This is it !! - T-Mobile Samsung Galaxy S II SGH-T989

I am extremely frustrated. My phone has always been bad with battery life. Its been over a year or so that I have not seen my phone last longer than 5-6 hours. I am constantly looking for any chance I get to charge my phone. My life revolves around checking battery %age and plugs to charge. Smart phones were suppose to be helping us, but its like they are using me to feed the juice every chance they get.
My T989 is a "SMART" phone with
- lowest on screen brightness (and a screen dimmer overlay)
- no NFC
- no haptic feedback or keytone sounds
- No animations or graphic heavy launchers
- dont play games any more
- turn off 4G/data anytime I get a chance
- No GPS
- Manual Sync emails, facebook and whatsapp
HELL, I want to go back to the age of Nokia's where the batteries would last you through weekend and still some juice left even after it goes through laundry.
But that is not what I am here to complaint about.
I would like to know what ROM+Kernel you have and how much battery life you get ? (w/ screen time)
Who else is going through these ?
Note: Currently on JB stock and a new OEM replacement battery

How often are you using your phone? It uses a lot more battery when the screen is on. You can get over 24 hours of battery life by not touching your phone at all/no apps running.
I think most people average around 3 hours of display time without charging. Check in settings/battery/display.
I'm running AOKP and depending on how often I use my phone it can really deplete my battery.
Sent from my SGH-T989 using xda app-developers app

Get a new battery maybe? I'm sorry for your issues.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

I've been running CM 10 for awhile, and I've been getting great battery life. Recently It's been sliding, and it's due to my battery just being old. I've got a new one I'll be putting in tonight. Get Gsam Battery monitor and check out what's using the battery.

easiest way i have found to extend my battery during the day is to toggle my data..if i am not using it for a bit, just toggle it off, takes 2 sec to toggle it on, and can easily double my battery life..

I use Jedi mind trick with Tiberius kernel. It fly's and I get around 12-14hrs with 1hr and 30mins or so with Facebook 1hour and half of music and texting. So get it!
Sent from my T989 doing Jedi Mind Tricks

Do this stuff and read it carefully. And yes 3 to 4 hours is about average screen time. Makes no difference discussing total battery time. You can kill it 3 hours from a full charge with continuous use...or it can last 24 hours....all depends how often your using it and what you are doing with it.
If you go thru this other thread and follow all of the advice ....you should be fine.
http://forum.xda-developers.com/showthread.php?t=2461864
Sent from my SGH-T989 using xda app-developers app

Try this :thumbup:
http://www.amazon.com/gp/aw/d/B0083M5CIM/ref=mp_s_a_2?pi=SL75&qid=1348506195&sr=8-2
Sent from my SGH-T989 using Tapatalk 2

Areyoucrazy, 5-6 hours of on screen time or total? If that's all you get even with screen off, something is probably keeping your phone awake. Get an app called better battery stats or gsam battery monitor to figure out what is keeping it awake.
Sent from my SGH-I747M using xda app-developers app

These are my results, after buying the LAZA 3800mAh battery. I just had it for one day and it is light years ahead of the stock battery. I don't use NFC, and my brightness is all the way down. (Still I don't believe the brightness is low enough, seems too bright). I am a student so when I'm in class I can't obviously use my phone, so that is why the screen time is below what you guys expect. Still this battery is legit! I got it for $23 shipped (Amazon Prime). On the stock battery I had to revert back to ICS, but with this Laza battery I have no gripes on leaving it on the latest CM10.2 (4.3.1) and letting it go on Dual Carriage (DC, HSPA+42) mode. As long as I leave school with more than 70 percent battery like on my HTC Sensation, I am fine.
Sent from hopefully my last brain transplant using Tapatalk 4

I'm curious to see what screen time you get on a full charge.
Sent from my SGH-T989 using Tapatalk

DJ Scooby Doo said:
These are my results, after buying the LAZA 3800mAh battery. I just had it for one day and it is light years ahead of the stock battery. I don't use NFC, and my brightness is all the way down. (Still I don't believe the brightness is low enough, seems too bright). I am a student so when I'm in class I can't obviously use my phone, so that is why the screen time is below what you guys expect. Still this battery is legit! I got it for $23 shipped (Amazon Prime). On the stock battery I had to revert back to ICS, but with this Laza battery I have no gripes on leaving it on the latest CM10.2 (4.3.1) and letting it go on Dual Carriage (DC, HSPA+42) mode. As long as I leave school with more than 70 percent battery like on my HTC Sensation, I am fine.
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Click to expand...
Click to collapse
I get the same on stock battery
Sent from my T989 doing Jedi Mind Tricks

13~BigBear~13 said:
I get the same on stock battery
Sent from my T989 doing Jedi Mind Tricks
Click to expand...
Click to collapse
On Jedi or on CM10.2? I don't know if Stock lets you use Dual Carriage or not. (Probably does, doesn't show it).

gc84245 said:
Areyoucrazy, 5-6 hours of on screen time or total? If that's all you get even with screen off, something is probably keeping your phone awake. Get an app called better battery stats or gsam battery monitor to figure out what is keeping it awake.
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
It is the total battery hours. My screan time is barely 1 hour.

coltonbauman said:
I've been running CM 10 for awhile, and I've been getting great battery life. Recently It's been sliding, and it's due to my battery just being old. I've got a new one I'll be putting in tonight. Get Gsam Battery monitor and check out what's using the battery.
Click to expand...
Click to collapse
I do have GSAM battery monitor installed. I had it installed since it was called "bad ass battery monitor". It always is consistent and shows that screen uses most battery (abt 35% of overall usage), even at lowest setting. I also have a screen Filter app https://play.google.com/store/apps/details?id=com.haxor That overlays on the screen that dims it even further and is believed to save some more battery.
The other major user is the apps which is
- Android &
- Kernel

kj2112 said:
Do this stuff and read it carefully. And yes 3 to 4 hours is about average screen time. Makes no difference discussing total battery time. You can kill it 3 hours from a full charge with continuous use...or it can last 24 hours....all depends how often your using it and what you are doing with it.
If you go thru this other thread and follow all of the advice ....you should be fine.
http://forum.xda-developers.com/showthread.php?t=2461864
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
I will try the cpu spy again. I remember doing it before and it was almost inconclusive if there were things I could control vs system related drain that I couldnt control.
I am currently on a new OEM battery (2 months old) and several ROMs later,. Some ppl claim they get best battery life, I just want to mirror exact same ROM, kernel... even the apps they have and their refresh settings if I need to.

DJ Scooby Doo said:
On Jedi or on CM10.2? I don't know if Stock lets you use Dual Carriage or not. (Probably does, doesn't show it).
Click to expand...
Click to collapse
Jedi
Sent from my T989 doing Jedi Mind Tricks

Dude.....less than an hour screen time tells something is very wrong.
First...I would bet the screen dimmer app Burns more battery than it saves.....that'd be my guess.
Second....flash a fresh rom, or stock. Run it at least a few days as is. With only gsam and cpuspy installed. Nothing else. I know you may really miss some apps....but its the only way to see if its an app, or rom, or hardware.
Then off gps after your install. Its on by default and is a huge battery sucker.
I'll bet things will be greatly improved. Then install apps.....monitor closely for changes in gsam or cpuspy.
Your screen battery usage should be more like 60 percent or higher....even as dim as it goes. That's normal. Apps, maybe 30 percent and then the other stuff. A 35 percent battery drain from the screen says you have problems.
After all your apps are installed.....try everything in that link I posted. Everything. And things should stay good.
Keep us posted.
Sent from my SGH-T989 using Tapatalk

wow, and i thought mine was bad... i have my screen on alot and play 3d games, i guess im doing good. running slimbean.

I do believe that the battery life on this phone is not the greatest, a spare 5$ ebay battery in the wallet keeps me worry free
Sent from my SGH-T989 using xda app-developers app

Related

CM7 Battery life

Currently I have cm nightly 12 on my phone with incredikernel 2/27 and having a hard time finding this amaging battery life everyone is talking about.
I have screen brightness down and disable autosync using the power control widget. I have one widget, five icons and one screen. I have smartass governor on with 128/998 settings.
I also am using an extended life China battery. It had decent life with stock sense rom + incredikernel but still was not great.
Is it the battery? Is it my settings? Am I doing something wrong? Any help would be appreciated.
Thanks!
Sent from my ADR6300 using XDA App
The batteries im using are 3500mah batteries i bought from ebay. I've been charging them occasionally in a wall charger.
Sent from my ADR6300 using XDA App
My guess is that it is your battery. The OEM 1300mah battery that came with the INC is probably better than that crappy no-name brand. I have the stock, used incredikernel and i was able to get almost 2 full days out of it with CM7.
EDIT: saw you have the 3500mah, most likely that is only about 75% of what is advertised. So its probably about 2700mah. How much do you use the phone throughout the day?
Not much... Thru the week it stays in my pocket with screen off.
On the weekends I check dealnews and might get in a few minutes of angry birds... But its nowhere near the claims made of 20-40 hours of moderate use.
Feels like its jumping 3% with every web page.
Sent from my ADR6300 using XDA App
I took it off the charger 5 minutes ago, down to 95% and battery usage states 72% is due to the display.
Went in there and turned off animations to see if that helps.
I also found out with clock work install awhile ago, I have an slcd screen. Im assuming they get worse battery life than amoled?
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No change .... now down to 90% and screen has been off.
Sent from my ADR6300 using XDA App
It may just be that battery is really horrible. Do you still have your stock battery. Try using that and see the life you get out of it. I just have a feeling, no reason why, but that battery you got is a real dud.
And yes the SLCD screens do use up more power than the AMOLED screens. I don't know if it's that much, I doubt it, maybe try with the stock CM7 kernel and see what kind of life you get?
Bump charging, even if it's only for 20 minutes while you shower and shave and eat breakfast, will really help your battery life all day. I find that if I don't do it I see my battery losing its charge much faster even after it loses its initial 5-10%
Back on my stock battery... turned off or uninstalled everything I can.
I usually leave it on the charger all night while I sleep...
Thinking about returning to stock to see if that helps battery.
Sent from my ADR6300 using XDA App
What are your GPS settings? Is network location on? What about wifi is it on? If so what's your sleep policy set to. Both of these settings made my batterty drop like a brick on cm7. Another note have you used spare parts to see what is consuming your battery. Is it partial wake locks or a specific app.
Sent from my ADR6300 using XDA App
GPS off
Wifi on when I use it. I've got power control widget on my home screen. Network location is off. Wifi sleep policy is default choice (off when screen off), however I don't typically leave it on.
Haven't been in spare parts but have made it to a usage graph I didn't fully understand.
The usage I see says its all the screen. 72% display.
According to spare parts usage... over last 11m wifi has most battery usage.
Only one app with partial wake and that's craigslist Notifier. Lower than android system however.
Sent from my ADR6300 using XDA App
Went back to stock cm7 kernel to see if ondemand governor is any better battery wise.
I'm still seeking this 20 hr's moderate use I keep hearing about.
Incredikernel seems to use more battery in wifi... stock is much lower.
Of course I don't know if this is fact with all the other variables.
I don't think I'm being greedy... just trying to find a setup which will afford me using my phone everyonce in awhile without living on a charger.
Sent from my ADR6300 using XDA App
!The display should be around that amount depending on how long its been running. I'm at 74% display and that with 2hr 42m of display on. It consumes the most amount of power of anything on the phone.
I've read a couple threads that cm7 has issues with the wifi sleep options and that it needs to be set to never for best battery life. At first thought it doesn't seem right be it helped me out.
In spare parts under usage stats anything jump out at you as being excessive. I doubt it but it'll let you know if an app is running to much.
Also look at the graph under setting battery if you a seeing a bunch of activity when the display is off then it could just be a lot of emails or something is syncing that we don't know about yet. If the display off and awake lines are close then you've done everything you can to Max out your battery.
At this point I suggest you try to bump charge the phone and then wipe the battery stats from cwm I was having an issue at first with cm7 n12 of my phone only charging to 94%. Maybe you are having a similar issue.
Just for comparison today was a mild day of usuage for me on the stock battery my phone has been on for 11h36m and as I said earlier a little under 3 hours of screen time. My display is around 35% brightness and I have 30% battery left. Also on a side note I'm using the incredikernel 128min and I'm under clocked to 800mhz.
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with kernel 2.6.37.2 cyanogenmod+slayer it last me 24 with moderate phone use

When did your battery life start to get better?

I have had the phone for 5 days and with fairly light usage, I am still not getting good battery life. I turn off all data and wifi when not using it and screen on time is below 2 hours.
Below is a screenshot of my battery life.
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It doesn't get better...get used to it until its fixed in an update , along with the other big issues.
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By about the 3rd day it seemed better. But it's also difficult to gauge because the first few days you're bound to toy with it constantly.
Until there is an empirical way to gauge usage, like an amp meter attached to the phone - it's all perception imo.
GalaxynexusVZW said:
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Click to expand...
Click to collapse
In the top left you have three things running in the background, im assuming constantly. Uninstall them, especially the battery percentage since you can look that up easily on your phone
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GalaxynexusVZW said:
I have had the phone for 5 days and with fairly light usage, I am still not getting good battery life. I turn off all data and wifi when not using it and screen on time is below 2 hours.
Below is a screenshot of my battery life.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Do yourself a favor and try aokp milestone 1 from rootzwiki , and also download lean kernel 1.1.1 on xda. Use interactiveX governor for kernel. This is the exact setup I am using now, and have been for a few days and have been getting insane battery life. Hope everything works for you.
Sent from my Galaxy Nexus using XDA App
Last time I checked lithium ion batteries don't get better after a few days and yes there are software fixes for battery life and bugs..
Sent from my Galaxy Nexus using xda premium
Reality. And a week. And getting a gsm version might help
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cvbcbcmv said:
You really have no idea what you're talking about. First of all, it will get better, I won't bother explaining the science behind it considering you can do your own research, but it will, also, it can't be "fixed." Just like they can't make it an 8 mega pixel camera in an OTA. You can get it much better by doing custom roms and thigns of that nature.
Click to expand...
Click to collapse
Oh stupid me and here I was hoping for a 15 mp camera
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It got better when I turned off vzw backup and google +.
Best I got is 16 hours bone stock just an extended battery. Worst I got was 4 hours(screen was on the whole time) watched 2 movies before I plugged in. I average around 12 hours from 100% to 20%.
Sent from my Galaxy Nexus using Tapatalk
GalaxynexusVZW said:
I have had the phone for 5 days and with fairly light usage, I am still not getting good battery life. I turn off all data and wifi when not using it and screen on time is below 2 hours.
Below is a screenshot of my battery life.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
First off, it's hard to tell by your screenshot how good or bad your battery life is. You're burning approximately 10%/hr, but maybe you had your screen on or were surfing the internet for a portion of that time. Anything that involves data transfer will kill your battery faster.
I got my Galaxy Nexus on Wednesday, and I've had great battery from the start. I calibrated it by letting the phone's initial charge die down to zero, and then charged it all the way up to 100%, and then used the Battery Calibration tool. I drain between 2-3% hour with light use, but can obviously drain much more depending on what I'm using the phone for.
That being said, for those on this board who think an OS upgrade is going to fix the problem, I highly doubt it. I have a reasonably poor cell signal (averages around -95 dbm), but still get solid battery life. Given that we were all issued phones with the same software, if you're experiencing incredibly bad battery life, I'm going to point my finger at the hardware. It just doesn't make sense that some of us with 4.0.2 get great battery life, and others do not. You probably have either a bad battery or a bad phone. Now, I'll probably get called out for saying this, but watch all the posts that follow when the update releases, when people still have poor battery life.
This is my 3rd Android phone (Incredible, Charge, GN), and every one of these phones has had poor battery life. On average, if I'm playing around with the screen on, I'm draining upwards of 10%/hr, if not more. But if you properly calibrate the battery - which is VERY important - you should easily be able to get a full day's charge out of your phone.
There is a post on XDA about the 13 steps to proper battery calibration. Once I followed it on my last phone, my battery life went up at least 50%. You have to let the battery drain to 100%, then bump charge a number of times, then use the battery calibrator.
GalaxynexusVZW said:
I have had the phone for 5 days and with fairly light usage, I am still not getting good battery life. I turn off all data and wifi when not using it and screen on time is below 2 hours.
Click to expand...
Click to collapse
Try running without JuiceDefender. Constantly toggling data on and off (or wifi on and off) actually hurts battery in almost all cases.
martonikaj said:
Try running without JuiceDefender. Constantly toggling data on and off (or wifi on and off) actually hurts battery in almost all cases.
Click to expand...
Click to collapse
Your results may vary, but when I used Juice Defender or Green Power on my Droid Charge, I nearly doubled the battery life. I haven't put it on my GN yet because my battery life is much better than what I had with the Charge.
No using JD or anything like that. Just the the phone do its thing. I don't even open the multitask button unless I want to switch between apps.
Sent from my Galaxy Nexus using Tapatalk
Gotta be a software issue with the battery.
Just this past weekend in Wash DC. Very strong 4 G market.
I had it fully charged off charger. After 7 hours without touching the phone even with google plus sign out, the battery went from 100% to 54%. It's like the phone was active a lot without me even touching it. No SMS/mms either. No emails either.
Know. I did same thing and put it on airplane mode with it 100% charged. After 7 hours on airplane mode it was at 98%.
So it's gotta be an operating system issue.
I tried it on wifi instead of 4G mode. And battery drainage was down to 72% after no use overnight.

Limit the Note 2 from 1.6Ghz to 1.1Ghz with build in feature to save battery

I know most of you already notice this but if you don't:
In Setting/ Power saving mode, check the "CPU power saving" then your phone will be limit to 1.1GHz max from 1.6Ghz.
I would suggest to tick on the "Screen power saving", "background color" and "turn off haptic feedback" to save some extra juice.
LTE on. 24h unplugged. 75% screen brightness. Full heavy haptic feedback. Heavy gaming and Internet use. Phone calls. Texting. 3D live wallpaper. Still 7h screen on time before the phone finally had to be plugged in.
I don't know what you use your phone for but I'm going crazy on mine and can't kill the battery. If you need more juice, then more power to ya. I can't fathom why.
Sent from my SAMSUNG-SGH-I317 using xda premium
LOL I tried to kill mine but it out lasted me I woke up at 5 for work and by end of the day I went on a 2 hour gaming session to try and completely drain it and got it to 9% but it was like 10 and had work next day so gave up. I lost
I'm still suffering from battery OCD after coming from the iphone 4S. Now I feel like plugging in my note 2 whenever I'm at my desk at work.... So you guys don't think I need to?
I dont touch my charger till I hit the bed.
Sent from my SGH-I317M using xda app-developers app
UCLAKoolman said:
I'm still suffering from battery OCD after coming from the iphone 4S. Now I feel like plugging in my note 2 whenever I'm at my desk at work.... So you guys don't think I need to?
Click to expand...
Click to collapse
Try a day without charging your phone at your desk. Yesterday I pulled in about 7 hours of on-screen time. That's with LTE and anything else internet intensive you could imagine. The only way you'll overcome that worry you have is to test it out yourself. I'm sure you won't be disappointed.
Sent from my SAMSUNG-SGH-I317 using xda premium
I run mine full cycle every time to 1% left then charge. Best way to maximize battery life
Err0xx said:
LTE on. 24h unplugged. 75% screen brightness. Full heavy haptic feedback. Heavy gaming and Internet use. Phone calls. Texting. 3D live wallpaper. Still 7h screen on time before the phone finally had to be plugged in.
I don't know what you use your phone for but I'm going crazy on mine and can't kill the battery. If you need more juice, then more power to ya. I can't fathom why.
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
I'm with you. I came from the Skyrocket and it was a struggle to get through a full weekday on LTE. In the past week with the Note 2 I don't even have to think about charging it when I'm awake during the day. It's very liberating!
Suzook1 said:
I run mine full cycle every time to 1% left then charge. Best way to maximize battery life
Click to expand...
Click to collapse
I would understand this philosophy if the Note 2 didn't have an easily replaceable battery, but in a years time you could replace a poor battery for cheap. Just recently the stand with extra battery and charger was $30 on the Samsung site (it may still be that price)
I think its my ocd from my note 1. Always seeking the longest battery life possible
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Jrockttu said:
I'm with you. I came from the Skyrocket and it was a struggle to get through a full weekday on LTE. In the past week with the Note 2 I don't even have to think about charging it when I'm awake during the day. It's very liberating!
Click to expand...
Click to collapse
I came from worse. I had an HTC Raider (Vivid) and that battery was horrid. Stupid HTC putting a 1620mah battery in a phone with LTE and a 4.5" screen
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Err0xx said:
LTE on. 24h unplugged. 75% screen brightness. Full heavy haptic feedback. Heavy gaming and Internet use. Phone calls. Texting. 3D live wallpaper. Still 7h screen on time before the phone finally had to be plugged in.
I don't know what you use your phone for but I'm going crazy on mine and can't kill the battery. If you need more juice, then more power to ya. I can't fathom why.
Sent from my SAMSUNG-SGH-I317 using xda premium
Click to expand...
Click to collapse
Damn, I wish I could get run times like that. I usually get HSPA signal and after 16 hrs I'm dead with 4-5 hrs of screen on time. I mostly text and do web browsing. Maybe an hour of music with wifi on all the time and auto brightness. Still lasts longer than my SGS3 did.
My first charge is 7 hours screen time for 24 hours unplugged. Now it's going down hill to 4-4:30 hours after i rooted and remove bloats. Installed couple MoDs.. Dammed i wish i can go back to 7 hours screen time
sweetboy02125 said:
My first charge is 7 hours screen time for 24 hours unplugged. Now it's going down hill to 4-4:30 hours after i rooted and remove bloats. Installed couple MoDs.. Dammed i wish i can go back to 7 hours screen time
Click to expand...
Click to collapse
You do know to "remove bloat" all you had to do was go into the stock app manager in settings and disable anything you didn't want. That is actually a much better solution than "freezing" with TiBu or removing altogether. I'm not convinced root and mods are 100% stable yet. Most people reporting decreased battery life are those that have rooted or modded something. I'm still 100% stock with ATT stuff disabled and batt life is still 7+ hours.
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Err0xx said:
You do know to "remove bloat" all you had to do was go into the stock app manager in settings and disable anything you didn't want. That is actually a much better solution than "freezing" with TiBu or removing altogether. I'm not convinced root and mods are 100% stable yet. Most people reporting decreased battery life are those that have rooted or modded something. I'm still 100% stock with ATT stuff disabled and batt life is still 7+ hours.
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Click to expand...
Click to collapse
Even bare stock I wasn't getting that much screen on time. So far I've only rooted and changed the kernel. Though today my battery life is starting off good. Yesterday I ticked the power saving option for the screen. I'll post an update tomorrow.
Today I was on for 5.5 hours, screen time of 2.2 and was at 54% with Power Saving On
So I went to bell and grabbed another battery
Time will tell if that helps
I could never reach 5 hours of screen time but could have the phone on for 30+ hours
I cant wait till we get more developer support, I used Francos Kernel with my galaxy nexus and it improved battery by 30 % and made my 8 hours overnight use only 2% battery. I was using 12-17% overnight with my note 2 asleep. Aside from kernels and roms I use this phone exactly the same as I did my Nexus. wifi off, bt off, gps on, push email on, auto brightness
UCLAKoolman said:
I'm still suffering from battery OCD after coming from the iphone 4S. Now I feel like plugging in my note 2 whenever I'm at my desk at work.... So you guys don't think I need to?
Click to expand...
Click to collapse
Lithium Ion batteries actually do better if you don't charge it constantly. In other words let it run down a bit before charging. You don't want to always keep "topping it off". But in general these batteries are much more resilient than others.
Just do some research. There's lots of info out there.
Suzook1 said:
I run mine full cycle every time to 1% left then charge. Best way to maximize battery life
Click to expand...
Click to collapse
Umm, no, it does not. You are stressing the battery out. Unless needed, dont keep the battery below 20%. Its healthier to charge the phone sporatically throughout the day.
These aren't nickel batteries...they dont need to be trained or "cycled"
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
I'm a battery test engineer so I have played around with Li-ion batts.
If you can keep the phone at cool temperature and charge at 40% and stop at 80% then keep doing 40-80, your battery will last double long
★♡★ AT&T Galaxy Note II ★♡★
erick161 said:
Umm, no, it does not. You are stressing the battery out. Unless needed, dont keep the battery below 20%. Its healthier to charge the phone sporatically throughout the day.
These aren't nickel batteries...they dont need to be trained or "cycled"
Sent from my SAMSUNG-SGH-I317 using xda app-developers app
Click to expand...
Click to collapse
Agreed. Full discharges are not necessary for lithium ion batteries. Full discharges were needed for NiCad or NiMH batteries as they suffered from memory effect. LithIon doesn't suffer from this. With that said, a lot of experts do suggest discharging a LithIon periodically, maybe once a month or every other month.

FK23 rapid battery drain

First off I want to say I'm not a noob when it comes to flashing. I usually get 14-18 hours on a full charge with 3-4 hours screen time which seems to be the norm on e4gt roms. I haven't reinstalled any apps since flashing the FK23 stock leak and now a few days into the room settling I have almost 4 hours on a full charge and down to 9 percent left with almost 2 hours screen time. I have checked to see if my battery is swollen and it's not. The battery stops spinning immediately after I let go of it. Screen shots are attached and any insight would definitely be appreciated. I may have to go back to blu kuban since that's been giving me equivalent if not better batter life compared to FK23 stock
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Update lost 7 percent in 20 minutes on lowest brightness level
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kbrann85 said:
Update lost 7 percent in 20 minutes on lowest brightness level
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Click to collapse
Did you use One click odin to flash this?
Try removing unneeded stock apps
No this is from the tar file flashed in Odin 1.85 I believe... Had no issues for a few days now it's going crazy...I didn't even restore my internal and external sd backups yet as I wanted to test a clean install first
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I'm having rapid battery drain, too. I used the one-click no-data. I want to wipe everything and start over. Can I simply download and OC the data, or do I need to do something else, first?
As far as I know (devs correct me if I'm wrong) you can just use the OC restore that doesn't say no data... But I went the extra step and copied my entire internal and external to my pc for safe measures and so I could pick and choose what I wanted back on my phone. Then I cleared my internal and external sd before I even one clicked so it was already clean... I just wanted to make 100 percent sure everything was clean but that's just me
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Im not having any issues. Let your phone go dead tonight and charge it completely to 100% while off. Do not interrupt it until complete. Since I started doing this on flashed roms I have been getting better battery performance.
This is Dan's rooted deodexed zip...
Sent from my SPH-D710 using xda app-developers app
byrdcfmma said:
Im not having any issues. Let your phone go dead tonight and charge it completely to 100% while off. Do not interrupt it until complete. Since I started doing this on flashed roms I have been getting better battery performance.
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Click to collapse
I just did this while taking a nap and this is what I have so far after 100 percent charge and I restarted once to pull battery and look at it
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kbrann85 said:
I just did this while taking a nap and this is what I have so far after 100 percent charge and I restarted once to pull battery and look at it
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Click to collapse
Was it completely dead when you put it on charge? I don't know why this works for me, but every Rom I have ever flashed, unless something is wrong with it, gives me better battery life 3-5 days after I flash it. Some of the old-timers say a Rom has to settle for a few days, so maybe it helps do that quicker. If all else fails, reflash the Rom.
kbrann85 said:
I just did this while taking a nap and this is what I have so far after 100 percent charge and I restarted once to pull battery and look at it
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Click to collapse
I gotta say that your drain seems pretty extreme! I myself am having slightly accelerated battery drain but its better than what I had on ICS. My best recommendation would be to use an app like ROM Toolbox or Titanium Backup to freeze apps and background processes you don't need. If that doesn't help you may need to look at other options.
rwilco12 said:
I gotta say that your drain seems pretty extreme! I myself am having slightly accelerated battery drain but its better than what I had on ICS. My best recommendation would be to use an app like ROM Toolbox or Titanium Backup to freeze apps and background processes you don't need. If that doesn't help you may need to look at other options.
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^Thanked
I'm going to try installing GSAM and checking out what's going on in the background but as far as I can see nothing out of the ordinary is going on with the processes. On a side note when I took a look at my battery itself the sticker has pink X's on it. Not so sure if it's water damage per say but it may be condensation/humidity since I live in Florida. Looking into getting an extended battery as a replacement and any suggestions on the cheapest but most reliable battery to purchase would be helpful and I don't really mind if I have to have a larger back door on my phone. The cheapest I've found is a Trexcell with the back door for $16.99 free shipping. If anyone knows of anything better/cheaper please point me in the right direction.
Another issue I've been having is wifi will connect and reconnect uncontrollably whenever it feels like it, and the sprint connection optimizer was disabled since I Odin'd.
kbrann85 said:
^Thanked
I'm going to try installing GSAM and checking out what's going on in the background but as far as I can see nothing out of the ordinary is going on with the processes. On a side note when I took a look at my battery itself the sticker has pink X's on it. Not so sure if it's water damage per say but it may be condensation/humidity since I live in Florida. Looking into getting an extended battery as a replacement and any suggestions on the cheapest but most reliable battery to purchase would be helpful and I don't really mind if I have to have a larger back door on my phone. The cheapest I've found is a Trexcell with the back door for $16.99 free shipping. If anyone knows of anything better/cheaper please point me in the right direction.
Another issue I've been having is wifi will connect and reconnect uncontrollably whenever it feels like it, and the sprint connection optimizer was disabled since I Odin'd.
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Click to collapse
Ya GSAM is a must have. I run it on every one of my devices. I was also getting some irregular battery drain. Then I looked at what apps where keeping my device awake the most and found that hotmail app had a 4 hour wake lock! Ouch! I uninstalled that and setup the default email client to check my hotmail hoping this will resolve my issue. But I can tell you right now nothing else is keeping my device awake that long so in theory this should solve my issue. You may want to go through this same exercise. After a couple of hours of running GSAM looking at which apps are using the most power. Then switch your view to "Time help awake" and see if something has a wake lock holding your device awake.
Good luck
I re-read garwynn's instructions for the one-click and realize that I made a mistake going from ICS (Lightweight) to FK23 without a full wipe. I thought I was paying closer attention when flashing, but I screwed up. Thankfully, this should be easily fixable. I'm running the one-click restore and am optimistic things will be better.
cas8180 said:
Ya GSAM is a must have. I run it on every one of my devices. I was also getting some irregular battery drain. Then I looked at what apps where keeping my device awake the most and found that hotmail app had a 4 hour wake lock! Ouch! I uninstalled that and setup the default email client to check my hotmail hoping this will resolve my issue. But I can tell you right now nothing else is keeping my device awake that long so in theory this should solve my issue. You may want to go through this same exercise. After a couple of hours of running GSAM looking at which apps are using the most power. Then switch your view to "Time help awake" and see if something has a wake lock holding your device awake.
Good luck
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Click to collapse
Well after installing gsam I was able to see that after going from 77% to 15% in just over 4 hours with 1 hour screen time I noticed that media server had 293 wakelocks with 1 hour of time held awake...might have found the culprit...will keep you guys updated as im sure it will help a few...just wanted to update that I switched to Universe JB to see if it was just that tar...apparently it wasn't seeing just as much battery drain
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And now I also figured out that the media server was not the only culprit. The battery seems to be the problem after numerous tests returning results that the battery was only a 1175 mah battery instead of what it should be 1800 mah. The battery does not spin so don't always judge by that test alone. After deciding to put my OG Epic 4G slider battery in and take it for a spin these are the results I have so far with 300 mah less (1500 total) here is the screen shots below from a full charge
*EDIT * I'm now running blu Kuban FI27 and tested also with the stock 1800mah battery still dies rapidly and WiFi still disconnects and reconnects randomly
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Averaging 10% loss every hour
I am experiencing roughly 8-12%, so averaging around 10% loss every hour with moderate to slightly heavy use. Right now after 5 hours & 10 minutes i am at 50%. I have Facebook & an Exchange email synced and was on a phone call for over an hour, have been texting a bit and using email, the internet & Facebook. I have removed Sprint ID, which seems to run in the background along with Sprint radio, Nascar, Yahoo Stocks & News, so that may be helping a little. Overall I think that the battery performance has improved for me.
I was experiencing some pretty bad drain but after letting the kernel settle for a few days and disabling the location services, I can easily make it through the day
My batter time stinks!
I'm also getting 9% per hour battery drain. I have a Tasker profile running which turns off DATA when the screen is off. Most of the day, my phone has not been in use and I'm still getting battery drain. BetterBatteryStats shows that a process called "surfaceflinger" (Android System) has used the most followed by "googlequicksearchbox" followed by Gmail. Partial Wakelocks report says "signalCollector.Scanner has a count of 4844 and "LocationRecieverService" has a count of 3411 with "LocationReportingService" having a count of 5625. However, all of these combined only add up to 2% so I'm confused as to what is burning my battery.
nspeer said:
I'm also getting 9% per hour battery drain. I have a Tasker profile running which turns off DATA when the screen is off. Most of the day, my phone has not been in use and I'm still getting battery drain. BetterBatteryStats shows that a process called "surfaceflinger" (Android System) has used the most followed by "googlequicksearchbox" followed by Gmail. Partial Wakelocks report says "signalCollector.Scanner has a count of 4844 and "LocationRecieverService" has a count of 3411 with "LocationReportingService" having a count of 5625. However, all of these combined only add up to 2% so I'm confused as to what is burning my battery.
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Have u checked to make sure your battery isn't going bad? Take it out and try spinning it on a table on both sides if it spins like a top its starting to bulge, bulging battery = bad battery
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Just did spin test as suggested. The battery did indeed spin like a top on both sides. Just ordered a replacement. Has anyone tried one of the "Gold" 2430mAh batteries made in Japan and being sold on Ebay from China?

Hey guys, how's my battery life?

im posting a day's usage for GS3 Tmo
can you guys tell me if the battery life is normal, bad, good?
(im posting the batt. life and top 5 usages)
the next 2 apps
What rom ?
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bikrame said:
What rom ?
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completely stock, tmo bloat disabled, screen @ lowest brightness, sync off
With 27% left, I'd say that's about average-good.
Dear God, I get about 8 hours with average usage. Seems very good life to me. Do you have power saver and/or sync enabled?
It's exactly like mine. However, some users actually got theirs up to 5 hours screen time. How? I'll never know
Battery life good bro, cool story
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Mine's absolutely horrid, I can't for the life of me figure out what the hell's wrong with it. I'll run out of battery after about 12 hours, with the screen time at 1 hour and maybe 30 minutes if I'm lucky? The phone drinks away my battery in standby mode like a former alcoholic united with an opened beer. When I was on ICS, turning off 4G every time the screen was off with the AutomateIt app would give me excellent battery life. Ever since Jelly Bean, it doesn't seem to make a difference. I just don't even bother using AutomateIt anymore, I even uninstalled it. Useless. I check marked the option, "Restrict Background Data," but I actually had worse results with that on even. Following the thread about the Guide to good battery life, I turned off auto-sync. The only thing that seems to do for me is not get my emails in real time. No effect on the battery though. I'm guessing the battery drain has something to do with being on data (even though turning it off doesn't seem to do much) because everytime I go to school where there's little WiFi, battery's worse. Also, somehow my Messaging app takes up more battery than the screen. What's with that? I'll text every now and then, but it shouldn't eat away my battery like a fat man with the last batch of Twinkies. Enough with the dumb similes, haha, but I actually need help with this. I really don't wanna buy a battery off eBay cause the damn people are too lazy to send you the battery until a month passes, and I hate charging in the middle of the day.
I'm on 100% stock. I used to root and mess around with a ton of ROMs, but then I realized all my favourite ROMs were the ones closest to stock...
.... look at the eBay expected arrival and/or look for a seller in the USA ?
Anyway, that bit aside - have you installed something like BetterBatteryStats to be able to see what the problem is so you can fix it ?
kulzboy said:
It's exactly like mine. However, some users actually got theirs up to 5 hours screen time. How? I'll never know
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Click to collapse
5 hours... how !?
Easy !
I'm on stock and if I'm almost all the day on WIFI, not playing too much games, and with auto-brightness,
I can get 5 to 6 hours screen time.
(but on 4G all the day, it's more around 3 hours screen time)
This is what most people get with normal use around 14 to 16 hours and 4 to 5 hours screen time. I think the biggest issue is that 4G radio that most people have on all the time. I I have wifi everywhere so most of the time I have mine off that helps a ton. Plus all the sync stuff off, I get about 6 hours over 17 hours battery life and about 30 to 40% brightness.
Sent from my SGH-T999 using xda app-developers app
14-16 is what was normal for me when I first got my GS3 (after JB update). If you want more battery life, I recommend trying juice defender (custom settings for data off while locked). If you have stretches where you don't use your phone it works really well. Just thought I would throw that out there.
Sent from my SGH-T999 using xda app-developers app

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