very long time, don't know how or why that is. I also admit I don't use it as heavily as some people, but my habits have not changed and I did have to charge it mid day (like i said) even with little usage

rosebud1 said:
How long does 1 of those batteries last?
Click to expand...
Click to collapse
Obviously, it's hard to say without describing how I use my phone, but I get probably 10-15 hours of medium-high usage. I probably get about 4-5 hours of talk time. I'd say the Chinese ebay batteries probably last 80-90% as long as the OEM battery. Quite decent considering the price.

My earlier thoughts about the BatteryCalibration app could be wrong. I don't really know all the details about how Android battery calibration works. I just assumed that it simply learns about all the bad spots in your battery so that your phone doesn't instantly jump from 80% to 30%. I also assumed that the phone would die when the battery had no power left, as opposed to when it says 0%, but maybe that's not the case. Regardless, if it helps you, more power to you and I appreciate you sharing the app. I didn't mean to come off as an unappreciative ****. If I did, sorry bout that.

battery drain

dont know if it is helpfull or not but one thing i have found is the autosync drains the battery real fast,also setting the screen to full brightness sucks alot of juice. i have been unplugged for an hour reading the forums and still at 92%,that is good as far as i am concerned,if autosync and brightness were set on ut would be at 75% by now
sent from a screamin' bamfed out tbolt

Pretty obvious? But the screen brightness does make a substantial impact on battery life.
VirusRom and Lean Kernel

This is pretty well known information.

Every little bit of info helps. Check all auto updating apps as well. they can use lots of Battery power.

What I want to know is why after a reboot on any ROM it seems the battery drops approx. 8-10%? It doesn't take that much battery to reboot a phone. This has been the frustrating thing for me thus far.

Yeah, one of the biggest battery savers for me was turning Facebook from 1 hour to 1 day (auto update). I can't believe how much battery that uses. Set the screen to manual brightness with the Android Power Widget and bam - you've got a phone that can last awhile.

I am using the CM7 RC0.4 and the battery is awesome. Here the screenshot.

Mustang302LX said:
What I want to know is why after a reboot on any ROM it seems the battery drops approx. 8-10%? It doesn't take that much battery to reboot a phone. This has been the frustrating thing for me thus far.
Click to expand...
Click to collapse
Yes. Yes it does.
Sent from my ThunderBolt using XDA Premium App

Yup, It does drop 10% of the battery usage every reboot.
Mustang302LX said:
What I want to know is why after a reboot on any ROM it seems the battery drops approx. 8-10%? It doesn't take that much battery to reboot a phone. This has been the frustrating thing for me thus far.
Click to expand...
Click to collapse

chrootz said:
I am using the CM7 RC0.4 and the battery is awesome. Here the screenshot.
Click to expand...
Click to collapse
Can you tell what type of Rom and Radio you use on the CM7 ?
Thanks

chrootz said:
I am using the CM7 RC0.4 and the battery is awesome. Here the screenshot.
Click to expand...
Click to collapse
No offense meant but you obviously haven't used your phone for anything the entire time.

applejacks24 said:
Pretty obvious? But the screen brightness does make a substantial impact on battery life.
VirusRom and Lean Kernel
Click to expand...
Click to collapse
Good info for those new to large screens. The screen is by far the largest battery hog on these phones for me. I find the screen plenty bright at about 30%. Except in the sun of course

satseaker said:
also setting the screen to full brightness sucks alot of juice.
Click to expand...
Click to collapse
in other news, water is wet and the sky is generally blue.

I wish I could get some nice battery life! I already have my phone set at 30% brightness, my auto updates are set at like 4 hours. I fully charged my phone last night and unplugged it when I went to bed. 8 hours later it was at 45% battery remaining. Doesn't seem that good for a phone sitting with display off and doing nothing overnight.

Battery on Bamf 1.8 stripped

So, I just flashed this ROM yesterday.
Full charge over night took phone off charger around 7ish this morning. Did a quick 30 minute run/walk workout w/the Cardio Trainer recording (tracking w/GPS), all while listening to the FM radio. I have had two phone calls totaling about about 7.5 minutes. Maybe 35 text messages in and out. I'm in a strong 4G area, I do not have my phone set to automatically get email. I just turned off the facebook hourly update, just noticed I hadn't done that yet ..... my phone is already barking at me that I need to plug it in.
With the exception of my run and listening to the radio this morning I really haven't done much .... I downloaded a couple of apps and tweaked them, but seriously 3.5 hours of battery before it's telling me less than 10%.
Any suggestions?
I did not clear the battery stats, in my past experiences that really didn't do anything to help (but that was w/the Eris).
I'd love to have GREAT battery life that everybody talks about. Anybody using this ROM have stupendous battery time? Not sure what has sucked the life out of this.
Thanks

I'd say it's the GPS that killed you.

same thing for me on bamf gb 2.1. i was at 20% after 5 hours of use

migueltherocker said:
I'd say it's the GPS that killed you.
Click to expand...
Click to collapse
IDK about that, I've gone out for the same 30 minute walk/run w/the battery on yellow (on stock rooted) and the radio going and it hasn't killed it. I think maybe it's part of it, but IDK it's all of it.
I've put the phone on strict 3G, going to totally KILL it tonite and turn it off while charging.

Have you tried recalibrating your battery since installing Bamf 1.8 stripped? Maybe it's not a problem with the ROM, but with the battery calibration.
Sometime at night shutdown your phone and then hold volume down and power to boot up HTC's nice bright white bootloader. Leave it alone until it dies (the phone cannot die properly while running Android, since Android will shutdown the phone when it thinks the battery is low, rather than when the battery IS ACTUALLY low). Plug in the power cord after it dies, but leave the phone turned off. It should take a few minutes for the orange light to turn on because it's so dead. Leave it alone until the green light is showing in the morning. Then start it up. This will get the proper 0% and 100% points for your battery stats. Also check what apps are killing your battery. I was having a problem with Google Maps for a while until I cleared data on it.

I have a similar problem. I will take it off the charger and after a few minutes it will be down around 97%. No big deal. I will set it down and walk away for at most 15-20 minutes and come back and it will be on like 80%.
After that though the battery life stabilizes and I get 12+ hours with moderate use

Running AOSP CM7. I have had my phone off charge since sometime around 6 am ET this morning and at 50% now at 11 pm. This has kept me kept me from getting an extended battery. You should try it.
Sent from my ThunderBolt using XDA Premium App

lu270bro said:
Running AOSP CM7. I have had my phone off charge since sometime around 6 am ET this morning and at 50% now at 11 pm. This has kept me kept me from getting an extended battery. You should try it.
Sent from my ThunderBolt using XDA Premium App
Click to expand...
Click to collapse
How is the stability on this? Is it good enough for a daily ROM? (not that it's not "good", I know their work rocks) - I don't know if I want a "testing" phase ROM. Hope that makes sense?

chimpsnest said:
How is the stability on this? Is it good enough for a daily ROM? (not that it's not "good", I know their work rocks) - I don't know if I want a "testing" phase ROM. Hope that makes sense?
Click to expand...
Click to collapse
3g to 4g handoff is the main complaint I hear, but I'm not in 4g area. Have driven through a 4g area and it seemed fine to me. Put it this way, this has been my daily driver for over a month now. And GPS gets near instant lock btw. I don't want to hijack the thread so I will just say that I NEED my phone to work and if too many bugs were present I wouldn't be running it.
Sent from my ThunderBolt using XDA Premium App

lu270bro said:
Running AOSP CM7. I have had my phone off charge since sometime around 6 am ET this morning and at 50% now at 11 pm. This has kept me kept me from getting an extended battery. You should try it.
Sent from my ThunderBolt using XDA Premium App
Click to expand...
Click to collapse
Your display is only at 5% of total usage... You hardly used your phone. Of course its going to last for 16 hours when it just sits there

athorax said:
Your display is only at 5% of total usage... You hardly used your phone. Of course its going to last for 16 hours when it just sits there
Click to expand...
Click to collapse
I get awesome battery life on BAMF Remix 1.8, 20-24 hrs with normal to excessive usage. I get about half that with BAMF GingerRemix. You can see I actually use my phone, lol.

johnkc1975 said:
I get awesome battery life on BAMF Remix 1.8, 20-24 hrs with normal to excessive usage. I get about half that with BAMF GingerRemix. You can see I actually use my phone, lol.
Click to expand...
Click to collapse
tell me your secrets
i just flashed 1.8 remix i get like 9-10hrs of battery with little to medium use

as ive said i must of lucked out with a solid battery as ive never had the horrid battery life most claim on the net. even with 4g on all the time i get well over 10-12hrs with medium/heavy usage.
a suggestion for a solid kernel is the 3.3.7 lean kernel, don't overclock too high either. i think that's why alot of people have the crap battery life and random reboots.
if you live in an area that doesn't get good 4g coverage id switch to 3g only mode if i were you.

lu270bro said:
3g to 4g handoff is the main complaint I hear, but I'm not in 4g area. Have driven through a 4g area and it seemed fine to me. Put it this way, this has been my daily driver for over a month now. And GPS gets near instant lock btw. I don't want to hijack the thread so I will just say that I NEED my phone to work and if too many bugs were present I wouldn't be running it.
Sent from my ThunderBolt using XDA Premium App
Click to expand...
Click to collapse
appreciate the info, don't think you're hijacking at all
I've totally turned off my 4G (even though my home area is FULL 4G) and my battery life seems to have improved. I still have to do the recalibration thing, I keep forgetting.

How is the lean kernel with 1.8 stripped? Any compatibility issues?

kpfury said:
How is the lean kernel with 1.8 stripped? Any compatibility issues?
Click to expand...
Click to collapse
ditto I would like to know this as well.
- is this different than what is included in the bamf toolkit?

im using bamf 1.6 and i get 20-24 hours batt life
brightness always on 25%, unless outside then i bump it up and then turn it down when im done. lower than 25% at night when the lights are out and im just watching tv
background data and auto sync both off
moblie data off
use wifi whenever possible
switch to 3g only when youre not in a 4g area and you need to use the internet

chimpsnest said:
With the exception of my run and listening to the radio this morning I really haven't done much .... I downloaded a couple of apps and tweaked them, but seriously 3.5 hours of battery before it's telling me less than 10%.
Any suggestions?
Click to expand...
Click to collapse
I get incredible good battery life with the Das BAMF 1.8.6 NTE so I would expect the same out of Stripped. I would consider another kernel, I am very happy with utkanos http://forum.xda-developers.com/showthread.php?t=1025199 Are you on MR2's radio or MR2.5? 2.5 seems to do much better with GPS.

chimpsnest said:
So, I just flashed this ROM yesterday.
Full charge over night took phone off charger around 7ish this morning. Did a quick 30 minute run/walk workout w/the Cardio Trainer recording (tracking w/GPS), all while listening to the FM radio. I have had two phone calls totaling about about 7.5 minutes. Maybe 35 text messages in and out. I'm in a strong 4G area, I do not have my phone set to automatically get email. I just turned off the facebook hourly update, just noticed I hadn't done that yet ..... my phone is already barking at me that I need to plug it in.
With the exception of my run and listening to the radio this morning I really haven't done much .... I downloaded a couple of apps and tweaked them, but seriously 3.5 hours of battery before it's telling me less than 10%.
Any suggestions?
I did not clear the battery stats, in my past experiences that really didn't do anything to help (but that was w/the Eris).
I'd love to have GREAT battery life that everybody talks about. Anybody using this ROM have stupendous battery time? Not sure what has sucked the life out of this.
Thanks
Click to expand...
Click to collapse
What is using up your battery because if it is the Cell Standby or Phone idle I have a fix for you. I had always had great battery life until last week when it started draining as you describe in your post. I tried everything to get back to where I was but was not successful. I ended up pulling out the 4G card and reinserting it. I was instructed to do this by a Verizon tech. I though he was wasting my time but it fixed my battery issue and I am getting great battery life on BAMF 2.1 and also BAMF 1.86

mzimand said:
What is using up your battery because if it is the Cell Standby or Phone idle I have a fix for you. I had always had great battery life until last week when it started draining as you describe in your post. I tried everything to get back to where I was but was not successful. I ended up pulling out the 4G card and reinserting it. I was instructed to do this by a Verizon tech. I though he was wasting my time but it fixed my battery issue and I am getting great battery life on BAMF 2.1 and also BAMF 1.86
Click to expand...
Click to collapse
That's interesting, I wonder what that would do and why it would work? These phones do like to keep us on our toes, eh?
I've made the switch to CM as of yesterday so I'll be playing around w/that for a while.

Terrible battery life!

I really hate creating these threads because it makes me look likr a complete noob but I can' figire this out for the life of me. I bought the charge thinking I could use it for a day and change but I have yet to experience this awesome battery life. Even when I got my first day, the battery life was horrible and even after its first charge, it wasnt any better. Do I just have a bad battery or something?
Heres what I remember doing:
-Flash gummycharge day 2 of owning phone (1.8.5) novoodoo kernal
-An issue came up where I couldnt press my power button without the phone freezing
-so at this point I reverted back to a stock ee2 rom
-i then flashed gummycharged once again (same as above)
-after flashing, I charged my battey up, shutdown, wait for 100%, repeat 3x to wipe battery stats/calibrate my battery
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?

f3liC said:
I really hate creating these threads because it makes me look likr a complete noob but I can' figire this out for the life of me. I bought the charge thinking I could use it for a day and change but I have yet to experience this awesome battery life. Even when I got my first day, the battery life was horrible and even after its first charge, it wasnt any better. Do I just have a bad battery or something?
Heres what I remember doing:
-Flash gummycharge day 2 of owning phone (1.8.5) novoodoo kernal
-An issue came up where I couldnt press my power button without the phone freezing
-so at this point I reverted back to a stock ee2 rom
-i then flashed gummycharged once again (same as above)
-after flashing, I charged my battey up, shutdown, wait for 100%, repeat 3x to wipe battery stats/calibrate my battery
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
Click to expand...
Click to collapse
Download humble 1.25 and your battery woes will be no more my son....

Will take you suggestion and try it out tonight. I dont mean to derail my own thread but is it possible that when I flashed back to stock ee2, it caused my signal to decrease even though I put gummycharged over it later? Ever since I had to reflash because of the power button issue, I noticed a decrease in signal strength (from mid 80s to high 90s). Sorry for all the questions!

danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
Hi,
I saw your Humble ROM and was considering installing it to try to improve battery life as we'll.
What about your ROM conserves battery over the stock rom?
Now that p3droid released 2.3.4 I will certainly have to try it, do you plan to make a version of Humble using this new base?
Thanks for your work, I really am loving this new phone!
Ken
(Former DX afficianado)

An hour has passed with another 45 minutes of browsing. My battery is down to 40%. Really now?

f3liC said:
An hour has passed with another 45 minutes of browsing. My battery is down to 40%. Really now?
Click to expand...
Click to collapse
If you are getting that bad of battery life, go to EE4 Debloated . Flash P&J OC Kernel. and Undervolt your phone.

Whay would be causing this kind of battery life though?

f3liC said:
Whay would be causing this kind of battery life though?
Click to expand...
Click to collapse
No telling, depends on how you use your phone and what apps are running.

Thats the thing. I haven't been doing anything other than browsing. I only went to class and browsed for maybe 2 hours max. Everything else is 2% ish other than the dolphin hd browser. If I look at the battery stats, the display is the only thing thats depleting the battery really. I'm starting to think its because I have weak coverage in my area.

f3liC said:
Thats the thing. I haven't been doing anything other than browsing. I only went to class and browsed for maybe 2 hours max. Everything else is 2% ish other than the dolphin hd browser. If I look at the battery stats, the display is the only thing thats depleting the battery really. I'm starting to think its because I have weak coverage in my area.
Click to expand...
Click to collapse
I've had similar battery issues with two different Charge units running each ROM/Kernel (except GB). I also live in a weak coverage area where I average 1 to 2 bars, sometimes dropping to 0 and i'm convinced this has to be it. I had written this idea off initially because I previously had ATT and the same weak coverage with them, but nowhere near the same abnormal battery drain...so I guess there must be a difference between the way CDMA and GSM operate in this respect? I'm in a 3G only area and keep the phone locked to CDMA/Auto also.

danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.

Coming from the fascinate I honestly think the battery life is better. Although I turned lte off since we don't have any coverage for it yet. My mind will probably change when we get it. Running stock ee4 rooted with voodoo kernel. My father is running the same thing and also came from the fascinate, he completely agrees.
Sent from my SCH-I510 using Tapatalk

brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
I had really bad battery life on my phone running the stock rom and gummycharged. With the phone sleeping and only data on, I was losing at least 5% an hour.
I switched to Humble a week ago and my battery life is exceptional. I am ususally looking at 24 hrs with 4g on and longer with it off.
If you do a lot of browsing and keeping your screen on, your battery is going to burn quickly. No matter what ROM you are using. If it's draining a lot of battery in sleep, flash Humble.

danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
Dude, this isn't the fix. I'll flash Humble 1.25 right now and prove to you that it doesn't fix battery issues. Yes, it's less of a battery hog than the other available ROMs, but flashing Humble 1.25 will not fix your battery gremlin.
I wish Danalo, imnuts and the other gurus would spend more time figuring out this battery gremlin. Charging your battery to 100% then wiping battery stats through CWR doesn't work either. I've tried it countless times.
OP, here's another thread regarding the battery issues many people are experiencing - http://forum.xda-developers.com/showthread.php?t=1145161
brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
Don't give up so soon. The battery life on the Charge can be amazing and I know from experience. My experience also shows that there are funky battery issues that pop up when flashing various crap. Flashing an Odin bundle has not worked for me, at all. Wiping battery stats has not worked.
I was running GummyCharged 1.5 with the PBJT kernel and voodoo enabled and got 17+ hours of medium-hard use EASILY. Since then, I flashed the original GB leak, Gummy, Humble, Stock... I cannot figure out what the heck is going on, my battery life is still crap.

f3liC said:
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
Click to expand...
Click to collapse
It really sounds like signal issues to me. My Charge handles weak mobile signals better than my Thunderbolt, but any cell phone will really crank up the juice draw looking for a tower if it can't find one. In my north county office, my Thunderbolt will drain 25% per hour if I don't keep it near the window where it can get a better signal.
You need to post a lot more details.
Are you on wifi or mobile data? Are you 3G or 4G area? How strong is your 3G/4G signal?
Have you dug into the battery use screens to see what's up?
Grab Spare Parts from the Market if your ROM doesn't have it and look into it's battery statistics...things like wake-locks will really kill the phone.

brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
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Click to collapse
Humble isnt going to make a difference, what he should have said was to flash the PBJ OTB kernel. Not sure if he just wants more downloads for Humble or what lol.

If all you are concerned with is battery life on a phone then buy an iphone.... sheesh.
Sent from my SCH-I510 using XDA Premium App

mbh87 said:
Humble isnt going to make a difference, what he should have said was to flash the PBJ OTB kernel. Not sure if he just wants more downloads for Humble or what lol.
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Click to collapse
And no.... im not pimping downloads. Lol
If you calibrate your batt stats and use my rom you will see what alot of people are seeing. Thanks
Sent from my SCH-I510 using XDA Premium App

danalo1979 said:
If all you are concerned with is battery life on a phone then buy an iphone.... sheesh.
Sent from my SCH-I510 using XDA Premium App
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Click to collapse
Then what would we ***** about?

danalo1979 said:
If you calibrate your batt stats and use my rom you will see what alot of people are seeing. Thanks
Click to expand...
Click to collapse
I've done this countless times to no avail. I'm going to flash Humble 1.25 again in a bit, but it definitely didn't fix the battery issue earlier today when I flashed it. Yes I wiped battery stats. Yes the battery was at 100%.
I'm going to try the ridiculous procedure laid out in this thread - http://forum.xda-developers.com/showthread.php?t=1152088

Maximizing Battery Life

What do you guys do to maximize your battery life? I just can't seem to get decent life. Average is probably 5 hours with heavy usage.
Any recommendations?
Sorry if there is already a thread, I don't have a computer right now and I don't think I can search on tapatalk.
Thanks in advance.
Sent from my Nexus S 4G

The usual - brightness as low as you can stand, radios not in use turned off, screen timeout 15 seconds, 200-1400 conservative governor in SetCPU.
Search AutoKiller in the market -- choose "optimal" profile, so far has given me an extra two hours today over what I got yesterday.

5h of heavy use is good already.
You can tweak your idle batt life, 2g-only, undervolted kernel, avoiding power hungry rom.

Idle battery life is just amazing with stock... just test it over night, 6hrs get 2/3% for me.
I can get 30hrs with 4hrs with screen on, the screen is the key here, i can get 5hrs with 4hrs with screen on too. ;o)
Sent from my Nexus S using XDA App

thiagodark said:
Idle battery life is just amazing with stock... just test it over night, 6hrs get 2/3% for me.
I can get 30hrs with 4hrs with screen on, the screen is the key here, i can get 5hrs with 4hrs with screen on too. ;o)
Sent from my Nexus S using XDA App
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Try a kernel that is made to optimise batt life with display active, like the XTEUV92 Trinity kernel.

rentaric said:
Try a kernel that is made to optimise batt life with display active, like the XTEUV92 Trinity kernel.
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Click to collapse
I tried almost every single combination of rom + kernel. And for me, pure stock has the best battery life, by far.
But i'm getting bored and should flash something... )
Ps: afaik trinity doesnt work with stock. Did it change?
Sent from my Nexus S using XDA App

thiagodark said:
I tried almost every single combination of rom + kernel. And for me, pure stock has the best battery life, by far.
But i'm getting bored and should flash something... )
Ps: afaik trinity doesnt work with stock. Did it change?
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
See my signature, stock (rooted and removed soom Google apps) with Trinity, works together just fine

How would you define "heavy" usage?
Also, what does your "battery use" stats say? (Settings - About Phone - Battery Use)
5 hours of truly heavy usage (online gaming, for instance) is actually to be expected.

rentaric said:
See my signature, stock (rooted and removed soom Google apps) with Trinity, works together just fine
Click to expand...
Click to collapse
i'm using the same stock 2.3.4 as your signature and tried the morfic kernel from yours, but got no lock at all, freezes and reboots...
that's a little strange for me, first time i see it in my device... =o\\

johnbibbs said:
What do you guys do to maximize your battery life? I just can't seem to get decent life. Average is probably 5 hours with heavy usage.
Any recommendations?
Sorry if there is already a thread, I don't have a computer right now and I don't think I can search on tapatalk.
Thanks in advance.
Sent from my Nexus S 4G
Click to expand...
Click to collapse
You can create a custom prl setting. Turn wifi to never sleep when you're at home... Have the prl to auto *CDMA or GSM* Which ever your network is on. (This goes to all Nexus S. users). So you have wifi on with a signal and 3g off. The phone stays in 2g for calls and uses wifi for data. Turn off google location services while your at home, turn off roaming, turn all of that off. I get about 13 hours of battery life with heavy usage. People think wifi drains your battery but it doesn't if you have mobile data turned off. When you have 3g turned on it's constantly searching for a better connection. If you have wifi on and a strong connection it isn't constantly polling.

are there any charging habits that would help prolong battery life? I usually just charge my phone every night cause, if I remember correctly, these batteries don't have a memory or anything. anyone know if that is the smartest thing to do?

hoponpop said:
are there any charging habits that would help prolong battery life? I usually just charge my phone every night cause, if I remember correctly, these batteries don't have a memory or anything. anyone know if that is the smartest thing to do?
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I hope you don't mean overnight. I don't know if phones have auto-cutoff feature (a la laptops), but it's safer just not to charge overnight.
I personally use an extension that has a timer built-in. Nifty. Set the timer, plug the phone in, it will automatically start and stop the charging at the predetermined times. I usually time the charging to end right before I wake up, so the battery doesn't stay fully charged for too long. I heard batteries corrode faster when they're fully charged.
When my battery life starts getting shorter than usual, I let them drain until the phone turns off automatically (well I actually try not to get to that point, but seldom succeeded ), and as soon as possible charge it until full.
Usually the battery holds longer then. It has something to do with teaching the battery about the true empty and true full.. or something.....
AFAIK. CMIIW.

doesn't the nexus s have a built in cut-off feature so it will only charge to 95% though? I figure that would take care of the full charge issue. i'm also not sure if lithium ion batteries have a memory, but you could always reset the battery stats if you're on root to compensate for the whole draining and fully charging thing.

hoponpop said:
doesn't the nexus s have a built in cut-off feature so it will only charge to 95% though? I figure that would take care of the full charge issue. i'm also not sure if lithium ion batteries have a memory, but you could always reset the battery stats if you're on root to compensate for the whole draining and fully charging thing.
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Click to collapse
Battery stats! That's the word I was looking for No I wasn't referring to the memory effect
I don't know what would happen when the cut-off feature kicks up. My Nexus S still shows a charging icon even a while after full, so I don't wanna risk it.
The best way is by touching the charger unit after a while and see if it's warm/hot. If it is, it's still charging. But you gotta give it time to cool down first (after it's finished charging) Haven't gotten around to it, though. Always forgot to check the charger

bprabawabr said:
Battery stats! That's the word I was looking for No I wasn't referring to the memory effect
I don't know what would happen when the cut-off feature kicks up. My Nexus S still shows a charging icon even a while after full, so I don't wanna risk it.
The best way is by touching the charger unit after a while and see if it's warm/hot. If it is, it's still charging. But you gotta give it time to cool down first (after it's finished charging) Haven't gotten around to it, though. Always forgot to check the charger
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Click to collapse
lol, I know that my phone for sure won't charge to 100% from watching it, so even after a night of charging it's still at 95%. I've read a few explanations on this forum about the whole not fully charging thing too, so i'm pretty sure that it's like that on purpose.