Database Users

Battery Life Sucks! Android still way behind in this respect.

My last Android phone was the Desire. (The first one)
It's battery life left alot to be desired in all honesty.
Phone after that was an iPhone 4 which had a far better battery life. Onto pastures new after my iP4 got smashed, I picked up a Samsung Galaxy S II as a replacement.
Had it three days now and I am really not impressed with this things battery life. Unless your camped near a charger it just feels like such a pointless device. What's the point in having all these features if it's going to be dead by lunchtime? Really?
Got hardly any apps installed, have closed down social hub and everything inside it, no notifications or syncing apart from Gmail and contacts. (Whoopy doo!)
I took my phone off the charger around 2pm at 100%.
Now it's showing as 6h 48m usage (doesn't sound right)
Display 44% - 1h 47m use
Internet 13% - CPU total - 19m
Cell Standby 11%
Android System 9% - CPU Total 3m , CPU foreground 1m , Stay awake 4m
Android OS - 8% CPU total 11m
Voice calls - 3% - 2m
Battery now at 48%
So over 50% battery and I have got 19 mins of checking football scores and 2 minutes of calls.
This phone is not worth £500. Not in the slightest, just based on this. What good is a dual core powerhouse if it's going to be dead before you've had a chance to use it?
It's a serious issue that needs looking at, and no , it isn't the Android OS bug. That only accounts for 11 minutes of nearly 7 hrs of being on.
I use to charge my iPhone 4 up about once every 3-4 days, it never seemed to ever die or drain this quickly. You put the phone on the side and goto bed, usually lose about 1% of battery for the entire night.
This just isn't good enough for the price being paid.

From what i've seen here at XDA is that every phone (even the same model) performs differently. My SGS II can sit on my nightstand all night (7-8hrs) and only lose 3-4% battery. I can go through my entire work day of 8hrs with email sync on, sending text, making calls, checking XDA and Twitter, etc and still only use approx. 30% battery.
This is with the stock ROM. With a custom ROM that will improve and I can count using a maximum of 3 fingers the last time I was away from a charging source for more than an hour so i'm content.

You must be the only one I've heard of that only charges their iPhone4 every 3-4 days, everyone that actually use the phone has to charge it at least every day (that I know anyways).
And 19 mins checking fotball scores and 2 calls? Your screen was on for nearly 2 hours so I hope you got to do more than that.
I can usually get a solid 5-6 hours of _active_ use time out of this phone and that's better than any phone I've had before at least. But one must remember batteries are batteries and the one in SGSII only has those 1650mAh to work with, it isn't magic.
And if you're getting much more than 1% battery drain per hour you have a bug or a program eating your battery somewhere.
Oh and if it isn't good enough for you just return it or sell it, it's not like anyone forced you to buy it or like it. I would never tolerate having a phone I didn't like, it would go straight in the bin.

SBS_ said:
You must be the only one I've heard of that only charges their iPhone4 every 3-4 days, everyone that actually use the phone has to charge it at least every day (that I know anyways).
And 19 mins checking fotball scores and 2 calls? Your screen was on for nearly 2 hours so I hope you got to do more than that.
I can usually get a solid 5-6 hours of _active_ use time out of this phone and that's better than any phone I've had before at least. But one must remember batteries are batteries and the one in SGSII only has those 1650mAh to work with, it isn't magic.
And if you're getting much more than 1% battery drain per hour you have a bug or a program eating your battery somewhere.
Oh and if it isn't good enough for you just return it or sell it, it's not like anyone forced you to buy it or like it. I would never tolerate having a phone I didn't like, it would go straight in the bin.
Click to expand...
Click to collapse
Honestly, there isn't much choice is there. It's this thing , or the iPhone 4.
Blackberrys are rubbish, other mainstream phones are all Android based and have battery grievances aswell.
Battery life is such a limiting factor with these modern phones, the old nokia bricks use to last ages. I know they can do alot more, but I figured disabling all of the sync features and what not should atleast improve it a fair bit.
Doesn't seem to make any difference.
Going back to carrying spare batteries again, just for daytime use. lol

Arthur Hucksake said:
Honestly, there isn't much choice is there. It's this thing , or the iPhone 4.
Blackberrys are rubbish, other mainstream phones are all Android based and have battery grievances aswell.
Battery life is such a limiting factor with these modern phones, the old nokia bricks use to last ages. I know they can do alot more, but I figured disabling all of the sync features and what not should atleast improve it a fair bit.
Doesn't seem to make any difference.
Going back to carrying spare batteries again, just for daytime use. lol
Click to expand...
Click to collapse
today my screen has been active for 5 hours on my one year old galaxy s and i still have 29% left on battary. So i aint suffering from same issues as u

I didn't really use it much since i was carrying my BB most of the day yesterday
Complete opposite from OP's observation
I've said it from day 1 that battery life on this is great.
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Arthur Hucksake said:
So over 50% battery and I have got 19 mins of checking football scores and 2 minutes of calls.
Click to expand...
Click to collapse
19 mins of CPU usage doesn't mean you was checking scores for 19 minutes, but it took summarily 19 mins of 100% CPU usage. Plus if I look at display time then I think you was checking these scores for about 1:40 hrs and now you're surprised that it took ~50% of battery. Also I think you have brightness set to high, because display should not drain so much power.

Mine was up to 1 day 6 hours then I had the charge message on screen this was with a few hours of phone calls, maybe 35 texts, watched a bit of a video, web browsing, I am very pleased with the battery so far.

I get at most 15-20 hours out of my battery, limited use.
As many stated before, the phone is almost useless due to the bad battery. I dont know if I can see an entire Mkv 1080p movie in it. Only seen a few CSI 720p mkv videos, and they drain the s**t out of the battery.
Looks like we have to buy the big battery pack thats going to be released soon. Then it wont be so thin, or light though...
Here is a pic of my stats, phone is about to go dead in a couple of hours. That means Ill get about 15 hours out of it today.

First of all, your display was on for 1hr 47min, 13min of scores doesn't cause that....
Second, there are ways to get better battery life out of the phone.
Turn down brightness
Turn off auto sync
Turn off radios if they can't get signal
Dont stream videos/music
But why have a top of the line device if your going to do all that?
I turn my brightness up, I love the sexy giant screen. I auto sync 4 email accounts. I have 7 screens filled with power wasting widgets. I constantly stream pandora and watch espn at work, tvshowstream on lunch and in car. I overclocked also.
Lets say I use my phone to its fullest. All I did was buy some cheap hong kong batterys on ebay for $11 and switch them out as I need them. I can do anything and everything on my phone with confidence I won't run out of power.

corb06 said:
As many stated before, the phone is almost useless due to the bad battery. I dont know if I can see an entire Mkv 1080p movie in it. Only seen a few CSI 720p mkv videos, and they drain the s**t out of the battery.
Looks like we have to buy the big battery pack thats going to be released soon. Then it wont be so thin, or light though...
Here is a pic of my stats, phone is about to go dead in a couple of hours. That means Ill get about 15 hours out of it today.
Click to expand...
Click to collapse
What did you install on your phone? I'm still running full stock

Its not the best battery but it ain't that bad as many others, iphone 4 is good on battery and lasts a day or 2 with some use but ios is nothing like android interface so they carnt be compared that easy, i think there's room for improvement weather its a android update or custom Rom.

corb06 said:
As many stated before, the phone is almost useless due to the bad battery. I dont know if I can see an entire Mkv 1080p movie in it. Only seen a few CSI 720p mkv videos, and they drain the s**t out of the battery
Click to expand...
Click to collapse
:firstworldproblems:

I used to have an iphone 3 and I had to charge that baby every day...
While I would certainly like more standby time... Having an awesome computer in your pocket is way cooler than a dumb phone that's battery lasts four days.
I think this was one of Nokia's major miscalculations... That users wanted better battery life over phone features.

Not going to waste too much time with this, you picked the wrong phone to begin with, Samsung has this goal, to be in every pie. Their products have great reviews, but so research first and find a company that does better, one that actually takes the time to develop the product they primarily specialize in, and who have been around doing it (reliably) for awhile. I.e. Motorola, Htc
Sent from my PC36100 using XDA Premium App

Shadowzerosix said:
Not going to waste too much time with this, you picked the wrong phone to begin with, Samsung has this goal, to be in every pie. Their products have great reviews, but so research first and find a company that does better, one that actually takes the time to develop the product they primarily specialize in, and who have been around doing it (reliably) for awhile. I.e. Motorola, Htc
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
I actually went by reviews, they all point to this phone being the best alternative to the iPhone 4. Comments were generally that battery life was good.
Think their reviews were all based on ten minutes of use.

Arthur Hucksake said:
I actually went by reviews, they all point to this phone being the best alternative to the iPhone 4. Comments were generally that battery life was good.
Think their reviews were all based on ten minutes of use.
Click to expand...
Click to collapse
i've had mine since the fourth of this month and battery life is just as good if not better than the first week. That screenshot was taken earlier today

Shadowzerosix said:
Not going to waste too much time with this, you picked the wrong phone to begin with, Samsung has this goal, to be in every pie. Their products have great reviews, but so research first and find a company that does better, one that actually takes the time to develop the product they primarily specialize in, and who have been around doing it (reliably) for awhile. I.e. Motorola, Htc
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
Which samsung phone do you have? I would have to agree with HTC but motorola for smartphone? HAHAHAH

I dont't think 19min of checking football score and 2min of calls will even affect your battery life. 6hours and your battery down by 50%, not sure what you did to your phone. Just watched live football stream for 2 hours, everything else syncing etc, I never off background data, wifi constantly on, lots of widget and now after 19hrs I still left 28%.
If this phone were not good enough for you why don't you return it and exchange back for an iPhone4?
ps: My gf ip4 need to charge every 2 days (with light usage) but when shes playing lot of games and browsing, she will need to charge it at night before going to bed.

If you don't like the phone return it and get something else. That's some free revolutionary advice for you. No need to create another thread for this, you could have just made a new post in one of the others. Now have a good day.

Battery Usage - Please post your REAL numbers

Please post your DISPLAY TIME USAGE numbers. I do not give a flying crap about standby time...my phone can last a week easy if i don't use it and leave it on 2g mode. I want to know REAL usage numbers.
Please post using the following format
--------------------
Rom: 2.3.4 JVP Gingerbread
Kernel: Stock
Battery: Stock 1500mAh
Display Time On: 2-2.5hrs
Battery Life Left: Typically 25-30%
Usage:
80% 3G Web Browsing using Xscope browser
10% Text Msg
10% Phone Calls
---------------------
I want to get an idea of the actual battery life these phones have. The screen usage times seem to be pretty low.

They are indeed low.
Stock battery
Stock jvp
I end the day with about 3 hours screen on +1 hour streaming 3g radio.
5% left
Similar results on cm7
same use on the iphone 4 I had 50-60% left...
Sent from my GT-I9000 using XDA App

android53 said:
They are indeed low.
Stock battery
Stock jvp
I end the day with about 3 hours screen on +1 hour streaming 3g radio.
5% left
Similar results on cm7
same use on the iphone 4 I had 50-60% left...
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
stop comparing galaxy with iphone u sounds like one of those apple fanboy

candoo100 said:
stop comparing galaxy with iphone u sounds like one of those apple fanboy
Click to expand...
Click to collapse
Like how you contributed to the thread
Sent from my GT-I9000 using XDA App

im running nightly cm7 stock kernel,
with costume automatic backlights
battery usage : after 18 h - remain about 15-20%
40% display
20% android system
and 3 h on wifi
1-1.5 h games
and with apps

My light usage... 3G and background data enabled, bluetooth, wifi and GPS off.
--------------------------
Rom: 2.3.4 JVP Gingerbread
Kernel: Speedmod K15 T6
Battery: Stock 1500mAh
Display Time On: 20 mins @ 2% brightness
Battery Life Left: 64%
Usage:
Cell Standby 37%
Phone Idle 13%
Facebook 11%
Display 10%
Android System 9%
Beautiful Widgets 8%
Google Services 5%
Voice Calls 3%
Android OS 2%
Titanium Backup 2%
Gmail 2%
Sent and recieved 6 txt's.
My Backup Pro scheduled to run @ 11:59 to backup SMS, MMS, System Settings, bookmarks and dictionary.
Beautiful Widgets updates every hour.
Facebook updates every hour.
Sky News updates every hour.
1d 0h 5m 52s on battery
------------------------
Will run a video for an hour and update the results for comparison...
UPDATE!
And here they are.....
1d 1h 20m 32s on battery
Display 38%
Cell Standby 23%
Phone Idle 8%
Android System 7%
Facebook 7%
Beautiful Widgets 5%
Media Server 4%
Google Service 3%
Android OS 3%
Voice Calls 2%
Battery now showing 45% !!!

Bump..keep em coming.

candoo100 said:
stop comparing galaxy with iphone u sounds like one of those apple fanboy
Click to expand...
Click to collapse
GTFO.....
Come on you chickens...post up your number!

candoo100 said:
stop comparing galaxy with iphone u sounds like one of those apple fanboy
Click to expand...
Click to collapse
I agree though.
2 different phones. Different screens. Different OS. My gf has an iPhone 4 and she loves my phone. I don't really even rate hers. Personal opinions.Nice simple device if you are not computer savvy, that drops calls and is a biach to arrange files etc. Better battery life maybe but I use that strange thing that comes with the phone. A charger I think its called. Unless your phone is abnormally draining then it will last as long as usage allows. Since 2.1 all roms have had approximately same usage for me after calibrations. Some days I get back from work with 65%. Some days 20%. Depends on the day.
And if you have any smartphone that lasts 3-5 days, sell it and use the money on a public phone. You obviously don't use it much.
So many battery theads on xda are boring me now.
Sent from my GT-I9000 using XDA App

xchasa said:
I agree though.
2 different phones. Different screens. Different OS. My gf has an iPhone 4 and she loves my phone. I don't really even rate hers. Personal opinions.Nice simple device if you are not computer savvy, that drops calls and is a biach to arrange files etc. Better battery life maybe but I use that strange thing that comes with the phone. A charger I think its called. Unless your phone is abnormally draining then it will last as long as usage allows. Since 2.1 all roms have had approximately same usage for me after calibrations. Some days I get back from work with 65%. Some days 20%. Depends on the day.
And if you have any smartphone that lasts 3-5 days, sell it and use the money on a public phone. You obviously don't use it much.
So many battery theads on xda are boring me now.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Like how you felt the need to defend your purchase. If I was an apple fanboy why would I use an sgs? Battery comparisons between two devices that fulfil the same function are valid. Otherwise its like denying diesel cars get better mpg because they run a different fuel.
I have never managed more than 4.5 hours browsing wifi on the sgs, (0% brightness doesn't count) and I have tried every rom since july last year. When you test another device that more than doubles that performance, out of the box, it really opens your eyes.
Sent from my GT-I9000 using XDA App

android53 said:
Like how you felt the need to defend your purchase.
A.
I'm not defending my purchase. Got it for free ; ) and I'd happily try any phone with an open mind.
If I was an apple fanboy why would I use an sgs?
A.
I never said you were?? You were the one bringing iPhone battery life into a battery thread for Galaxy S??
Keep the comparison going in your own thread. I was referring to comparing two different os phones.
Battery comparisons between two devices that fulfil the same function are valid. Otherwise its like denying diesel cars get better mpg because they run a different fuel.
If diesel was the iPhone, like a diesel car its a bit boring for me.
Petrol (sgs) does not have the distance but the overall experiance is way better. In my opinion of course.
Btw. I recently sold my iphone 4. It was a nice phone but so many things pissed me off about apple. Want to put some clips or work documents on your work computer?? Apple says NO. Let me wipe your device first.
I have never managed more than 4.5 hours browsing wifi on the sgs, (0% brightness doesn't count) and I have tried every rom since july last year. When you test another device that more than doubles that performance, out of the box, it really opens your eyes.
A.
I agree with you?
Some days I thrash my phone, 3g always on, wifi always on, push always on, auto brightness always on bla bla bla and it always lasts the day. I go home and charge it. Simple. Like you, I've tried many roms and found them all roughly the same with gradual improvements to speed and user experience. Maybe why battery life is slowly decreasing if it even is. Faster and responsive = more fuel.
All I'm saying is its a personal opinion which phone is better and maybe some people should not worry about battery consumption so much if the device does what they want between charges.
Good day to you sir.
Sent from my GT-I9000 using XDA App
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Erm.........guys, a bit of civility please, don't let this descend into a bicker, it is potentially a quite interesting thread if you all stick with op's request for figures!
GTi9000 insanity cm012/glitch

I saw a 2 hour movie a few days ago (running jvp). When i started the movie the battery was at 99%, when i checked it again at the end of the 2 hours, the battery was at 86%. Is this good or bad?
Sent from my GT-I9000 using Tapatalk

Deoxeded JVO CF-root
one day I played inception 720 HD
which is 3 hrs played it continuously did not stop at any time
and lost about 22% wifi 3g were on
and sometime only on taptalk+whatsapp lose about 20% for 1.5 hrs or even less

Dont forget that beside the screen which always takes a lot of juice (at least in my case) also 3g signal strength has a lot of influence on the battery usage - it would be nice to have an app which logs the battery usage depending on the signal strength - anybody aware of something like this?
Sent from my GT-I9000 using XDA App

Useage:
Mostly wifi, browsing from times to times, when I jog, I use the GPS, bluetooth and media player, I used it around an hour in this uesage:
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frostygenius said:
I saw a 2 hour movie a few days ago (running jvp). When i started the movie the battery was at 99%, when i checked it again at the end of the 2 hours, the battery was at 86%. Is this good or bad?
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
Really good!
Sent from my GT-I9000 using Tapatalk

mine last 24 hour of heavy use on tubjv6 stock

slaphead20 said:
Erm.........guys, a bit of civility please, don't let this descend into a bicker, it is potentially a quite interesting thread if you all stick with op's request for figures!
GTi9000 insanity cm012/glitch
Click to expand...
Click to collapse
I should have figured...this is XDA, all we do its post about our standby time and how much we hate the iphone.
So far 2 people have actually been helpful.......
Sent from my GT-I9000M using XDA App

t1mman said:
Useage:
Mostly wifi, browsing from times to times, when I jog, I use the GPS, bluetooth and media player, I used it around an hour in this uesage:
Click to expand...
Click to collapse
What is your rom please ?
Sent from my GT-I9000 using XDA App

incredible battery life New Nexus S w/ *SCREENSHOTS now

i don't know if I received a "dud" unit in the sense, but i have noticed INCREDIBLE battery life on my Nexus S with moderate use. the first day i had it (2 days ago), I charged to 100% and then started using it. I would say I did about an hour of browsing, an hour of talking, an hour or so of texting, maybe 10 mins of GPS use, and an hour of unlocking, rooting, etc. also just left the phone unplugged from charger overnight. on the first charge, there was a point where i was at 1 day 12 hours and 16 mins on battery and still had about 40% left or so. I even have a pic of the battery usage page I will post. *it should be noted that i turned off wifi, gps, etc when i was not using it. and did not use a live wallpaper. *edit: i also had background sync turned on the entire time. syncing gmail, contacts, calendar, etc.
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That's over 2.5h "display on"-time and still 40% left, sounds quiet impressive. There's something wrong with your phone, in a good way.
If your numbers aren't accurate though, it's "normal". Idle use of 1% and less per hour w/o widgets and background active apps is nothing special.

it may also be related to you being on AT&T. i've read in various forms where people say that AT&T's mhzs (don't know the technical term) use less power than T-Mobile and WAY LESS than Sprint, which results in better battery life (the whole CDMA vs GSM thing).

The Sprint CDMA ones seem to have the most battery issues.

ronnienyc said:
The Sprint CDMA ones seem to have the most battery issues.
Click to expand...
Click to collapse
yeah coma takes more battery but also the nexus s 4g seems to have signal issues which drain the battery

derekwilkinson said:
yeah coma takes more battery but also the nexus s 4g seems to have signal issues which drain the battery
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Click to collapse
I'm actually seeing an increase in battery life with GRJ90....

My phone without mobile data on lasts about 20 hours...with mobile data enabled, but not necessarily active because i am usually on WiFi the battery life is reduced to maybe 5 hours...pretty bad...mobile here is Edge
Could it have anything to do with being in a bulding with thick walls? maybe the phone is using more power transmitting just trying to figure out where the cell is?
-gk

gkrawiec said:
My phone without mobile data on lasts about 20 hours...with mobile data enabled, but not necessarily active because i am usually on WiFi the battery life is reduced to maybe 5 hours...pretty bad...mobile here is Edge
Could it have anything to do with being in a bulding with thick walls? maybe the phone is using more power transmitting just trying to figure out where the cell is?
-gk
Click to expand...
Click to collapse
While it is true that bad signal harms battery life, 5h is ridicously low. Those 5h, how long is the display active in that period?
Check the battery status and see what is draining your battery so fast.
Try to change the WIFI rules from "turn off wifi when display is off" to "never turn off wifi" (you can still disable wifi the normal way, it just won't time out if there's a valid connection available), you can also set your phone to "2g only", if - as you said - your area has edge only anyways to further safe battery.

jrdatrackstar said:
it may also be related to you being on AT&T. i've read in various forms where people say that AT&T's mhzs (don't know the technical term) use less power than T-Mobile and WAY LESS than Sprint, which results in better battery life (the whole CDMA vs GSM thing).
Click to expand...
Click to collapse
well its not a cdma vs. gsm thing, if sprint where able to purchase those frequencies they would have and it would have been different.
Much the same with tmobile them being so late to the game those are the best freq. they could obtain.
much like how sprint/clear's wimax sucks really due to bands it had to run on.

during the 5 hours, display is on for very little time....wifi is not a problem..when the display is off i still get email notifications and all that...i dont turn wifi off when i go out to the street and its constantly searching and i still get like 20 hours...but with 2g on, battery goes fast. I am not worried YET though, as my time at this 2G only location is about to end soon, then i will test 3G. I will spend some time in the US and plan to get simple mobile there...i belive that will be 3G with the Nexus S.
I do more tests once I get there...here I cancelled the 2G data this week since it drained the battery and i barely got 20kbits downloads (literally useless).
-gk

jrdatrackstar said:
I'm actually seeing an increase in battery life with GRJ90....
Click to expand...
Click to collapse
Out of curiosity, how much time were you getting before and after the update? I sold my two Nexus phones because I was getting maybe 5 hours tops with average (not heavy) usage!
I am hesitant to try the Nexus again, unless everyone says the update made the battery life much better for the CDMA version.

ronnienyc said:
Out of curiosity, how much time were you getting before and after the update? I sold my two Nexus phones because I was getting maybe 5 hours tops with average (not heavy) usage!
I am hesitant to try the Nexus again, unless everyone says the update made the battery life much better for the CDMA version.
Click to expand...
Click to collapse
Well, 3.5-4h w/ display turned on is normal.
Sent from my Google Nexus S using XDA App

rentaric said:
Well, 3.5-4h w/ display turned on is normal.
Sent from my Google Nexus S using XDA App
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Click to collapse
This is around what I'm getting (without a LOT of Wifi usage, maybe an hour 1 tops.....the rest is on 3G). The way I like to test my battery is to see how far I can go WITHOUT Wifi because of course it will last forever with Wifi on (should anyway). I can average like 15 hrs a day, with around 3.5 hours of display time on (really depends on what I was using it for) after the update....
Along with that, the new Gmail update will most definitely increase the battery life even MORE now because I keep EVERYTHING on, including:
- GPS AND 3G location services (use to turn 3G location services off, but the battery has been so nice on the Nexus I never found the need to anymore)
- Auto-sync turned on for Google Account services (Gmail, back-up, etc.) and Exchange account
- Exchange Push account (syncs 3 days worth of stuff)
- Auto brightness for my display (I drive 2 hours to work and 2 hours back, and on the way home the sun is constantly on the screen so it has to auto adjust for the brightest setting for however long I use it driving home from work).
I don't have many accounts syncing or anything (not into Facebook, although I have one) so that may be why. But prior to the update, my 3G signal was weaker so my battery would die a little faster (although I've ALWAYS been able to make it through a day of work with my Nexus). For me, the battery life has always been the best of any smartphone I've used, but after the update it seems a little bit better; not DRAMATICALLY better, just a little better (still can't touch the iPhone 4 on-call phone I had for work for a week......didn't have to charge that thing but one time during that week )
Again, this is with the Nexus S 4G

I meant 5 hours when it is sitting idle most of that time. Maybe 2-3 hours of actual usage.

I have going long as 15 hours with normal usage.
Sent from my Nexus S using Tapatalk

LowQue27 said:
I have going long as 15 hours with normal usage.
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
You seem not to be on Sprint (cdma) so this particular battery issue is not related to you...

I'm really amazed to be hearing about all of these phones with such terrible battery life. I have a Nexus S 4G & my battery gets me through half the day now this could be due to the 1750mah battery I'm using & then I'll switch to the stock 1500mah to finish out the day. I consider myself to be a fairly heavy user because I'm always on it sending text, emails, web surfing, phone calls, utilizing it as a hotspot & the only thing I've noticed that really puts a drain on my battery is downloading massive amounts of data, streaming data & watching movies on Netflix. I even use it to game online with my PlayStation 3 because I'm in an area where there is no internet & signal strength is all but none. I guess I too have an anomaly but nothing like a day & a half I wish. If there is anyway to extend battery life any further I would love to know.
Sent from my Nexus S 4G using XDA Premium App

I get amazing battery life on my Nexus S 4g. I owned the Epic and the Evo before the Nexus S and I gave up on those because of the battery life. I'm usually at over 30% at the end of the day. I do have the latest stable build of netarchy installed. I undervolted using setcpu and have 1 profile. Underclock to 200mhz when the screen is off. I sync my Gmail as well.
Sent from my Nexus S 4G using XDA App

rockethot said:
I get amazing battery life on my Nexus S 4g. I owned the Epic and the Evo before the Nexus S and I gave up on those because of the battery life. I'm usually at over 30% at the end of the day. I do have the latest stable build of netarchy installed. I undervolted using setcpu and have 1 profile. Underclock to 200mhz when the screen is off. I sync my Gmail as well.
Sent from my Nexus S 4G using XDA App
Click to expand...
Click to collapse
What are your undervolt settings with that kernel?

hugo87 said:
What are your undervolt settings with that kernel?
Click to expand...
Click to collapse
1.4ghz: 1380mV
1.3ghz: 1280mv
1.2ghz: 1230mV
1ghz: 1150mV
800mhz: 1070mV
400mhz:885mV
200mhz:800mV
100mhz: 800mV

Battery Life "Holy Grail" Info

You may notice if you turn off Sync from the power widget and turn off cell data from the wireless settings menu, you can get the 4 to 5 days of standby. Of course then you have essentially a dumb smart phone.
Cell data is primary power drain in typical usage. That is partly why android tablets can go for weeks without a charge but phones just last a day (of course tablet has much bigger battery). Because of the variance in cell signal strength depending on location, you'll notice variable battery life especially when traveling. Also, having sync enabled wakes up the phone frequently even with cell data off. You can observe this in the battery use graph.
Juice Defender
https://market.android.com/details?id=com.latedroid.juicedefender&feature=search_result
Juice Defender uses this knowledge and turns off wireless data when the screen is off. Giving 1.5x battery saving. The pro version is even better and smartly turns off sync and only syncs at users option e.g. 30 minutes up to 2 hours.
Result is much improved battery life on any android phone with minimal loss of "instant" type notifications for email.

Apps like JD defeat the whole purpose of having push email/calendar/talk/voice e.t.c on a phone. I like use Gmail/calendar/e.t.c and like having those apps push info to my phone instantly, ofcourse at the detriment of battery life. Throw in apps like Skype and Trillian that i sometimes have running in the background and you can see where it's not too viable to have data turn off when screen is off. I thought the whole advantage to push anything was that it would save on battery life vs having to pool every x amount of time.
If JD Pro like you say only pools for data every 30 mins when screen is off then it might be worth it to some folks.
My thinking is that Android phones and good battery life do not go hand in hand. I've been wondering whether to stop using the Gmail app and experiment with setting it up in K9 mail since K9 mail supports IMAP idle push (and pushes my .Mac and AIM email accounts just fine).
Battery tech in just has to get better. I do get jealous of my friends iPhone battery life with all the push notifications going on and music and video playing, he still pushes 2 straight days sometimes on one charge. Me, i bought 2 batteries and a desktop charger on eBay for 9.99 and also have an iGo 1800mah portable dual usb battery charger thingy that i toss in my man-purse. So battery in NS4G (which dies by ~5-6pm usually), 2 spares and a portable charger.
I've always had a negative opinion of JD, but i'll give JD Pro a try and see how it impacts my need to instant gratification of push..

Let us know how you fare with the JD. I don't want to buy it if it doesn't improve battery life. I recently invested in the Just Mobile Portable USB Power Pack and that helps if you're away from a computer and a wall plug and need to get your battery recharged.

I use jd when I'm at work because a lot of the time I am in the ffield and just leave my phone in my car. If I need to call or text someone I just use the company blackberry.
I can come back to my phone after hours and only have 2-4% gone on my phone. Then I just use the toggle widget to disable jd when I have my phone on me after work and on the weekends.
Sent from my Google Nexus S using XDA Premium App

I used jd for half a day
I am a huge slacker (radio) and it caused my radio to wig out bad
I am sure this was the culprit even when disabled

Turning off data while screen is off is akin to stop and go traffic and your car getting worse gas mileage, everytime it turns on you have to reconnect and search for signal actually using more battery. Also, why buy a smartphone and not want 24/7 instant data access.
I keep wifi set to never sleep, and leave 4g radio off and location to gps sats only and get through my day with 0 issues on my battery. I took my phone off charger at 9am yesterday and now its 130am and i still have 20% battery, 2 gmail accts syncing mail and calender, 1 exchange set to push, twitter, google+, score mobile tracking 3 games today. Keep your backlight low and manually turn off the screen instead of waiting for it to timeout.

This is my usual rationale. I shall still evaluate JD for another day just to see if it actually does anything useful in my use case, otherwise I'll just carry around 2 spare batteries fully charged.

LordLugard said:
This is my usual rationale. I shall still evaluate JD for another day just to see if it actually does anything useful in my use case, otherwise I'll just carry around 2 spare batteries fully charged.
Click to expand...
Click to collapse
WHAT is it that you people do that you need to carry TWO batteries lol.
This thing lasts me all day. I mowed my lawn for 2 hours the other evening streaming slacker the whole time and barley made a dent in the battery.
But then again I have been used to my Iphone which had major battery issues to me. Where as this I might throw on the charger at work for a few or charge in the car while i drive, the Iphone I had to basically RUN everywhere on a giant wheel to continuously charge the stupid thing.

tevil said:
WHAT is it that you people do that you need to carry TWO batteries lol.
This thing lasts me all day. I mowed my lawn for 2 hours the other evening streaming slacker the whole time and barley made a dent in the battery.
But then again I have been used to my Iphone which had major battery issues to me. Where as this I might throw on the charger at work for a few or charge in the car while i drive, the Iphone I had to basically RUN everywhere on a giant wheel to continuously charge the stupid thing.
Click to expand...
Click to collapse
I swear I'm not war driving or trying to crack nuclear codes on my phone. The battery just drains like I can't explain. I'm not a power user, nay, regular use. For example, 1 Gmail account pushing mail/contacts/Calender/Google+, K9 mail with 3 accounts and that's it.
I hardly dare even use it to play music or videos (have a Galaxy Tab 7 for those uses).
I think the radio isn't efficient enough and just uses too much power (at least on some units I'd hypothesize).
Sent from my Nexus S 4G

I'm definitely doing away with juice defender, and just carry 2 extra fully charged batteries on my person and set certain apps not to sync or sync. Disabling 3g and wifi adnaseum defeats the whole purpose of having a smartphone and I find myself managing JD more than I care to.
Sent from my Nexus S 4G

i have only had my phone for like 4 days. Between mine and my buddies S we think the biggest drain is the screen.
it always shows up as the largest draw especially on auto.
Dont keep it on auto. keep it LOOOOOWWWWWWW.
I keep a brightness widget and if it gets to dark where i am (one in a thousandth of a shot so far) i tap it up a notch or two.
then reduce it when im not needing it anymore. Even on low brightness its really clear, but i have good eyes.
I also have my screen to time out in like 15 secs.
about the radio though, i think it depends on your local.
My iphones used to CONSTANTLY search and shift 2g/3g which made my batteries drain like crazy here in CT. this phone doesnt do the switch nor care to search that much.

tevil said:
i have only had my phone for like 4 days. Between mine and my buddies S we think the biggest drain is the screen.
it always shows up as the largest draw especially on auto.
Dont keep it on auto. keep it LOOOOOWWWWWWW.
I keep a brightness widget and if it gets to dark where i am (one in a thousandth of a shot so far) i tap it up a notch or two.
then reduce it when im not needing it anymore. Even on low brightness its really clear, but i have good eyes.
I also have my screen to time out in like 15 secs.
about the radio though, i think it depends on your local.
My iphones used to CONSTANTLY search and shift 2g/3g which made my batteries drain like crazy here in CT. this phone doesnt do the switch nor care to search that much.
Click to expand...
Click to collapse
Must be your locale. I'm sort of in what I thing is a bad luck fringe zone where it searches between 1x and 3g quite a bit. For example I was on the bus today and couldn't stream constantly with Tune In radio cause it would switch to 1x part of the way even though I'm in a solid 3g coverage area.
In the subway where my Treo would hold on to a weak but usable 1x Sprint signal, the NS latches on to Verizon (free roaming anyway) like Succubus. If I set it to Sprint only, then no service.
Sent from my Nexus S 4G

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strung said:
Click to expand...
Click to collapse
I'm so bloody jealous I want to hate you !! And you even have 4g on too.. grrrr
EDIT
Oh, i see now the Juice defender in the top left. Not worth it to me. I prefer to actually "use" my phone than have it gimped when the screen is off.
Sent from my Nexus S 4G

How does GMail use more battery then display, I mean you can't read&write mails w/o display active.

Here is another tip, underclock your CPU to 800 MHz instead of 1000 MHz. With that setting and JuiceDefender Ultimate, I'm starting at 9am with 95% battery and at midnight I still have 65% battery. (Only 30% loss over 15 hours.) Or about 45 hours on a charge. Of course usage dependent. And my cell signal isn't spectacular either, usually between -105 and -96 dBms.

I'm happy with the balance I have between functionality and battery life. I can go a full day using my phone as I desire with push and sync active all day.
Sent from my Nexus S 4G using Tapatalk

black square dots
I installed JD free and noticed 2 things:
-the battery´s use curve is less abrupt, and is saving a little bit of "juice"
-switching between apps I see black square dots popping on screen... is this some kind of JD´s bug? ´cause before installing it never occured...

alexcinci said:
I installed JD free and noticed 2 things:
-the battery´s use curve is less abrupt, and is saving a little bit of "juice"
-switching between apps I see black square dots popping on screen... is this some kind of JD´s bug? ´cause before installing it never occured...
Click to expand...
Click to collapse
I don't see that. Have you ever overclocked?

I wish folks would stop crowing about juice defender. It's defending nothing by shutting off data and so forth and gimping your phone. I'd rather carry a spare battery and actually use my phone to the best way it suits my needs. My opinion.

Post your battery life info *stock rom only*

Hey guys, I'm using the iPhone 6 plus now and I'm seriously thinking about switching back to android. Just can't stand iOS. My only concern is the battery life since I got excellent battery life on the 6 plus. From the reviews every reviewer says it's very good battery life but I need to hear real experience from actual users here. How is the standby time? Screen on time? Please stock rom only and please post screen on time and overal battery screenshot. Thanks!!

Standby time? Lol I've been on it too much for that. Battery is excellent don't sweat the move from iphone.
Sent from my SM-N910T using XDA Free mobile app

ear10 said:
Standby time? Lol I've been on it too much for that. Battery is excellent don't sweat the move from iphone.
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
My iPhone 6 plus has exceptional standby time so it gives me a feeling that the battery is endless. For example, how much juice does the note 4 lose overnight? (7-8 hours)

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Bluetooth and wifi always on, pebble connected, poor coverage area. I keep it set to pick up lte when available, but I only have edge where I live. I travel a lot though and still get good life when I actually get lte. I haven't tweaked anything (yet). Be warned that my first charge gave abysmal life. It wasn't until the second or third charge that I started getting decent life, so don't worry when your first charge runs to nothing after 8 hours.

Amen. I use powersaving, and you could always use the ultra power saving in a bind.
Sent from my SM-N910T using XDA Free mobile app

rookiegenius said:
My iPhone 6 plus has exceptional standby time so it gives me a feeling that the battery is endless. For example, how much juice does the note 4 lose overnight? (7-8 hours)
Click to expand...
Click to collapse
Around 0 to 1 percent. Maybe 2 if I get a bunch of notifications. My fiance has the iPhone 6 plus, trust me my note 4 destroys her iPhone in battery. With light to moderate use I'm easily getting 2 full days ( I send roughly 500-600 texts, maybe 20 emails, at least 20 phone calls, navigate to appointments and I'm always on pandora....also I have a moto 360 connected all day). When I'm doing heavy usage I get about 24 hours or so. But my heavy usage is actually HEAVY. I can almost guarantee you don't use your phone more than me. You will be fine with battery life.

pierrekid said:
Around 0 to 1 percent. Maybe 2 if I get a bunch of notifications. My fiance has the iPhone 6 plus, trust me my note 4 destroys her iPhone in battery. With light to moderate use I'm easily getting 2 full days ( I send roughly 500-600 texts, maybe 20 emails, at least 20 phone calls, navigate to appointments and I'm always on pandora....also I have a moto 360 connected all day). When I'm doing heavy usage I get about 24 hours or so. But my heavy usage is actually HEAVY. I can almost guarantee you don't use your phone more than me. You will be fine with battery life.
Click to expand...
Click to collapse
Thanks for the info!! I glad it does well with Bluetooth since I might buy a smart watch later. I intend to let Bluetooth and gps on,plus streaming a lot of spotify. Time to ditch the 6 plus.

Brightness at 50%. GPS on, Sync on, MultiWindow on.
Sent from my SM-N910T using Tapatalk 2

Excellent battery life. I use my phone almost all day and night. FB, messaging, music, texting, phone calls, camera, reading, photo editing, youtube. I use it extensively on a daily basis during the week. On weekends I don't use it as much so I have more than half charge by Monday.
Sent from my SM-N910T using XDA Free mobile app

I turn on power saving mode at 100% when i go to bed, and when I wake up 5 hrs later I'm usually at 99% or 98%. Without power saving mode, I wake up to 96%.
I can easily get through a full day at Disney World (about 8 hrs) with light usage - mixed use of wifi and 4g, checking the disney app and checking my farmville farm, and checking feedly. I usually leave Disney with about 50% juice left. Brightness on auto, wifi on, bluetooth off, gps on.
I've tested streaming as well. On 4g, starting at 100% charge, I can stream about 4 hour long episodes on Netflix, on Plex it's usually a little longer than that before it hits 50%. At home on wifi, I can stream about double that amount before hitting 50%.
I'm pretty happy about the battery life, and the best part is I can always remove the battery if this one goes bad, or bring spares on trips. I can live with Touchwiz if it means I can have removable batteries, sd card, and the pen.

rookiegenius said:
My iPhone 6 plus has exceptional standby time so it gives me a feeling that the battery is endless. For example, how much juice does the note 4 lose overnight? (7-8 hours)
Click to expand...
Click to collapse
I've done multiple tests on this. I will charge it up at night 100% then leave it off charger for the night, look in the morning. I'm averaging 3-4% discharge per night which is not too bad. My Nexus 5 was a ridiculous 10-15%. Still nothing close to iPhone that just doesn't go down if you don't use it.
I leave all things on. Don't really want a phone that acts like a 2002 device.

Hey all,
Ok So My battery is at 23% with 4 hours 45 min of screen time and it's been of the charger for 1 day 20 hrs 15 min and 20 sec

The phone charge so fast and it is amazing. I dont know if I want to do that in the long run bc fast ch arging is bad on battery!
I have a nice battery charger and it says charging the battery slow will last longer per charge and longer life cycle itself too.
So what do you do?

chong67 said:
The phone charge so fast and it is amazing. I dont know if I want to do that in the long run bc fast ch arging is bad on battery!
I have a nice battery charger and it says charging the battery slow will last longer per charge and longer life cycle itself too.
So what do you do?
Click to expand...
Click to collapse
I returned the iPhone and have used the Note for 2 days now. Battery is... Well, not as good as I expected. At least not comparable to the iPhone 6 plus. But I don't sweat on this since it does take quote some time for Android battery to kick in. I kinda wish Samsung didn't push the pixels since it's truly a battery drain. Also the GPS drains battery too. These 2 functions on the iPhone are very efficient.
And yes fast charge is wonderful. I say don't worry about the battery since it's fairly cheap.

rookiegenius said:
I returned the iPhone and have used the Note for 2 days now. Battery is... Well, not as good as I expected. At least not comparable to the iPhone 6 plus. But I don't sweat on this since it does take quote some time for Android battery to kick in. I kinda wish Samsung didn't push the pixels since it's truly a battery drain. Also the GPS drains battery too. These 2 functions on the iPhone are very efficient.
And yes fast charge is wonderful. I say don't worry about the battery since it's fairly cheap.
Click to expand...
Click to collapse
Simple fixes.
1.) Make sure you screen brightness is on auto
2.) Put on a background that is dark, or mostly black
3.) Set your location to device only (GPS only)
4.) Turn the run time to ART
You will easily see an increase in battery life.
Below is my normal battery life. And an example of a good background to use.
Had about 5.5 hours of screen on time.
Sent from my SM-N910T using XDA Free mobile app

I actually switched from GPS only to power saving. I have quite a few email syncing tho. One interesting thing... Are you sure we should be on art? I heard its not fully compatible.

rookiegenius said:
I actually switched from GPS only to power saving. I have quite a few email syncing tho. One interesting thing... Are you sure we should be on art? I heard its not fully compatible.
Click to expand...
Click to collapse
ART bogs down my phone so I don't use it. Also during boot up, it take forever to finish as it tries to optimize some apps every time. About 39 on mine. This makes my phone super hot and there's no way to bypass this process. I say ART is a bad idea.