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Strange battery issue...

So I get home from work this morning, pull my Inspire out of my pocket, and it's dead; no lock screen when I push the top button, nothing but black screen. Kinda strange, since I had just been using the phone a few minutes before while I ate breakfast before a 5 min drive home; it still had 22% charge right before I left. I put it on the charger.... nothing. Black screen, no amber light. I let it sit for about 15 minutes, still nothing. I drop it back in my pocket and put my shoes back on, about to head back out to the AT&T Store to exchange it, when I hear R2D2 in my pocket (I'm running LeeDoids ROM). Sure enough, it's booting.... wtf?
It's plugged up and charging right now, which kinda sucks in a way, because I was looking forward to exchanging it for a new one; my battery life sucks in it, worse than it should as far as I can tell with reading up on all the threads here. I'm trying to be very conservative with the settings lately in an effort to stretch battery life, with limited results. I've turned off auto-sync, installed Juice Defender, I turn off the wifi & bluetooth while I'm at work, running the display at 40%, but I'm still running the battery down damn quick if I actually use the device. Earlier this week, it ran itself down to <15% battery in just a few hours just sitting in my pocket, and I wasn't even using it; the only thing I could figure was that the auto-sync was on at the time and it had connection problems where I was in the hospital, making the phone burn up the battery trying to get a connection. When I looked at my battery info, the overwhelming majority of the battery use was for Android System. Now with auto-sync off, the display eats about twice as much of the battery as the system does.
I'm thinking of taking it back anyway if it acts up again. Has anyone else had one that just simply ate battery at a huge rate? LeeDroids ROM has a reputation of being pretty easy on the battery, but right now I'd have to say I'm worse on the battery than I was when it was stock. I'll probably try out a different ROM later today, just to check things.

SmittyRN said:
So I get home from work this morning, pull my Inspire out of my pocket, and it's dead; no lock screen when I push the top button, nothing but black screen. Kinda strange, since I had just been using the phone a few minutes before while I ate breakfast before a 5 min drive home; it still had 22% charge right before I left. I put it on the charger.... nothing. Black screen, no amber light. I let it sit for about 15 minutes, still nothing. I drop it back in my pocket and put my shoes back on, about to head back out to the AT&T Store to exchange it, when I hear R2D2 in my pocket (I'm running LeeDoids ROM). Sure enough, it's booting.... wtf?
It's plugged up and charging right now, which kinda sucks in a way, because I was looking forward to exchanging it for a new one; my battery life sucks in it, worse than it should as far as I can tell with reading up on all the threads here. I'm trying to be very conservative with the settings lately in an effort to stretch battery life, with limited results. I've turned off auto-sync, installed Juice Defender, I turn off the wifi & bluetooth while I'm at work, running the display at 40%, but I'm still running the battery down damn quick if I actually use the device. Earlier this week, it ran itself down to <15% battery in just a few hours just sitting in my pocket, and I wasn't even using it; the only thing I could figure was that the auto-sync was on at the time and it had connection problems where I was in the hospital, making the phone burn up the battery trying to get a connection. When I looked at my battery info, the overwhelming majority of the battery use was for Android System. Now with auto-sync off, the display eats about twice as much of the battery as the system does.
I'm thinking of taking it back anyway if it acts up again. Has anyone else had one that just simply ate battery at a huge rate? LeeDroids ROM has a reputation of being pretty easy on the battery, but right now I'd have to say I'm worse on the battery than I was when it was stock. I'll probably try out a different ROM later today, just to check things.
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Fully charge the battery to 100% then wipe battery stats in CMR. Hopefully that will help you out.
Sent from my Desire HD using XDA Premium App

Does wiping stats improve battery life, or just give you accurate future stats?
Sent from my Inspire 4G using XDA Premium App

Improves battery life and makes it more accurate. I would try downloading the Rom and make sure you flash everything. Also make sure your not over clocked.
Sent from my Desire HD using XDA Premium App

onthezone said:
Improves battery life and makes it more accurate. I would try downloading the Rom and make sure you flash everything. Also make sure your not over clocked.
Sent from my Desire HD using XDA Premium App
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I'm gonna reflash the ROM and see how it works before I try another one. I'll make sure I'm not overclocked too much, but others with LeeDroids ROM are getting good battery life with overclocking. The two big symptoms I'm looking at right now are heavier than expected battery drain, and the total lock up it had where it wouldn't even show a charging light.

dooyoo222 said:
Fully charge the battery to 100% then wipe battery stats in CMR. Hopefully that will help you out.
What is CMR? How do you wipe stats out? I looked for it in settings & couldn't find.
Thanks
Sent from my Desire HD using XDA Premium App
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Sent from my Inspire 4G using XDA App

CMR=Clockwork Mod Recovery. Reboot into recovery, select advanced, select wipe battery stats.

SmittyRN said:
CMR=Clockwork Mod Recovery. Reboot into recovery, select advanced, select wipe battery stats.
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tried it but I'm getting a phone icon with an exclamation point when i selected recovery

Does it only work on rooted phones?
Sent from my Inspire 4G using XDA App

Hey Smitty, I know it's been over a week but have you had better luck with your battery usage?
Also with regards to your unresponsive power issue. Given the size of this handset I've found it difficult to keep it in a pocket. I'd bet that the battery door wasn't connected good or got separated slightly in your pocket, probably getting in & out of your car. It doesn't look like it would take much to separate the contacts in there leaving you with what seemed like a dead phone.

I did a complete wipe and ROM switch... installed dilligafs, and I had much better performance. Using MIUI now, still getting good battery performance. I might have had a bad ROM install before or maybe I left a location using app running. As far as the strange black screen issue, I never did figure out what that was about; the phone was in a Otterbox case, and the battery cover was on tight, so I don't know what happened. It hasn't repeated itself, at least.
One thing I miss about the iPhone was the ability to set up a periodic sync, instead of an auto-sync like we have on Android. Auto-sync is either on or off, and when it's off I can't figure out how to get gmail to sync any way other than a manual sync. I could easily live with syncing every 15 or even 30 mins, and I'm sure it would give me much better battery life. Juice Defender claims to do this for you, but it doesn't work in Gingerbread it seems.

Are all Android phones this bad with battery life? *Update*

So here's a screen grab of my phone's battery. I work 9-5. Started the day with fully charged battery, and end of work day it's almost dead. Honestly, I never thought it would be this bad. I don't play games or watch endless videos on youtube. I've sent about 15 texts messages max, used the phone to make about 4 calls for a max talk time of 6min. And browsed the net for no longer than 5min. I have wifi always off, GPS off, my screen is always set right down to absolute minimum all the time. I have never used live wallpaper, and have a black wallpaper. All I've done to this phone is root it and remove a lot of bloatware. Nothing else. I've read through the forum and came upon this thread:
http://forum.xda-developers.com/showthread.php?t=1092249
So without running the Bali kernel or running any specific rom, Is this the expected battery life for the average person who just leaves the phone completely stock.
*UPDATE*
JuiceDefender works!!! Battery now last much longer. Thanks goes to jager555 for the great suggestion.

Most high end ones are. because android runs things in the background and allows you to customize many settings, Battery life usually looks like that when you first get your phone. That said once you get familiar with your phone you will start to recognize things that run in the background that serve you no purpose and you can stop them or get rid of that app. You can also get custom roms that have great modifications to enhance your battery's life. It takes some experimentation but gone are the days of getting 4 days out of you Razr. Try searching "battery saver" in the market, too.
It could look like this...

Well I have to say that's quite shocking. The average person just has no clue on how to flash roms or anything like it. They just charge their phone and go. It really makes me wonder why Google or the phone manufacturers wouldn't think battery life to be a priority. The battery life isn't just bad, its unacceptably bad.
Thanks for the input though.

Yeah no thats not normal. When i first got this phone i could go up to twelve hours non stop with regular use text here and make some phone calls, watch one or two videos... And i still had battery left probably like 40% maybe less. Well at least for me i dont know if i was a special case or not.
Sent from my SGH-T959V using XDA App

if you are on stock and do not use the bali kernel, get Juice Defender from the market. try it out for 2 days and get back to me on how it works. if you want the best battery life, especially since you take off gps and wifi, set it to aggressive. that should make the battery last MUCH longer with your type of usage. but once again, use it for 2-3 days for it to settle in properly

jager555 said:
if you are on stock and do not use the bali kernel, get Juice Defender from the market. try it out for 2 days and get back to me on how it works. if you want the best battery life, especially since you take off gps and wifi, set it to aggressive. that should make the battery last MUCH longer with your type of usage. but once again, use it for 2-3 days for it to settle in properly
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Will do. You got my hopes up.

its usually the screens, emails, and txts that kill my battery lol

Tempott said:
Will do. You got my hopes up.
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yea, my dad is on stock with this phone and it wouldnt last from 7am to 2pm. now it lasts from 7am to at least 8pm with the same type of usage. its a neat program. i hope it works well for you.

I'll second juice defender. Even the free beta version has helped my phone last a long time. but if you aren't using your phone much, you should really get a lot better battery life than that. if it's brand new, it can take the battery a couple of charges from a full drain to get up to snuff.
With light use, I can get well over 2 days, and have even gotten over 3. Here's a screenshot I took a couple of weeks ago.

mike-y was the one who introduced me to juice defender, btw. great find, man

Wow, Tempott, that's very short battery life. I actually had pretty decent battery life on stock. I lasted about 12 hours on moderate use. Then again, it's funny that I last 18 hours on very heavy use now with ICBINB with 4G on, first level brightness, and sync always on (no JuiceDefender, etc.).

i am using Audiophile ROM. i get 10-15h of battery life.

Im using black ice with bali 3.1uv dsexton's build.prop and im getting round 12-15 with heavy use(mobile AP, pandora, calls)
Sent from my SGH-T959V using XDA App

Did you try juice defender? if so, what were the results?
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jager555 said:
Did you try juice defender? if so, what were the results?
Sent from my SGH-T959V using XDA Premium App
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Sorry for the late reply, but I just wanted to give the app a thorough usage. I'm happy to say it really makes a difference. I was so disappointed with the battery life that I had a serious bout of buyer's remorse. This App made a world of difference. Thanks for the suggestion! Glad to have this phone now. Check out the screen shot!

Nice!! that's great. I liked the beta app so much I went ahead and paid for the "plus" version. "Plus" gives JD control over wifi, and lets you set a "night mode" that turns off data/wifi/gps/bluetooth during the night when you sleep. There is also app control, which I played with, but ended up just disabling it (makes things a lot simpler).
Honestly, if the beta is working for you, there isn't much need for the paid versions. especially if you put your phone in airplane mode when you got to sleep (or just turn it off).
btw, current uptime = 40 hours, 45 mins, and I still have 70% battery left.

It seems to me Battery Calibration doesn't work...however, this phone lasts longer than the Sensation, which personally sucks.

battery calibration works fine. make sure your phone is charged to 100%. check spare parts amd make sure it is at 4200mV. sometimes, if it is not calibrated properly, it will show 100% and not 4200. unplug the phone and immediately plug it back in and you will notice a fluctuation in the numbers. usually, it is a big fluctuation. once you are as close to 4200 as you think you are going to get while the phone is plugged in, open the battery calibration app and click calibrate. then immediately unplug the phone. use it until it is completely dead (i do it until i shuts down). once this is done, charge the phone until it is 100%. do no unplug the phone until it is at 100%. then drain it again. and charge it to 100% again. after that, use it normally for 2 to 3 days and you will notice the difference in efficiency.

jager555 said:
battery calibration works fine. make sure your phone is charged to 100%. check spare parts amd make sure it is at 4200mV. sometimes, if it is not calibrated properly, it will show 100% and not 4200. unplug the phone and immediately plug it back in and you will notice a fluctuation in the numbers. usually, it is a big fluctuation. once you are as close to 4200 as you think you are going to get while the phone is plugged in, open the battery calibration app and click calibrate. then immediately unplug the phone. use it until it is completely dead (i do it until i shuts down). once this is done, charge the phone until it is 100%. do no unplug the phone until it is at 100%. then drain it again. and charge it to 100% again. after that, use it normally for 2 to 3 days and you will notice the difference in efficiency.
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I would like to add that the first charge drains amazingly fast. You can be idling your phone the whole day, and it'll still be gone.
After you go through a few charges, it'll be omgwtfbbqhax battery life.
Btw, I'm betting Bali 3.3UV + JD is pretty beast battery life compared to Bali 3.3 + JD, right?

Juice defender works great for me as well! Very noticeable difference

[Q] is rooting always like this

Maybe this is due to my lack of experience, but maybe not. It seems like every time I put a new ROM on my phone it goes to hell in about a month. I'm not a technician but I can follow directions for installation, patches, etc. So far I have had 0 long term success in installing a ROM that ends up being any better than stock after 30-60 days.
For example, I've had issues with battery drain, random booting while the phone is powered off, redraw issues, serious lag, data connectivity issues, and a few other things. It seems like its always something.
The only phones I've toyed with are my old Eris and my Charge. Is this a phone issue, noob issue, or is this par for the course? If it is par I'll end up back at stock and have mediocre performance rather than have a buzz saw that ends up needing constant tweaking and maintenance.
Btw this isn't a knock on developers. I appreciate them sharing all their hard work. I just want to know if everybody else goes through this or am I holding a bag of stupid.

Just rooting does nothing more than give you superuser access. It doesn't even do anything that uses the root specifically. Different roms do different things, but nothing to use battery...mostly they take things out rather than put things in.
Best thing to do is look at BetterBatteryStats and track partial wakelocks. That will tell you what is waking up your system and if there's anything spiking it, you can deal with it. Most of what really drains battery on this phone, other than bad apps, is somewhat random, and it will affect non-rooted phones just as much as rooted.

Must be something you did, picking a good rom make a big different. In my case. I flashed tweakstock to my daughter's phone since the first day it released (with tweakstock kernel), and never, I repeat never have any issue, when tweakstock 1.4 released, this is the second time I touch her phone and up until now she hasn't have any issue. If you use eclipse rom, PBJ kernel, Imonsey kernel, you're going to have issue. They are not bad roms or kernels, but they do have bugs. This is my experience.

Yeah, I think it's you. On stock, I'll be lucky to get 12 hours usage in a low signal environment. On a custom ROM, with custom kernel, I'll make it through the day. Of course, I've had a couple of random total crashes where I had to go at it again, but I deal with it.
PROTIP: the Facebook app needs to be told to stfu constantly. I would get an app like System so you can kill it easily-it still stays in RAM and in wakelock, taking clock cycles, even if you close it by backing out. I found that this was one of the best battery savers.
Sent from my SCH-I510 using xda premium

kvswim said:
Yeah, I think it's you. On stock, I'll be lucky to get 12 hours usage in a low signal environment. On a custom ROM, with custom kernel, I'll make it through the day. Of course, I've had a couple of random total crashes where I had to go at it again, but I deal with it.
PROTIP: the Facebook app needs to be told to stfu constantly. I would get an app like System so you can kill it easily-it still stays in RAM and in wakelock, taking clock cycles, even if you close it by backing out. I found that this was one of the best battery savers.
Sent from my SCH-I510 using xda premium
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Yes, I agreed with kvswim, Facebook is a big battery drainer, I ended up using the browser for facebook, it's not as nice as the FB app, but once you get a hang of it. It's fine. I suggest if you want trouble free, ODIN pit file and original factory image, then upgrade to tweakstock with tweakstock kernel, then install Go launcher for smoothness. To save battery even more install battery saver by Antutu.(keep all default settings, don't play with it). You will see big improvement with both battery and smooth trouble free phone.

Please use the Q&A Forum for questions &
Read the Forum Rules Ref Posting
Moving to Q&A

buhohitr said:
Yes, I agreed with kvswim, Facebook is a big battery drainer, I ended up using the browser for facebook, it's not as nice as the FB app, but once you get a hang of it. It's fine. I suggest if you want trouble free, ODIN pit file and original factory image, then upgrade to tweakstock with tweakstock kernel, then install Go launcher for smoothness. To save battery even more install battery saver by Antutu.(keep all default settings, don't play with it). You will see big improvement with both battery and smooth trouble free phone.
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you really find a battery saver to be helpful. Every time i try one it ends up costing me more battery life than it saves.
As for the phone issues. Are you wiping data, cache, and dalvik before you flash? Not doing so can really muck things up. And a lot of times its just an annoying app that sucks up all ur juice, ie words with friends and facebook. I use them alot so I deal, but u can definitely tell the difference when u dont have those apps installed.

No i dont think its u...i have problems also.i jus made a post about my home/hard key...its always seems to b something after the next.but it looks like people find ways to deal and eventually conquer.also i appreciate wat the developers do.its alot of work and headaches.on top of posting and replying to many many people.its the roms that cause problems...constant tweaking and toying around...alot of times things jus need to b debugged a little it seems.but its all in the nature of what were all doing here.good luck to u
Sent from my Gummy Charged GBE 2.1 using XDA App

cnoevl21 said:
you really find a battery saver to be helpful. Every time i try one it ends up costing me more battery life than it saves.
As for the phone issues. Are you wiping data, cache, and dalvik before you flash? Not doing so can really muck things up. And a lot of times its just an annoying app that sucks up all ur juice, ie words with friends and facebook. I use them alot so I deal, but u can definitely tell the difference when u dont have those apps installed.
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Hey. how about give the "battery saver" app by Antutu a try. This is one of the kind. It does not kill processes like others. It actually readjust cpu frequency during usage and put your phone in heavy deep sleep, after installed, let it run for 2 days, you will notice at least 3-4 hrs more during usage and 10+ if you let your phone sleep. I have test this app with wifi,4g,gps on 24/7 and I still have good battery life.

I downloaded betterbatterysaver to check my stats. Now to figure out how to read the data. Any suggestions? I've searched Google and it seems to be a mystery for many. It appears that Dolphin HD is using most, but I kill the program when I'm done???? I switched to mini and froze HD to troubleshooting. I only use FB browser too. I ditched the app long time ago.
Before I flash I wipe dalvik cache, data, and then wipe it again. I follow directions closely since I can't figure my way out if something goes wrong. I'm running tweakstock's latest right now and I'm really enjoying it. Very stable and snappy. However, the battery problem is killing the experience. It drained fro. 69% to dead in 6 hours overnight! Switched from 1.1 because the phone got very laggy and the hand off between 3-4g was getting dropped and I was losing data connection.
I will try the battery saver app. Just got battery calibrated and still not any better. My need to have a phone that doesn't suck will keep me playing with this thing until I get it right. My Charge is used so much it's like my third hand.

donkason said:
I downloaded betterbatterysaver to check my stats. Now to figure out how to read the data. Any suggestions? I've searched Google and it seems to be a mystery for many. It appears that Dolphin HD is using most, but I kill the program when I'm done???? I switched to mini and froze HD to troubleshooting. I only use FB browser too. I ditched the app long time ago.
Before I flash I wipe dalvik cache, data, and then wipe it again. I follow directions closely since I can't figure my way out if something goes wrong. I'm running tweakstock's latest right now and I'm really enjoying it. Very stable and snappy. However, the battery problem is killing the experience. It drained fro. 69% to dead in 6 hours overnight! Switched from 1.1 because the phone got very laggy and the hand off between 3-4g was getting dropped and I was losing data connection.
I will try the battery saver app. Just got battery calibrated and still not any better. My need to have a phone that doesn't suck will keep me playing with this thing until I get it right. My Charge is used so much it's like my third hand.
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Did you try to disable(freeze) SDM app and also Google service? May need to backup all your apps and do a factory/data reset, If not help, possible to re ODIN factory image (see pos # 5) since you have data drop issue. Some thing is mess up in your OS.
For betterbatterystats look at wakelock and see what process used the most.

If it died overnight then something is definitely eating your battery. Are you in a low signal environment? Go to settings, about phone, then battery usage. If anything besides display is taking more than around 5-10% (can be more if you use it a lot) then that's your main problem. If your cell standby is more than 25% it's the low signal that's killing the battery.
Sent from my SCH-I510 using xda premium

Data is up and running smooth after flashing newest tweakstock. My home has a strong signal and my bedroom is sometimes 4G so I don't believe the signal was low, unless the transition between radios killed it. However, it wasn't a problem 3 weeks ago.
I did freeze SDM and noticed some improvement. Buhohitr, did you mean freeze Google services framework?
Battery usage seems to be normal for now. I am noticing Dolphin is no Singer sucking down 35% or more since I switched to Mini. It doesn't even show up on the list.
I'll see how it goes today and report back on wakelocks. If it doesn't get any Beyer ima Odin to stock and root/flash tweakstock again.
Also, the battery doesn't drain unusually fast wile in use, browsing, music, etc. But when it sits it drains at 3-4% an hour.

I would try manually calibrating your battery. It really worked for me. On average I get about 18-19 hours on one charge with medium to heavy data usage throughout the day. There is a thread in the General section.. I'll post a link in a little bit.
EDIT: Here is the link. It's a stickie but I figured I'd save you a little extra time. http://forum.xda-developers.com/showthread.php?t=1187698
Sent from my Tweaked Droid Charge using XDA App

ewh1292 said:
I would try manually calibrating your battery. It really worked for me. On average I get about 18-19 hours on one charge with medium to heavy data usage throughout the day. There is a thread in the General section.. I'll post a link in a little bit.
EDIT: Here is the link. It's a stickie but I figured I'd save you a little extra time. http://forum.xda-developers.com/showthread.php?t=1187698
Sent from my Tweaked Droid Charge using XDA App
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Wiping battery stats is a complete placebo. All the battery stats stores is the state of apps as related to various things that affect battery life (like display on time, screen brightness over time, and wakelock states). It does nothing that will actually affect your battery life one iota. It is actually cleared every time you charge your battery to 100%, so manually wiping it is completely pointless.
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT

shrike1978 said:
Wiping battery stats is a complete placebo. All the battery stats stores is the state of apps as related to various things that affect battery life (like display on time, screen brightness over time, and wakelock states). It does nothing that will actually affect your battery life one iota. It is actually cleared every time you charge your battery to 100%, so manually wiping it is completely pointless.
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
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I'm well aware of the post of Dianne Hackborn debunking the myth of wiping the battery stats; however, if you actually read the post on the steps to calibrating your battery, it's not just wiping your battery stats. There's actually a few more steps involved. You're right though, if you just wipe the battery stats and expect better battery life you're just wasting your time.
Sent from my Tweaked Droid Charge using XDA App

donkason said:
Data is up and running smooth after flashing newest tweakstock. My home has a strong signal and my bedroom is sometimes 4G so I don't believe the signal was low, unless the transition between radios killed it. However, it wasn't a problem 3 weeks ago.
I did freeze SDM and noticed some improvement. Buhohitr, did you mean freeze Google services framework?
Battery usage seems to be normal for now. I am noticing Dolphin is no Singer sucking down 35% or more since I switched to Mini. It doesn't even show up on the list.
I'll see how it goes today and report back on wakelocks. If it doesn't get any Beyer ima Odin to stock and root/flash tweakstock again.
Also, the battery doesn't drain unusually fast wile in use, browsing, music, etc. But when it sits it drains at 3-4% an hour.
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Click to collapse
To disable Google Service, go to settings -> location&security and uncheck Google service. Do not freeze Google framework. Also seems like your phone is not in deep sleep, please install "battery saver" by Antutu and let it works for 24 hrs, you should see huge different when your phone is sleeping. BTW what kernel are you using? If you're using PBJ kernel you can install "CPU tuner" to further keep your phone in deep sleep. I'm talking about 1% for 3 hrs sleeping.

I'm curious as to what Battery Saver actually does. The app's market page doesn't say. I'd be curious if it would interfere with my IMAP push email or SetCPU's overclock settings.

ewh1292 said:
I'm well aware of the post of Dianne Hackborn debunking the myth of wiping the battery stats; however, if you actually read the post on the steps to calibrating your battery, it's not just wiping your battery stats. There's actually a few more steps involved. You're right though, if you just wipe the battery stats and expect better battery life you're just wasting your time.
Sent from my Tweaked Droid Charge using XDA App
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I've done that and never seen an actual difference. Like I said before, I have no reason to believe that any of it is anything other than placebo. My normal daily variability in use is more than enough to account for any perceived differences. On top of it all, bump charging is not good for a Li-Ion battery, so if anything, those instructions are a good example of how to lose long-term battery life for short term gain.

shrike1978 said:
I've done that and never seen an actual difference. Like I said before, I have no reason to believe that any of it is anything other than placebo. My normal daily variability in use is more than enough to account for any perceived differences. On top of it all, bump charging is not good for a Li-Ion battery, so if anything, those instructions are a good example of how to lose long-term battery life for short term gain.
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Personally, I believe that most of the time the procedure does nothing. I think there are times, though, that corrupt data gets into the battery stats. For instance, I had an app lock up my phone and force a hard boot. When the phone came back up, it showed 22% more battery than it had previously. I believe that bad data such as this can over time affect how Android reads your battery life. In that instance, I believe clearing battery stats would help. I don't think doing it just because a new ROM was flashed actually does anything, though.

"Hypermiler" (Battery Life) Tips

This is a little bit of a boast, I guess you could say... but also educational in a way.
This is my most recent battery life. I found that when I posted my screenshots, people think they are faked in some way. (Posted it here and other GS3 forums) They are not. I am using the stock battery my phone came with. NOT an extended battery. And you can see from the battery graph that the phone was not charged. I guess this is to show that you can use your phone heavily, and still get amazing battery life.
I am using the stock jellybean leak. Not rooted or unlocked.
This is everything I have done to get good battery life.
-I turned the LED touch lights off (I don't like them, they're so bright)
-I have all vibrations off. My phone does not ever vibrate.
-I have power save on.
-I have S-Voice "wake command" off.
-I have motion control disabled.
-I am almost always on wifi (work & home)
-When I am on wifi, I turn mobile data off.
-When I am going to bed, I put my phone in airplane mode.
-I rely heavily on the task manager, I clear my open windows and under the "RAM" tab I clear memory. Probably once an hour.
-I have my sync OFF. I check my email manually.
-Auto brightness.
-I never partially charge. I let my battery go all the way down to 1% then I charge it to 100%. Always.
-Always have a dark background, if possible.
Thats everything. Mind you, I didn't make or receive any phone calls on this cycle. But I did use my phone, as you can see I didn't just let it sit around. Device idle was like 3%?
Anyone else a "hypermiler" like me? I don't get this much screen time every time, it ranges from 5-7. I've gotten more than this and I've gotten less.
Hope this can help even if it's only a little.
Sent from my SCH-I535 using xda app-developers app

josh995 said:
-I rely heavily on the task manager, I clear my open windows and under the "RAM" tab I clear memory. Probably once an hour.
-Auto brightness.
-I never partially charge. I let my battery go all the way down to 1% then I charge it to 100%. Always.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
-Clearing the ram too much actually drains the battery more because certain apps will have to auto start again every time you clear memory
-Keeping it at around 0-30% all the time should save you more.(I can still see my screen during the day at 30%)
-That doesn't do anything.

josh995 said:
-When I am going to bed, I put my phone in airplane mode.
-I rely heavily on the task manager, I clear my open windows and under the "RAM" tab I clear memory. Probably once an hour.
-Auto brightness.
-I never partially charge. I let my battery go all the way down to 1% then I charge it to 100%. Always.
Click to expand...
Click to collapse
-Are there no A/C outlets in your bedroom?
-What the previous guy said, this is a stupid thing to do. Java was designed around efficient use of resources, and restarting running apps (which would happen, unless you have them removed entirely) would use more processing power than you had saved by not having the tasks running in the first place.
-Using Auto is causing the system to periodically poll the light sensor, draining more battery than used otherwise.
-This is how you kill Li-Ion batteries (one way, at least). The whole spiel about discharging fully, THEN charging fully or the battery will have some sort of "memory" of capacity less than actual capacity is how Ni-Cad rechargables work, not Li-Ions. Li-Ion batteries are the opposite. For superior life, keep them topped up as much as possible. FYI
I hope THIS helped, more than a little.

There are plenty of outlets in my room. Lol I just don't need to use them that often as you can see also I hate getting calls and messages in the middle of the night but I use my phone as an alarm sometimes so airplane mode just seems convenient.
This is just what I do. I mean, some of the things I do may not help at all. But this is what I do with Android phones and I've always gotten really good battery life. I've always, always gone down to 1% then charged up to 100% and I've never had a battery go bad on me. Then again I only ever keep a phone for 1 year. I do know that these batteries don't have the memory problem, I just can't bring myself to not fully discharge or charge. I have mild OCD, for real. Little things like that brother me
I'll play with backlighting to see what that does for me.
I've gotta be doing something right. Idk about the task manager, I've just always liked not having programs running if I don't need them to be. I know they arent "running" but it just gives me peace of mind, I guess.
Thanks for the recommendations I will try them.
Sent from my SCH-I535 using xda app-developers app

josh995 said:
There are plenty of outlets in my room. Lol I just don't need to use them that often as you can see also I hate getting calls and messages in the middle of the night but I use my phone as an alarm sometimes so airplane mode just seems convenient.
This is just what I do. I mean, some of the things I do may not help at all. But this is what I do with Android phones and I've always gotten really good battery life. I've always, always gone down to 1% then charged up to 100% and I've never had a battery go bad on me. Then again I only ever keep a phone for 1 year.
I'll play with backlighting to see what that does for me.
I've gotta be doing something right. Idk about the task manager, I've just always liked not having programs running if I don't need them to be. I know they arent "running" but it just gives me peace of mind, I guess.
Thanks for the recommendations I will try them.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
You getting really good battery life =/= you getting the best battery life possible.
I have pushed ~2 days of battery life without charging many times on my GS3 (with all the bells and whistles running, just mobile data turned off when i'm not commuting), i just don't have a reliable measurement because:
1. I'm flashing mods/roms/kernels/whatever multiple times per week, and
2. I usually charge my phone when it's convenient, which is fairly often.

charlieg90 said:
You getting really good battery life =/= you getting the best battery life possible.
I have pushed ~2 days of battery life without charging many times on my GS3 (with all the bells and whistles running, just mobile data turned off when i'm not commuting), i just don't have a reliable measurement because:
1. I'm flashing mods/roms/kernels/whatever multiple times per week, and
2. I usually charge my phone when it's convenient, which is fairly often.
Click to expand...
Click to collapse
I stopped flashing because of my OCD. I mean, I'm not crazy but it causes perfection issues and all the ROMs I was flashing had glitches here and there and Idk if you've known anyone with OCD but with the perfection issue, those glitches were all I could think about. So there went flashing. Lol.
Also comes into play with the charging thing. You seem knowledgeable in what you said but even though you said keeping it topped up is best, in my mind, that's destroying my battery. Lol. I really do appreciate your info though.
Sent from my SCH-I535 using xda app-developers app

josh995 said:
my OCD
Click to expand...
Click to collapse
I'm glad you said it, so that I didn't have to. :silly:
I read your post and the first thing that came to mind was, "there is medication for that, you know.":laugh:

Here's my .02. My battery never lasts that long. Not even close. I'd feel disappointed if it did. I bought my gsiii with the intent of gobbling up unlimited data and using the oc'd processor to run apps till the phone is so hot I have to set it down. I've burned up almost 6gigs of data since the 7th. I get around 4 hours of screen on time most generally. I also throw it on a charger whenever I have the chance. My battery rarely dips below 50%. Like others have said, full discharge cycles are for ni-cad batteries. Li-ion doesn't benefit. Good battery life for me is the lg flip phone we have on a diff line that lasts a couple weeks.
Sent from my SCH-I535 using Xparent ICS Tapatalk 2

josh995 said:
I stopped flashing because of my OCD. I mean, I'm not crazy but it causes perfection issues and all the ROMs I was flashing had glitches here and there and Idk if you've known anyone with OCD but with the perfection issue, those glitches were all I could think about. So there went flashing. Lol.
Also comes into play with the charging thing. You seem knowledgeable in what you said but even though you said keeping it topped up is best, in my mind, that's destroying my battery. Lol. I really do appreciate your info though.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Okay, okay, as long as you admit it... I'll stop being a snarky jerk. I'm totally the same way though. Perfectionist to the core.

It's a very bad idea to let the battery go down to 1% regularly, lithium batteries should be charged more often for better life and more cycles

Sorry but I still just don't believe 7 hours of screen on time. 4 is above average even amazing screen on time for this phone and stock battery. I suppose there is the possibility of using 0 percent brightness, or even lux brightness or something similar to get the brightness even lower.
You said you use auto brightness, I'm sorry I just don't buy it.
People with the extended batteries are getting 7 hours of screen on time not stock batteries.
7 hours of screen on time is literally double almost every other phone on the market with stock batteries. I really fail to see how having minimum usage and a high performing rom will get you double screen on time.
Edit: with that said, in my current situation I will never have wifi access plus I tether a lot so I really have yet to personally see screen on time since I rooted. Before root and stock I got about 3.5 of screen on time.
Not trying to be a douche or anything just very curious about how 7 hours comes about.
Sent from my SCH-I535 using Tapatalk 2

bond32 said:
Sorry but I still just don't believe 7 hours of screen on time. 4 is above average even amazing screen on time for this phone and stock battery. I suppose there is the possibility of using 0 percent brightness, or even lux brightness or something similar to get the brightness even lower.
You said you use auto brightness, I'm sorry I just don't buy it.
People with the extended batteries are getting 7 hours of screen on time not stock batteries.
7 hours of screen on time is literally double almost every other phone on the market with stock batteries. I really fail to see how having minimum usage and a high performing rom will get you double screen on time.
Edit: with that said, in my current situation I will never have wifi access plus I tether a lot so I really have yet to personally see screen on time since I rooted. Before root and stock I got about 3.5 of screen on time.
Not trying to be a douche or anything just very curious about how 7 hours comes about.
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
you dont get 7 hours because you are not doing what op did for perfection, and you just like other "4 hour" guys in this thread. I can confirm 7 hours usage is totally possible and what left can support one day idle time when you turn off data etc. Iusually dont do that because I like my phone work at full functionality, but I also like tinkering around to keep maximum use of juice, by eliminating wake locks and autostart.
killing background helps sometimes because some stupid apps keeping using cpu after backgrounded. op go and get a iphone, its perfect for OCD since it can get zero unwanted background activity, amazing idle time and stable usage with relatively easier configuration and tweaking.
1% is NO. 1 battery killer, heat is NO. 2, top up at 100% is NO. 3. Li based battery is at best 40%. but plaese its just a phone, charge and use anytime you want. phone outdated way earlier than battery.
Sent from my SCH-I535 using Tapatalk 2

generalmilk said:
you dont get 7 hours because you are not doing what op did for perfection, and you just like other "4 hour" guys in this thread. I can confirm 7 hours usage is totally possible and what left can support one day idle time when you turn off data etc. Iusually dont do that because I like my phone work at full functionality, but I also like tinkering around to keep maximum use of juice, by eliminating wake locks and autostart.
killing background helps sometimes because some stupid apps keeping using cpu after backgrounded. op go and get a iphone, its perfect for OCD since it can get zero unwanted background activity, amazing idle time and stable usage with relatively easier configuration and tweaking.
1% is NO. 1 battery killer, heat is NO. 2, top up at 100% is NO. 3. Li based battery is at best 40%. but plaese its just a phone, charge and use anytime you want. phone outdated way earlier than battery.
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
While I understand what you're saying I think you misread my post. I was strickly referring to the screen on time which 7 hours of screen on time with stock battery is inconceivable. 4 is about the most you would normally see.
7 hours of USAGE is common.
Sent from my A500 using Tapatalk 2

Well I mean. You don't have to believe me. I mean I have nothing to offer but my word. I do use auto brightness. But because of the suggestion I'll probably set it to manual and see what that does.
I got 7 hours screen on time with the stock battery. The battery says "3.8 v li-ion battery"
I've gotten more than this is the past but I've also gotten less.
Like I said you don't have to believe me but... I'm using the stock battery.
And to the poster who mentioned to get an iPhone - I have one for my business line
Sent from my SCH-I535 using xda app-developers app

battery statistics are poor statistics in general. there are too many variables. luckily we have removeable batteries if we need mroe juice.
heres some postings to add to the mix
put my phone through the paces with fantasy football.
held up pretty well. stock battery mind you. on pace for nearly 8 hrs of on screen time. This isnt with typical use though... With typical use I can get 20hrs and 5-6 hrs of screen time. I thought anywhere from 4-6 hours of on screen time was what people were suppposed to be getting.

Yeah we all use our phone differently. I rarely actually talk on the phone with my GS3 because I use my iPhone for that. But everything else I do on my GS3, reading news, some browsing, xda.
I just thought I'd share what I do for people that may want to get better battery life.
Sent from my SCH-I535 using xda app-developers app

bond32 said:
While I understand what you're saying I think you misread my post. I was strickly referring to the screen on time which 7 hours of screen on time with stock battery is inconceivable. 4 is about the most you would normally see.
7 hours of USAGE is common.
Sent from my A500 using Tapatalk 2
Click to expand...
Click to collapse
Then I shouldn't use the word "usage". I meant 7 hours screen on time. Sometimes I got 8 or more, but only use it continuously after charging, no idle time.
---------- Post added at 12:10 PM ---------- Previous post was at 11:58 AM ----------
josh995 said:
Yeah we all use our phone differently. I rarely actually talk on the phone with my GS3 because I use my iPhone for that. But everything else I do on my GS3, reading news, some browsing, xda.
I just thought I'd share what I do for people that may want to get better battery life.
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Yet that involves turning off data. IMO the smartphone should always stay online. In my experience, iPhone can get constant -4 ~ -5ma juice flow during idle even with data (2G) and all the push notifications on, which are the only things I want for stay online. I feel its hard to get similar result on my GS3 though.

generalmilk said:
Yet that involves turning off data. IMO the smartphone should always stay online. In my experience, iPhone can get constant -4 ~ -5ma juice flow during idle even with data (2G) and all the push notifications on, which are the only things I want for stay online. I feel its hard to get similar result on my GS3 though.
Click to expand...
Click to collapse
I'm always online, whether it's wi-fi or 4G. Luckily I have wi-fi at home and at work.
Like, literally as I'm walking out the door of my house, I turn on my mobile data, and when I get to work I turn it off. When I'm leaving work I turn mobile data back on and when I get home I turn it off.

josh995 said:
I'm always online, whether it's wi-fi or 4G. Luckily I have wi-fi at home and at work.
Like, literally as I'm walking out the door of my house, I turn on my mobile data, and when I get to work I turn it off. When I'm leaving work I turn mobile data back on and when I get home I turn it off.
Click to expand...
Click to collapse
what you did is pointless. If you leave data on, data is not connected when wifi is connected, and it will connect automatically when no wifi connection.

generalmilk said:
what you did is pointless. If you leave data on, data is not connected when wifi is connected, and it will connect automatically when no wifi connection.
Click to expand...
Click to collapse
It's not pointless to me. As I said a few posts before... I have OCD, obsessive compulsive disorder. Things like this affect me. I know that being connected to Wi-Fi that data is not connected, but in my brain, it's as if something is telling me that because my data toggle is on, it's running.
I really can't help it.
Sent from my SCH-I535 using xda app-developers app

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.