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Galaxy tab 7" : low battery life

Any suggestions?
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rnbalala said:
Any suggestions?
Sent from my GT-P1000 using XDA App
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Whats the OS version.
** should be in the Q &A **

It is the standard one which comes with the tablet...
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Turn off 3G data, bluetooth, GPS, and wifi when not using it.
Try charging to 100% with tab switch on, once at 100% pull charge lead out and power down tab, then with tab switch off plug charger in again and charge to 100% once thats done unplug charger then boot and use tab as normal.
On my tab witch is rooted and using custom rom i find 3G Data eats my battery very fast but with it off my tab lasts a lot lot longer.

3g is a huge battery hog. I don't use it very often. I get 2-3 days poor of mine which includes 10+ hours of stereo Bluetooth per day and then 3 hours of 3g internet browsing. Also, having the screen off most of the time helps lol.
Sent from my SPH-D700 using XDA Premium App

Mine also standard using dxjpe 2.3.3 average daily usage tweetcaster,contract killer,browser,wifi,xda,tagged etc could hit 8-10h
sent from my 2.3.3|dxkg3 DJGalaxy S2

rnbalala said:
Any suggestions?
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Sell it ?

You must have a rogue Tab or doing something wrong.
As I'm typing this, I'm at 60% left and Tab has been unplugged for 57 hours according to Battery Indicator Pro, and I never turn off wifi, set sleep policy to "never", cause I have Gmail, calendar, Email app and other stuff like Google+, seesmic and so forth syncing automatically. Ofcourse 3g is turned off, don't have a plan yet.
Battery life on this thing is amazing.
Sent from my SCH-I800

LordLugard said:
You must have a rogue Tab or doing something wrong.
As I'm typing this, I'm at 60% left and Tab has been unplugged for 57 hours according to Battery Indicator Pro, and I never turn off wifi, set sleep policy to "never", cause I have Gmail, calendar, Email app and other stuff like Google+, seesmic and so forth syncing automatically. Ofcourse 3g is turned off, don't have a plan yet.
Battery life on this thing is amazing.
Sent from my SCH-I800
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57h?? wth???? How u did that?
send from my xda premium DJS2 2.3.3|DXKG3

Try This
rnbalala said:
It is the standard one which comes with the tablet...
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Hi Try updating to Gingerbread
Use the bellow link and resources -
http://www.youtube.com/watch?v=iWiKGB3RJI0
You Battery life will improve lot.
Have a Good Time.

CLOSE

CLOSE

About 33 hrs w/ WiFi OFF, 30 hrs on. With use: calls, messaging, Facebook, ect...... maybe about 22 hrs. Running apps all day are GoLauncher, GoPower, Magic Locker.... ect..

i get about 14 hours before i have to charge on a regular day

Cell signal quality and whether the cell radio is on make a huge difference for me.
I spend most of my time where I have wifi and now turn off the cell radio during those times, getting upwards of 30h on one charge (including occasional cell radio usage). Before I did this, I'd usually get through the day but not much more, around 14h.

I'm currently using Easy Battery Saver. It is making a lot of difference. Been playing around with the different settings. I will report back after a full charge than discharge.
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i got 8hrs today. i was using gps nav, camera and text. died on me and then i got lost..

I get around 24 hours on an average day. Have seen 2 days and a few hours before but it was in standby for most of that
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Not bad.
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Blaze has the best battery I've seen
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my next rom update will have more battery saving scripts/tweaks
sent from my batcave

All day and then some. I'll post a screenshot tonight.
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Why does it seem like my battery sucks. Or at least when i listen to tune in radio at work. 8am ill be at 100% and if i listen to radio for a couple hours by 12 noon ill be at 15%. That listening threw Bluetooth, wifi and GPS off, brightness all the way down. I no 4g kills ur battery way faster. But even if i turn 4g off battory still dies fast while listening to internet radio.
Any ideas why

trevor7428 said:
Why does it seem like my battery sucks. Or at least when i listen to tune in radio at work. 8am ill be at 100% and if i listen to radio for a couple hours by 12 noon ill be at 15%. That listening threw Bluetooth, wifi and GPS off, brightness all the way down. I no 4g kills ur battery way faster. But even if i turn 4g off battory still dies fast while listening to internet radio.
Any ideas why
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Are you the type of person to press the home button when switching in between apps? If so they're running in the background, and apps like Facebook can eat up CPU usage. Bluetooth and radio apps will do the same.
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I took it off the charger at 6:30, used it until 8:30, turned it off until 12:30, had a good signal until 6:00, had bad\no signal until 10:00.
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Bulletblitz27 said:
Are you the type of person to press the home button when switching in between apps? If so they're running in the background, and apps like Facebook can eat up CPU usage. Bluetooth and radio apps will do the same.
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Actually I do always hit the home button, to get from one app to launcher to another app, ext. If nor home, how do u get out of the app? Back button?

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Fairly typical. GPS is always on 24-7 and wifi on most of the time when home. Often end up charging and then taking off charge before bed so I get a 7 or 8 hour cruise mode with no activity to start off each battery stat as you can see by the plateau at the start. Over clocked @ 1344 w/ screen on, flat clocked with screen off and no undervolting so its not too bad. As soon as I move/copy/paste files or anything leaving screen on I see drastic drops in battery life but typical medium use lasts all day no prob and battery left to spare.
Sorry edit...... this is on my G-Nexus with Paranoid Android and trinity kernel.
My a500 on Flexreaper Extreem does about 25-30 hours with fairly heavy use. 40-48 hours when mostly idle. Overclocked @ 1504 screen on, 1000 screen off w/ Minor undervolt. Lovin custom roms !
WOW.....EDIT !!!! : I'm a tard. I could have sworn this was a Galaxy Nexus thread. I apologize, don't know how I ended up here.
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trevor7428 said:
Actually I do always hit the home button, to get from one app to launcher to another app, ext. If nor home, how do u get out of the app? Back button?
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Yes.
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trevor7428 said:
Why does it seem like my battery sucks. Or at least when i listen to tune in radio at work. 8am ill be at 100% and if i listen to radio for a couple hours by 12 noon ill be at 15%. That listening threw Bluetooth, wifi and GPS off, brightness all the way down. I no 4g kills ur battery way faster. But even if i turn 4g off battory still dies fast while listening to internet radio.
Any ideas why
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Tune in itself will drain your battery. Love the app but I use it sparingly as it kills any phone I've used it on.
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Sent from my SGH-T769 using Tapatalk 2

Battery life

This is probably one of the worst phones on battery life that I have ever had... No matter what I do, what tweaks I use of what rom I'm on... I always only get 7 to 8 hours of battery with 1 hr screen on time.
I honestly have no idea what to do... I'm so sick of it. Anybody have any suggestions?

Seriously?
I have been on my phone all day with a full charge and I still have about half the juice. I am on stock 4.0.4 ICS. The one that droidstyles has in his guide. The Rom that came with my phone sucked on battery. This Rom works great for some reason.
Sent from my SCH-I535 using xda app-developers app

What are your settings on? Post your settings (like screen, whether GPS is on, ect), a lot of times it has to do with your settings. I used to have so-so battery life but I tweaked some stuff in my settings and am very pleased with the phone.
Believe me, if you want bad, try the Droid Charge. Worst 4g phone I have ever had in terms of battery life.

This is on clean rom. Ignore the screen percentage, going down since this was a recently flashed rom.
Sent from my SCH-I535 using xda app-developers app

I have nothing running... Only thing that I actually did was run v6 and I am running kt kernel
I'm on pure motives rls7
I'll add a screen shot of my battery status tomorrow cause I just plugged in

I get 30 hours with 5 and a half hours screen time.
Idk why your battery life is so bad.
I have power save on, no vibration, and sync set to manual. That's about it. Battery life for me is amazing.
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Possible Idea
Don't know if this problem could occur with different ROM's, but I had issues with a runaway process that kept showing up. Maybe try Developer Options -> Show CPU Usage. I noticed that one called gsiff_daemon kept showing up at the top and was making my battery drain extremely fast. Everyone on this forum said it was a common issue and that it wasn't a crucial file, therefore I should just change the name so it wouldn't get accessed.

On RLS7 and kt kernel? This kernel has capabilities for overclocking/underclocking & overvolting/undervolting. By default your min Mhz is set to 384. Go into ktweaker and lower it to 96, test your phone out with a scaled stress test (play store app for stress testing). Then you can also go into the extra settings of ktweaker and set the Mhz for when your screen is off in addition to the governor (many options of which some are powersaving labelled).
If you want to save more battery read the kernel's thread to see starting undervolting values and lower from there while testing your phones limits. More undervolted you are, the less battery your phone uses for that particular frequency.
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You obviously never had the thunderbolt, now that battery sucked. You have to let the rom settle in and your battery will improve. Usually for me the first day not so good after that everything is fine.

mikeman45 said:
You obviously never had the thunderbolt, now that battery sucked. You have to let the rom settle in and your battery will improve. Usually for me the first day not so good after that everything is fine.
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I had a Thunderbolt. Yep, now that was poor battery life.
My S3 gives me 12 hours if I use it heavily. Typically, at 16 hours, I still have 40% remaining. I leave WiFi, bluetooth, and GPS on 100% of the time.
As bad as your battery is, I would suspect that you have a poor radio signal.and the radios are cranking up the power to work. Try using WiFi or turning off mobile data for a while to get the LTE radio turned off.

man, i barely get 8 hours at times

PureLife90 said:
This is probably one of the worst phones on battery life that I have ever had... No matter what I do, what tweaks I use of what rom I'm on... I always only get 7 to 8 hours of battery with 1 hr screen on time.
I honestly have no idea what to do... I'm so sick of it. Anybody have any suggestions?
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Its not the phone.
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worwig said:
As bad as your battery is, I would suspect that you have a poor radio signal.and the radios are cranking up the power to work. Try using WiFi or turning off mobile data for a while to get the LTE radio turned off.
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This. For example, I have a 4g tower nearby at work, normally (4-5 bars). But sometimes it disappears, and I end up on a 1-2 bar 3g tower for the day. On those days, my battery life is around 8hrs max, barely using it. On good signal, even with crazy heavy usage (4hrs screen on and lots of 4g web browsing) I can get over 8 hours.
Signal strength has a LOT to do with battery life.
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I get amazing battery life. Stock battery too.
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Check your Google account sync - could be something in there is not syncing correctly. Settings / Accounts / Google.
I had this - Internet Sync was not working but kept trying burning CPU, network, and battery. Disabled the failing sync and all was better.
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Is it switching between 3 and 4g a lot? Constantly searching is rough on a battery.
Sent from my ADR6300 using xda app-developers app

Wow. I've never gotten that bad of battery life. This thing is amazing on battery life!
Devices:
Samsung Galaxy S3 - stock JB leak
HTC Incredible - JB Inc RC3

Here is my battery life.
Sgs 3
Rom Wicked jb v1
Kernel stock
Uc 1.35
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I seriously doubt you guys are getting 7 plus hours of screen on time with the stock battery. If you are then you are charging it at some point.
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bond32 said:
I seriously doubt you guys are getting 7 plus hours of screen on time with the stock battery. If you are then you are charging it at some point.
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I am using stock battery on stock jellybean leak and get 30+ hours with 5.5 to 7 hours screen on time you can see from the pics above that we are not charging. The bar would go UP at some point if we were.
I just have my phone set up the perfect way to get maximum battery life.
It's simple. I personally have nothing to gain from lying about something so silly as battery life.
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continued to be blown away by battery life

I got my note from tmob and have it on att.
After root and killing all the bloat, the battery is just amazing on this phone.
I am at 1 day and 10 hour off the charger with screen time of 3 hours and 52 minutes and I still have 49% battery
Thats with facebook and gmail checks all day and running in the background. Photos, text etc etc.
Finally 2 day + phone

I'm actually pretty disappointed by the battery life... I "only" get 6.30h ost and 1 day battery life(no wake locks and the phone is settled pretty well with useless function disabled), with sync always active and on wifi only, I personally thought that it will be better considering all the good comments on the webs, I was getting the same battery with my iPhone 5 before(that it's very criticised for its battery).
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I turned off most syncs under Settings -> Accounts. Did the whole google services uninstall updates and cleared data. Great battery life also.
1d 1h 24m on battery. 19% screen. 64% remaining.

@Class said:
I turned off most syncs under Settings -> Accounts. Did the whole google services uninstall updates and cleared data. Great battery life also.
1d 1h 24m on battery. 19% screen. 64% remaining.
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That sucks having to turn of syncing. That's the main feature of a smart phone. Sync to and from computer or cloud.
Sent from my SM-N900P using Tapatalk now Free

My Note 3 has had awesome battery life, far exceeded my expectations! 10hrs at work with moderate to heavy use with a signal only 75% of that time (inside a building with thick concrete and re bar, not the phones fault). At most ive used 48% of the battery and that does not include the commute. I have sync turned on as well.
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dallastx said:
That sucks having to turn of syncing. That's the main feature of a smart phone. Sync to and from computer or cloud.
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Syncing it self is turned on, its the individual settings that's been changed:
Sync Chrome? no..
Sync Gmail? no...
Sync My Tracks? no...
Sync Picasa Web Albums? no...
Sync ChatOn Contacts? no...
Sync Samsung Calendar? no...
Sync Internet? no...
Sync Scrapbook? no...
Sync Skype Contacts? no...
So I'm not really sure what you're getting at. K9 handles my mail via push. Google calendar, contacts and one or two other things is left on but everything else I don't need it waking up my CPU every so often to sync.
Also for the Accuweather widget, all the battery saving features are turned on (which aren't on by default for some reason), sync every 4 hours.

@op : could you tell us which bloat you removed?
Also is there anyway to root safely that doesn't void the warranty?
I have the N9000 version

basically anything that was tmobile or just garbage. I also freeze a lot of stuff I simply never use. S-voice.. nope.
Not sure on the warranty thing. I am fairly certain this will trip the Knox counter which I dont think has been cracked to roll back... but thats just my understanding.

Battery life is pretty decent, provided you manage your phone as opposed to being a lazy sod who sets everything to automatic.
"But it's meant for it!" being the world's most idiotic excuse after "she asked for it", everyone with a scrap of common sense understands that there is a whole universe between 'what the customer wants' and 'what is possible according to the laws of physics'.
WiFi eats about 15% per hour, with the screen off. 3G 5%. Add the screen and cpu to that and make you own calculations.
I do 10 days with mine if I turn everything off and manually toggle 3g on once every 2h to check mail.
I've been on 3g, tapatalk & 30% brightness, went from 100% to 94% in 10 minutes.
Send From My Samsung Galaxy Note 3 N9005 Using Tapatalk

I use it mainly for office purpose and email exchange is ever hungry on push mails. I was quite disappointed to see that I was charging twice a day in day time. But after the OTA update things seems better, where I charge only in night.
Anyways, I got my 12,000 mah power bank for emergencies. I hate swapping batteries.
My heavy uses are exchange emails, browsing, WhatsApp. That's all, and yet Note 3 craves more power. Need on the go sunlight/light charge system
Benjamin Mark
Sent from my Galaxy Note 3

My battery last so long that at the end of the day I am doing stuff make it run down.
Of course I turn off wifi when not using and data.
I am pretty sure with root I could get more but I need my warranty for at least another month.
Usually a device will show its faults in a month so I will wait.
Sent from my SM-N9005 using XDA Premium 4 mobile app

I've had my N3 for a week now, and compared to my razr HD, it runs at least a day longer. I'm on about 3 full days per charge.
As my phone is more or less a toy, I don't use the internet part that much (I have a 200MB restriction) while away from home, but regularly use wifi for about an hour per day. Other than that, I use it for puzzle games and reading.
I know that this won't match others usages, but I'm ok with 3 days. Maybe if I tweak some settings, I get 4???

I'm quite disappointed too with the battery, the screens chews up too much battery on full brightness
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I wish I had 3 full days of battery life. I leave for work in the morning with 100% battery and Im usually at about 10% or less by the time I get home 12 hours later.

DMax99 said:
I'm quite disappointed too with the battery, the screens chews up too much battery on full brightness
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Mine gets about 5 ans half hours of screen time versus my nexus 4 which gets about 2.5 hrs
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jetbruceli said:
Mine gets about 5 ans half hours of screen time versus my nexus 4 which gets about 2.5 hrs
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Are you on full brightness with power saving off?
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DMax99 said:
Are you on full brightness with power saving off?
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Auto brightness but plus 5.
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jetbruceli said:
Auto brightness but plus 5.
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That's why yours last longer. Mines on full brightness, I think the screen looks best with that setting. The battery dies quick though
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DMax99 said:
That's why yours last longer. Mines on full brightness, I think the screen looks best with that setting. The battery dies quick though
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That doesn't make sense when it's in a dark room though
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jetbruceli said:
That doesn't make sense when it's in a dark room though
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Looks awesome in the dark ;p
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Nexus 5 battery defect

Do I have a battery issue ? I'm running stock. I almost did not use my nexus 5 for 3 hours (5min call, a few text and internet browsing) and already lost 30%. I just purchased my phone three days ago so it may be a battery defect
I tried stock + franco, paranoid + franco, but I could not get through 8 hours with a quite low use of the phone.

Install better battery stats.
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it could be your poor reception.. try switching to 3g and see how that works

I just got 4g today and it was the same with my old 3G simcard..

Prefect combination, running for over 14hrs and 22% remaining. Validus ROM 5.0 + ElementalX kernel (latest). ROM is super stable, smooth and loaded with goodies!.
Sent from my Nexus 5 using Tapatalk

Well everything is a guess without bbs
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I don't want to root it but basically bbs is saying i'm loosing 8% per hour, and I almost did not use my phone today.

Bam dmux is network related. Maybe you've some syncing going on.
What are the other screens showing?
Sent from my Nexus 5 using Tapatalk

Did you recently reset? At first it needs to sync a lot of your Google data. Honestly the numbers don't seem that far off what you'd expect without basic battery adjustments. 30+mins of Play Store, 10+min of voice calls and fairly low signal data usage throughout. Auto brightness is on?
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wizardcud said:
I don't want to root it but basically bbs is saying i'm loosing 8% per hour, and I almost did not use my phone today.
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Share some more screenshots brother
Just see to it that bluetooth, sync, gps, nfc and wifi scanning in background is turned off when not required
You can optionally check restrict background data to save battery further more
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