Develop Bugs

Very poor battery life?

Hey guys. I've been noticing a while that a lot of people on the forums get 12+ hours even on heavy web browsing, calling, apps, and texting. I usually can't get through a day of usage (probably 12 hours?) with my phone, and I carry 2 extra batteries with me. I calibrated my battery using the battery calibration app here on XDA and my screen is set on auto. I'm on Syndicate v. 1.1.1 and I use the stock battery.
It will usually last me 3-4 hours of 'heavy' usage (calls, games, texts) and maybe 5-7 hours of 'moderate' usage (when I'm at school, some texting, barely any internet usage, and a few calls)
Are there things that can 'harm' a battery? Some people say it's bad to charge a phone and use it at the same time, but I call people while its plugged in multiple times every day (probably a couple hours worth a day). Does that deteriorate the battery?
I'll post a screenshot of my battery usage tomorrow if that helps.
(note- I am a calling freak. So far I'm about 3/5 in my billing period and I've used 10,580 minutes. )

The charging and using not so much but letting it repeatedly drop low and get hot kills it
Sent from my Nexus S 4G using XDA Premium App

gtuansdiamm said:
The charging and using not so much but letting it repeatedly drop low and get hot kills it
Sent from my Nexus S 4G using XDA Premium App
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Click to collapse
Hmm. There are probably a few instances where I done that

brianhuangbh said:
Hey guys. I've been noticing a while that a lot of people on the forums get 12+ hours even on heavy web browsing, calling, apps, and texting. I usually can't get through a day of usage (probably 12 hours?) with my phone, and I carry 2 extra batteries with me. I calibrated my battery using the battery calibration app here on XDA and my screen is set on auto. I'm on Syndicate v. 1.1.1 and I use the stock battery.
It will usually last me 3-4 hours of 'heavy' usage (calls, games, texts) and maybe 5-7 hours of 'moderate' usage (when I'm at school, some texting, barely any internet usage, and a few calls)
Are there things that can 'harm' a battery? Some people say it's bad to charge a phone and use it at the same time, but I call people while its plugged in multiple times every day (probably a couple hours worth a day). Does that deteriorate the battery?
I'll post a screenshot of my battery usage tomorrow if that helps.
(note- I am a calling freak. So far I'm about 3/5 in my billing period and I've used 10,580 minutes. )
Click to expand...
Click to collapse
the one thing i would do to extend your battery life would probably be to take the screen setting off of auto and manually set it to the lowest brightness you can tolerate.
are you using the twilight zone 1.1.1 kernel? try using the genocide 1.0 seems to give me better mileage imho

I have noticed this even with my extended battery. I am actually going back to 1.1.0 with Vision kernel to test.

Phone calls kill this batter no matter what. Our specs for talk time is 4-6 hours I don't remember

So 3-4 hours on heavy usage is normal if I'm doing excessive calling?

Some days I have a 5 hour battery, some days I have a 20 hour battery - all depends on how I use the phone.
On the short days I use it a lot, I'm throwing attachments around in Gmail, files around in Dropbox, using 4G, and using my phone outdoors - read brightness up.
On the long days I'm using Juice Defender and Screen Filter - read brightness down - I'm mainly texting and powering the screen off asap, and getting in the occasional fb/tw check, and I'm hanging out in areas with stronger Sprint service.
My advice for elongating your battery - use Juice Defender and customise which the data controls by app. Use Screen Filter at about 60% and manual display brightness. Slide your finger left and right along the window shade to keep the brightness down. With the SAMOLED the more dark colours on the screen the longer the battery will last, so always pick dark themes on apps. If you're going to be in a low service area for a while toggle data off if it's an option.
Lastly, I picked a Zagg Sparq for this phone. I charge the Sparq in once or twice a week and then I plug my phone into it on the go on those days when I have trouble. Use the General port instead of the Optimized one. I played the multiple battery game with my G1..I prefer carrying around a juice box.

Have tried any of the "tricks" posted by Randomking?
http://forum.xda-developers.com/showthread.php?t=1106524
They seem to help me out a little.

What kind of battery life are you guys seeing with constant usage

I know using the phone constantly drains the battery alot faster but I think mine is abnormally fast.. right now I'm at 4 hrs and 25 mins and I have about. 15 % battery left.. that seems kind of drastic. It shows my screen draining at 53%.. does that seem normal or is that bad..
Tapatalkin' it from my Epic Touch 3g

Stock or root? Stock thats waaaaaaay too fast. Rooted thats the issue I was having

Stock..
Tapatalkin' it from my Epic Touch 3g

Since I rarely take it off charger, pretty good.

I can go 15 hours and have 50% at the end of the day with like 2 hours or more of screen usage..
Sent from my SPH-D710 using XDA App

I Should also add that I have poor reception in my area and my airave isn't playing nice with my touch.. its a little under 5 hours and I'm at 10 % now. I've been one my phone pretty much that whole 5 hours listening to music for about 2 hrs straight. And checking tapatalk constantly.
Tapatalkin' it from my Epic Touch 3g

My first full charge lasted me about 13 hours with moderate to heavy usage and I still had about 40% left when i plugged it in. I was on WiFi for about 8 of those 13 hours but I also had 4G and Bluetooth turned on with my Jawbone connected.
Every day since then has been just a tad different but nothing too drastically different than that. This phone is awesome with battery compared to any other Android phone I have had.

jok3sta said:
I know using the phone constantly drains the battery alot faster but I think mine is abnormally fast.. right now I'm at 4 hrs and 25 mins and I have about. 15 % battery left.. that seems kind of drastic. It shows my screen draining at 53%.. does that seem normal or is that bad..
Tapatalkin' it from my Epic Touch 3g
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Click to collapse
I feel your pain. The other day my phone was dead in 6hrs with 2hs screen on time
Sent from my SPH-D710 using XDA App

20-30 hours

I've been trying to get people to rate their usage in percent per hour (%/hr) makes waaaay more sense.
For example, with data always on, wifi on and off through out the day, I'd say light to moderate usage- I'm pulling in 5-6%/hr. Which is pretty good for stock. My Evo pulled down about 8%/hr stock.
With CM7, and Tiamat or SavagedZen kernel on OnDemand with the Evo I averaged 2.2%/hr. Just waiting for the E4GT to get all up to speed in the mean time.

With 3.5 hours of constant data use yesterday, my phone was at 63%, so constant use all the way would be about 7-8 hours. I'm talking about surfing, pandora, in a crappy signal area pretty much all the time (I have ALOT of downtime at work). That puts my EVO to shame. It would be dead in 3.5 hours, lol

17.5 hours on time.
1hr 15 minutes screen on
70% battery left
I also use Data Switch to shut off my 3g connection when not in use so I typically have pretty decent battery life.

tenaciousj said:
17.5 hours on time.
1hr 15 minutes screen on
70% battery left
I also use Data Switch to shut off my 3g connection when not in use so I typically have pretty decent battery life.
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Click to collapse
Oh man, with data turned off my Evo would last Days. With data off I averaged bout 1.1%/hr.

You also have to take into account that the batteries need to be "broken in" by charging and discharging several cycles to be able to tap into the full capacity of the battery.

I have noticed that my battery gets sucked down if I am in a low signal area otherwise I get about 10 hours.
Sent from my SPH-D710 using xda premium

I'm not doing too bad this time around.. I'm at almost 7 hrs and I'm at 49% not great but not terrible either
Tapatalkin' it from my Epic Touch 3g

OP, the issue is network related. Your phone has no reception so it's either roaming or searching for signal. Unplug you Air rave if its not working with the phone because all that will do is make the problem worse. Use JuiceDefender to control your data networking and as far as cell reception goes (calls/texts) either use airplane mode or just leave it on and try it out. See if that helps you. Some users have been complaining of signal issues with the ET4G, you may want to try a Photon (I know this phone I'd far superior) but Motorola gets the best reception!
anyhow, goodluck and post your findings plz
Sent from my Sprint Samsung Galaxy S II Epic Touch 2G

cbpagent72 said:
I have noticed that my battery gets sucked down if I am in a low signal area otherwise I get about 10 hours.
Same here i thought it was only my device for a minute.
Sent from my SPH-D710 using xda premium
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Sent from my SPH-D710 using xda premium

17-20 hours of moderate use

I got to 33% after 6 hours, so it looks like 9 hours for me, listening to podcast while getting ready and listening to Pandora for 30 minutes during the commute over 4G. Then wifi the rest of the day at work, checking emails and making calls.
I tend to think that if not for Exchange Active Sync, I'd probably get more like 12-15 hours.

Battery over Christmas... 1d 21h

So, this christmas was probably as close to normal usage without a charger as possible. I didn't spend hours playing with the phone, nor plug it into a charger every 2 hours because I was always out. I did show a few people my 'brand new google phone' and play a couple of games to kill 5 mins here and there.
Phone calls were short, but there were many of them, and all my syncing was on. I'm going to post as much info and all the screenshots here so you get a complete picture.
Anything I missed let me know. My conclusion here is that this particular rom, or combination of settings really decrease power usage on standby. Of course the screen still sucks loads of power, but in this example almost 2 hours of screen use resulted in 46 hours of battery life. Its reasonable to assume that with these settings 3 or 4 hours would still manage 24 hours. What do you guys thing?
Rom - Modaco Ir8 with UV kernel
UV settings:
1200MHz:1150mV
920MHz:1050mV
700MHz:950mV
350MHz:850mV
Battery Summary:
Total Time on battery - 1d 21h 5m 49s (14% left)
Screen - 1h 46m 31s
Phone Idle - 1d 19h 19m 17s
Android OS - 1h 9m 4s (Keep Awake 2h 40m 25s)
Voice Calls - 1h 3m 5s
Mobile Standby - 1d 21h 4m 43s (Time without signal 0%)
Media Server - 8m 52s (Keep Awake 53m 31s)
Android System - 6m 37s (Keep awake 45m 26s)
Gmail - 7m 37s (Keep Awake 15m 15s)
Sentinal3 (a game) - 7m 18s
Syncing (Always on):
Gmail - 7 gmail accounts all set to auto sync. 2 syncing everything, the rest only email
Twitter - 1 twitter account
Facebook - 1 Facebook account
Widgets:
Facebook (standard fb app widget)
News and Weather (the android one)
Twitter (standard app) - 2 widgets one for mentions and one for messages
Word of the Day
Music Widget
Radio - i9250XXKK6

You beat me to it. My usages were almost the same. 1 Day 21Hrs and 46% left, little less screen time than you had.
My AOS usages have been down the past few days and I have no idea why, saving the most battery from that as well.

That's pretty much average battery life for any ROM/Kernel combination on the GSM (maguro) Nexus. Idle drain is absolutely fantastic on this device. If the phone is left idle, it barely loses 1% an hour. Looking at your stats, nearly all of the time spent off charger the phone was idle. Your screen on time of 1hr 46m isn't much. The real shock would have been to have seen that time off charger and around 4 hours of screen time!
Still, I think the LTE US users are gonna look at those stats with envy!!
Regards.

lynxboy said:
That's pretty much average battery life for any ROM/Kernel combination on the GSM (maguro) Nexus. Idle drain is absolutely fantastic on this device. If the phone is left idle, it barely loses 1% an hour. Looking at your stats, nearly all of the time spent off charger the phone was idle. Your screen on time of 1hr 46m isn't much. The real shock would have been to have seen that time off charger and around 4 hours of screen time!
Still, I think the LTE US users are gonna look at those stats with envy!!
Regards.
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Click to collapse
Idle is better than that for me. 1% every 2-3 hours. I goto bed and only lose 2-3%. A heavy night might be 4% lost. Lol. I need a stock kernel with just uv and oc'ed gpu so it will get better for me. I ran my battery down completely last night and was 22h/5h. 5 hours display. Booyah. I am running 4.0.2 stock and rooted with UGKL7 radio.
Sent from my Galaxy Nexus using xda premium

i got 3 days on my original handset during...normal ish use...was rather please with that, a day better than my N900 was

I was happy with my 1 day and 8 hours 34 minutes and 46 seconds. over the same time period. I would say I used the phone pretty heavily over that time frame so I am really happy with these results. My phone is stock yakju running on AT&T's network.
I was connected to wifi about 90% of the time. 2 gmail accounts, one twitter account and 1 G+ account syncing. I downloaded several apps on wifi and 1 on 3G as well as watched about 5 you tube videos. The screen was set to auto, and I used the phone outside at max brightness for about an hour during which I took about 20 pictures and shot 30 seconds of video at 720p. I also did a great deal of chatting on Google Talk, sent a few text messages and talked for about 20-30 minutes total.

thats my x-mas
Sent from my Galaxy Nexus using xda premium

HMMM.. Very interesting

I'm stock right now and am pretty sure I can go 30 hours with just regular usage (calls / texts/ facebook). At first the battery life was really ****ty but it seems to be getting better

WTF is wrong with Verizon and LTE? I can barely get 10-12hrs of light use.

Ur a cutie .....ya the phone that's terrible
Sent from my HTC-X710a using xda premium

Neo3D said:
WTF is wrong with Verizon and LTE? I can barely get 10-12hrs of light use.
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Click to collapse
I am at 10hours with 73% left. LTE is always on, auto brightness, no wifi, syncing 3email accounts. I am running the stock ROM with 4.0.3 radio files. I am getting killer battery times with this new radio leak. My screen on time is 1hr.
Sent from my Galaxy Nexus using Tapatalk

Neo3D said:
WTF is wrong with Verizon and LTE? I can barely get 10-12hrs of light use.
Click to expand...
Click to collapse
Did you try deleting your battery stats and re-calibrate it?
Sent from my Galaxy Nexus using xda premium

And yesterday bizarly 17h 47m, 6s and down to 13% with only 1h 35m screen type. I did use skype for a long type tho.
(GSM Version)

I haven't pulled the exact stats for my phone yet, but coming form my old HTC Incredible, this phone's battery life is outstanding. I can easily make it through a whole day without worrying about a charger, but my incredible has conditioned me to keeping one around all the time. I do have tasker set to disable somethings at night as well as an undervolted kernel.

LTE is gonna eat up your battery if you leave it on all the time. I only use it when downloading something and then I switch it off. No need to have twitter and Gmail syncing in the background with 4g.
Sent from my Galaxy Nexus using XDA App

I got aprox 44h with 4.5h of screen time stock 4.0.3 kk6 radio.

lol.
You guys are using the phone with Edge speeds. If I were to turn off LTE and use edge not touch the phone other than requirements (txt and calls) I will have the same results.

I have similar stats to the OP and I have the LTE version. I'll post screens and numbers later.
EDIT: Posted screenshots. Obviously fairly light usage over two days.

AMAZING battery life on gsm Gnex

This is from my first full charge cycle. Completely stock. Amazing! This is 3.5 hours screen on and 2 hours voice calls. It's not letting me upload those screen shots for some reason.
Sent from my Galaxy Nexus using XDA

thats pretty good!

Yeah mine has been pretty solid as well. Yesterday after 17hrs I was still at 35% which is better than most Android phones I've had.

I really think that galaxy nexus standby is amazing but the screen is the only thing that really drains the battery. So if you don't use it heavily, you should be fine. I use my nexus moderately and I still get through a day with about 40% left.
Sent from my Galaxy Nexus using XDA

Pretty good... i find voice calls and cell signal to be main battery drain cause on Sprint's turtle 3G network.
With 2100mah extended battery, 15% juice left unplugged at 8:30am, replugging in at 10pm, 2.5hr screen, 1hr gps, 30min voice

2nd full charge cycle
Here are the results from my 2nd full charge cycle:
40+ hours off charger; 4.5 hours screen-on time. Remarkably good.

How are you getting such good battery life? i can't seem to even last a whole work day, requiring me to charge before I leave the office.
I just got my replacement, so hopefully it will be better this time around.

CoronaDelux said:
How are you getting such good battery life? i can't seem to even last a whole work day, requiring me to charge before I leave the office.
I just got my replacement, so hopefully it will be better this time around.
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Click to collapse
I use 30-40% brightness. Black wallpaper. Other than that, nothing special. I only have 1 gmail account syncing, unlike some of the people on here that have 3 or 4 email accounts syncing. I also only have like 2-3 widgets running (beautiful widgets smaller home, audiomanager pro, astrid, and maybe one or two others). And most of the screen on time is doing relatively simple tasks like web browsing, reading xda, google talk, etc. Nothing too terribly intensive like video.
Based on my experience though it seems like pretty much anybody except the heaviest of users should be able to get at least a full day's use out of it, and lighter users should easily be able to get 2.
Is yours GSM? I hear the Vzw/Sprint ones get far worse battery life.

kyokeun1234 said:
I really think that galaxy nexus standby is amazing but the screen is the only thing that really drains the battery. So if you don't use it heavily, you should be fine. I use my nexus moderately and I still get through a day with about 40% left.
Sent from my Galaxy Nexus using XDA
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Click to collapse
I agree. I ended a day with ~70% battery left, and most of my usage was the screen (~30 minutes or something). I haven't had any issues with my battery dying on me yet. If I left the screen off all day, I could probably use 10-15%.

Nvm
Sent From My Sprint Galaxy Nexus via XDA Premium

chrikenn said:
I use 30-40% brightness. Black wallpaper. Other than that, nothing special. I only have 1 gmail account syncing, unlike some of the people on here that have 3 or 4 email accounts syncing. I also only have like 2-3 widgets running (beautiful widgets smaller home, audiomanager pro, astrid, and maybe one or two others). And most of the screen on time is doing relatively simple tasks like web browsing, reading xda, google talk, etc. Nothing too terribly intensive like video.
Based on my experience though it seems like pretty much anybody except the heaviest of users should be able to get at least a full day's use out of it, and lighter users should easily be able to get 2.
Is yours GSM? I hear the Vzw/Sprint ones get far worse battery life.
Click to expand...
Click to collapse
...your setup works on my GNex!
thanks
Sent from my Galaxy Nexus

I bet it's not LTE
CoronaDelux said:
How are you getting such good battery life? i can't seem to even last a whole work day, requiring me to charge before I leave the office.
I just got my replacement, so hopefully it will be better this time around.
Click to expand...
Click to collapse
I'm guessing it isn't using LTE. If I only connect by wifi and turn off data syncing then I can get more than a day too (with moderate use).
LTE really drains the battery.

alephnaut said:
I'm guessing it isn't using LTE. If I only connect by wifi and turn off data syncing then I can get more than a day too (with moderate use).
LTE really drains the battery.
Click to expand...
Click to collapse
Correct it is gsm, not lte.

That's impressive! Stock rom allows you to get at least 20 hours of WiFi/3G with 3-4 hrs of screen. Auto brightness. Here in Europe we don't have LTE, so our batteries could last a little bit more.

avarage battery use is over 13 hours (cm9+franco kernel).

10 hours and 53 min it dropped to 94% worth mentioning I didn't even touch the phone, can't seem to post a screen shot of it
Right now I am at 45% and I used it quiet heavily today
I didn't charge the phone even if it sems like it
Sent from my Samsung GNexus

Some of the best I've seen so far from my phone (about two weeks old) is posted here. Almost 36 hours of uptime! Wifi on the whole time, had a signal for most of it too, but guarantee there were some times that I didn't (because I was trying to use the phone then). This includes time spent playing some games as well. I've fired up Osmos HD, Everlands, Swords and Soldiers, and Draw Something at some point during that charge for at least a few iterations of play on each game. Decent amount of browsing, including hits from Google Shopper for some price comparisons. I'm syncing one Google account and one Exchange account, with black wallpaper, auto brightness (not tuned) and the calendar, news and weather, settings, and prepaid usage widgets. Stock ICS and unrooted.

i have ext battery and can run (what seems like) forever

[Q] Whats your battery life like?

I haven't seen a battery life thread for the AT&T S3, so I'll start one.
Mine is around 13 hours with moderate use. I listen to podcasts for an hour in the morning (commute to work), read Pulse News and Facebook for about an hour at lunch, and listen to another hour of podcasts for the commute back home. By the time I get home, I'm around 13% life. I usually get the battery warning while listening to my podcast. In comparison, my GNex GSM gets 17 hours with the same use pattern. When I get home, I'm usually around 37%. Besides Samsung's and AT&T's bloatware, same apps, no widgets.
All told, I am very disappointed with battery life. I don't believe in underclocking my CPU in or disabling haptic feedback. I use the "Power Saver" mode, but only use the reduced screen power consumption feature (reduces framerates and brightness). WFI is always off (I don't have WIFI at work). I also disabled all of the Motion features. I disabled S-Voice (it monitors for the Hi Galaxy, and disabling also allows for a very responsive Home button).
I calculated my idle battery drain (unplugged when fully charged and not touch it) at around 4.4% per hour. That only gives 22.7 hours of standby! My Galaxy Nexus GSM can go at least 2 days (sometimes I forget to charge it at night on the weekends - also not used the phone).
Is it AT&T's LTE? Is it the Gsiff_daemon process? Is it TouchWiz? Or is it just my phone?
What's your battery life like?

You pretty much hit it right on the head. I had the extended battery from Samsung on my Gnex and could easily get 20 hours with moderate usage.
This phone despite using CM10 or AOKP with the JB kernel I never see battery life that good. I'm in the 14-15 hour range with about 3 hours of screen on time. That's with wifi off, and we don't have LTE yet. All in all, it isn't very good.
Sent from my SAMSUNG-SGH-I747 using xda premium

I average 32-38 hours with sleep and all. Usually around 8+ screen on time.
Sent from my SGH-I747 using XDA Premium HD app

JayRolla said:
I average 32-38 hours with sleep and all. Usually around 8+ screen on time.
Sent from my SGH-I747 using XDA Premium HD app
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Click to collapse
Stock? What features do you have turned off? Do you use WIFI exclusively? Do you turn off your data network (LTE/HSPA)? Did you turn off Sync?
I don't use WIFI, and I leave my data on (as it should be - just like I had it on my GNex). I also leave sync on. I understand that using these decrease battery life, but come on... not like this. The GNex faired very well, and it had a smaller battery. Besides LTE and an S4 (and the S4 should be more power efficient), there isn't much different between the GNex and the S3.
If I turn on the screen for 8 hours, there won't be enough for sleep time! It'll just die... if it even makes it to 8 hours...

20+ hrs with multiple accounts syncing at 1 to 2hr intervals, screen on time of average 4hrs. Heavy use. Wifi on all the time.

stock, rooted, debloated, super-aggressive power management I was getting maybe 12 hours with 2 hours screen time.
I saw you didn't believe in underclocking, but I started using Cpu Editor http://forum.xda-developers.com/showthread.php?t=1798765 and am loving it, can do 16 hours and 4 hours of screen time with no problems, will do the trick for me.

JayRolla said:
I average 32-38 hours with sleep and all. Usually around 8+ screen on time.
Sent from my SGH-I747 using XDA Premium HD app
Click to expand...
Click to collapse
That's nearly impossible. What's your setup? Fricken hate it when people post battery life without explaining what their setup is.
Sent from my SAMSUNG-SGH-I747 using xda premium

My battery life with stock battery sucked too. Att signal sucks where I leave and waste 30% battery in that alone everyday. I got the Hyperion extended battery and loving it. Currently at 70% when usually I would be at 45-50%.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

JayRolla said:
I average 32-38 hours with sleep and all. Usually around 8+ screen on time.
Sent from my SGH-I747 using XDA Premium HD app
Click to expand...
Click to collapse
I hate to be "that guy" but I have a hard time believing anything close to this is even possible. Can you show us a pic of your battery stats?

Just use cpu tuner, It has profiles for each level of battery life so it gradually slows down your cpu's. You can get performance and bat' life.
Check it out

my battery drains a lot when i'm on wifi even when my screen isn't on. I get on average 14 hours running 1.4 GHz

You have a faulty radio.
I consistently get 40+ hours off charger with 4-5 hours screen on time with a couple hours of browsing, 3-4 hours of music, texts, an hour of calls or so, playing casual games for another hour.
Stock. No hacks. No root. Disabled all unnecessary carrier and samsung apps and disabled GPS unless i need it. Auto brightness, 2 hours sync for weathereye, flipboard and gmail syncing all the time. I do mostly use Wifi at home because my signal at home is bad and that quickly drains my battery. At work my phone idles for eight hours at a 2-3 % loss with 3G on (i use my old SIM, i do not have an LTE plan, I am on Rogers Wireless).

phonex1 said:
You have a faulty radio.
I consistently get 40+ hours off charger with 4-5 hours screen on time with a couple hours of browsing, 3-4 hours of music, texts, an hour of calls or so, playing casual games for another hour.
Stock. No hacks. No root. Disabled all unnecessary carrier and samsung apps and disabled GPS unless i need it. Auto brightness, 2 hours sync for weathereye, flipboard and gmail syncing all the time. I do mostly use Wifi at home because my signal at home is bad and that quickly drains my battery. At work my phone idles for eight hours at a 2-3 % loss with 3G on (i use my old SIM, i do not have an LTE plan, I am on Rogers Wireless).
Click to expand...
Click to collapse
You consistently (or have ever got) get 40+ hours off charger with 4 to 5 hours of screen time? Do you have your phone hooked up to a car battery?

I just factory reset (wiped data and cache) the phone and installed the apps I need (maybe something was badly configured or something) - did that yesterday night. Charged it up for this morning, and now I got 18 hours and still have 17% left. Screen on time says 1:38 hours.
This is on the same stock rooted and deodexed ROM. No hotboots either, so gsiff_daemon didn't rear it's ugly head.
Also no CPU Sleeper or any of these underclocking apps. I'm happy now, but wondering wtf was causing the problem... and will it happen again (after all, this is only day one).

I'm getting about 13 hours with 5 and a half hours of screen time. Underclocked to 1.2ghz and I have my own screen off profile. Great battery in my opinion
Sent from my SAMSUNG-SGH-I747 using xda premium

Phone finally died. Just over 19 hours. Heavy use towards the end because I was downloading and installing the rest of my apps from Google Play & Amazon App Store. Was also setting the apps up ( accounts, settings, and notifications...). Final screen on time was about 2 hours.

It's only been two days since I've had the phone, I've gotten about 14 hrs with roughly 3.5 hrs screen on time. I hate when I see people with 2 days off the charger and ridiculous screen on time. If you put the phone in airplane mode and ran just the screen you probably wouldn't last 10 hrs unless it was on low brightness. I had the Razor Maxx and I could get around 30 hrs usage with 4-5 hrs talk and 6 hrs screen on and that's the best battery life I've ever gotten on any phone with real usage.
I would like to get better stand by and more screen time out of this phone without getting an extended battery.

TheFiveDots said:
You consistently (or have ever got) get 40+ hours off charger with 4 to 5 hours of screen time? Do you have your phone hooked up to a car battery?
Click to expand...
Click to collapse
Nope. Stock battery. May be some of you have faulty batteries/radios/firmwares or run too much stuff at the same time.
jordant2 said:
It's only been two days since I've had the phone, I've gotten about 14 hrs with roughly 3.5 hrs screen on time. I hate when I see people with 2 days off the charger and ridiculous screen on time. If you put the phone in airplane mode and ran just the screen you probably wouldn't last 10 hrs unless it was on low brightness. I had the Razor Maxx and I could get around 30 hrs usage with 4-5 hrs talk and 6 hrs screen on and that's the best battery life I've ever gotten on any phone with real usage.
I would like to get better stand by and more screen time out of this phone without getting an extended battery.
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No airplane mode. Cellular connection is always on even during the night. Only difference is at home i have wifi on instead of data.
Flipboard, weathereye and an appsales app syncing every 4 hours. Auto sync for google account and facebook. Automatic brightness. Almost all samsung and Rogers apps disabled (except for myaccount and a couple samsung apps) and motion disabled since i have no use for the gestures apart from being a novelty the first week.
No root. No hacks. I am actually amazed. This is the first android phone that has battery life on par with my iPhone 4 and the unparalleled smoothness. My HTC One X lagged, this never does even with a few apps installed now including games. I look at my iPhone and think "why do i still keep it? It is no longer relevant".

Ive got my UV tweaked just right on my ktoonez kernel and keeping my screen level as low as can be and I'm now practically making it to TWO days battery life! Plug in every second afternoon or evening after moderate use. Occasionally it doesn't last as long. Quite happy now. Oh and that's with this baby cranked to 1.809Ghz! But obviously tweaked to use that under strain otherwise using lower clocks and deep sleeping with 384mhz.
Got a 4200mah extended battery on way and can't wait to see how much I can squeeze out of it too.
Sent from my SGH-I747M using xda premium

My GS3 i747m lasts around 50-55 hours per charge cycle..
It is running stock Rogers GS3 ICS, not rooted, all stock. Battery is stock as well.
Not using LTE, using HSPA+ ("4G") with data turned ON with Sync turned OFF
(**NOTE: sometimes, the battery is drained due to poor reception, and the phone will use more power for the cellular signal.. In my case, my 3G connection in my area seems alright for the most part, about 1 bar less from full)
Power saving is turned ON. WiFi powersave is turned ON.
Moderated WiFi usage in 2.4ghz 802.11g-mode only.
Every night when I go to sleep, my flight mode is turned ON. (I sleep around 9-10 hours everyday, so the phone stays on flight mode for 9-10 hours a day)
In the morning, I turn the flight mode OFF.
Bluetooth, GPS both are turned OFF
Screen brightness turned 1/4 brightness
LED notification turned OFF
Also, I have a task killer killing ALL BACKGROUND SERVICES every half hour.
Without killing all the background apps, my RAM usage is around 600-700 MB out of 1.6 GB of RAM
Killing all the background apps brings the RAM usage to around 360 MB of 1.6 GB
Without killing background apps, my battery life is shortened even when the phone is on standby.
Do this, and your battery life is pretty good..