Database Users

Wlan when standby and battery when not using

Does enabling wifi when on standby drains battery, even if you're not connected?
I made some registry changes yesterday and I also enabled this with wifi, and I woke up with 20% less battery, normal for me is 7-10%.
I can't figure it out what I did wrong except if wifi is the problem?

yes if your wifi is on it will consume more battery. check if your mobile is constantly checking for new mails or updating the weather. disable them if you want your battery to last longer.

shak7i said:
yes if your wifi is on it will consume more battery. check if your mobile is constantly checking for new mails or updating the weather. disable them if you want your battery to last longer.
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Click to collapse
I would like to disagree completely. I've already ran rigorous test just to prove if it does or not on MY HD2. And let me tell you that it does not. YMMV.
It eats just as much battery as if you're using it but without the display on. So in any case, it eats less because the backlight remains off.
Using DsE V6.5 ROM. I got my battery to drain 3% every 12-15 minutes leaving Weather to update every 30 minutes and Send/Recieve new Mail every 5 minutes, Have pandora playing in the background and leaving web browsers opened, google maps activate.
During my test, I recorded the time and the % drop. I started at 9AM @100% and Dropped to around 3:30PM to 7% battery left. Now remember, this is a constant run without turning the device off, never turning wifi off and without exiting any windows. Also, Ive set my device to dim the screen after 1 minute and let it blackout after 2 minutes. Just take note that every time I picked up my phone to change a pandora station or read a new email, I never push the "end" key to let the screen go blank instantly. I let it do its full 2 minutes thing and let it go blank automatically.
This is just so I remain very rigorous!
This has helped me understand a lot about my battery and how much I can pull it out during a full days or usage.
I noticed that My battery can last up to 6.5 hours of basically, NON-STOP usage. Just image if I turned off wifi and only needed it the moment I wanted to check if i had new mail, etc. My battery would last ALL DAY.
FYI, under normal use, my battery is around 55-65% by the end of the day under moderate use.

I have updates every 6 hours for weather, but I can see it connects to 3g when is the time. This is not the problem.
The problem started yesterday/today when I made some registry changes...I enabled 24bpp colors and I turned vsinc off.
I am not connected to wlan, it is turned off, I only enabled the option "enable when in standby" if I sometimes need it when phone goes in stand by.
I am asking...does enabling ENABLE WIFI IN STAND BY eats battery when NOT USING WLAN AT ALL?
Thanks

Owners: How long does your battery last?

How long does your Galaxy S battery lasts when APN is enabled?
Bought mine at Singtel and my Galaxy S came with a G7 battery...
my battery lasts barely a day.. I need to turn off APN so it can last longer.
I also installed Task Panel X to kill the running apps which I think is using my Data (if I didn't turn of APN).
I'm curious about these 3 apps, they always runs again even if I killed them using Task Panel
1) SNS -> Phonebook & Facebook integration, even if I disabled the auto sync and turn off Sync in the Power Control Widget.
2) My Uploads -> I'm not uploading anything..
3) com.sec.android.app.samsungapps.una -> what is this?
4) Feeds and Updates -> even if I'm not using this widget.

3) com.sec.android.app.samsungapps.una -> what is this?
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Click to collapse
Im guesing that is touch wizz​

once I got all apps installed (coming over from G1) it get very bad, barely get through a full day, I can see it ticking down at times.....cant seem to track down the culprit apps though

I woke up at 6am this morning, got low batter warning at 10am this morning wtf! (first day of having the phone).
Hope it gets better....

Mine is still showing about 1/4 charged after 24 hours of light use.

Been useing it for a few days now and most off time got BT and wifi is on from time to time at home and work to speed things upp, and also every morning/night on my way to work play music. And use mail,sms and call for quite a bit every day, and on the night when i go to bed i got around 20-30% left. I take it off like 7 at the morning and i put it in charger at around 22-23 so should say battery is quite nice so far.

mine has great battery too.. but I don't have 3g yet
either way even if my internet is closed, many of the apps you mentioned still run out of nowhere.
Once we get root we'll be able to disable them via the application "Autostarts"

Archius said:
mine has great battery too.. but I don't have 3g yet
either way even if my internet is closed, many of the apps you mentioned still run out of nowhere.
Once we get root we'll be able to disable them via the application "Autostarts"
Click to expand...
Click to collapse
we have root already...
but looking at the autostarts list, can't decide which can be disabled....

battery life huh..
i listen to music.. search the web.. read pdf's.. calls.. gaming (tangram pro).. play with the interface..
all in all.. battery kinda sucks.. i always carry with me the Gata USB cable so that I can charge at work.
i travel for 1.5 - 2 hours to work and i can manage to get the battery nearly half once i reach work after using the phone (no calls).
hopefully we will see high capacity battery for the phone like 3500mAh - 3800mAh..
oh yeah, someone said that you need to drain and charge it 5 times to get the battery working at 100% capacity.. not sure though.. and haven't tried.. but will try eventually.. hehehe

kenkiller said:
we have root already...
but looking at the autostarts list, can't decide which can be disabled....
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Click to collapse
sorry yes I know we have it but I wrote it wrong haha I meant once we have an easier way to root xD
I'm not comfortable rooting that way. I remember it was easier before :/ ..

I have to say my battery life has been pretty good. I didnt charge the phone when I got it like some have said you should do, it arrived with 40% battery and lasted about 6 hours of constant use. The next day it lasted just shy of 24 hours and then with medium use im getting about 32 hours out of it. Today im on 71% after 12 hours of use. I expect I can get 2 full days out of it if I could leave the phone be for more than 5 minutes but that screen is too hard to resist. This is with push email always on, twitter updating every 15mins, stocks updating every 30mins and a live wallpaper. The screen does have the brightness turned all the way down though, I only bump it up when in direct sunlight.

About 50% longer then my Desire lasted with the same Apps.

Any ideas on why mine would be so low? Have been awake for 3.5 hours now, and am on 63% battery. Light internet surfing on wifi for some of it, but a lot of it was just standby...

rodh257 said:
Any ideas on why mine would be so low? Have been awake for 3.5 hours now, and am on 63% battery. Light internet surfing on wifi for some of it, but a lot of it was just standby...
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Click to collapse
Have a look at what your wifi is set for connecting and downloading emails.
Mine was set to connect every 5mins and I didn't get round to checking this feature for the first couple of days.
During that time my phone needed charging twice a day.
Ithen changed the timing from every 5mins to every 1hr (and nothing else), now instead of charging 2 x daily I get a whole days use with some to spare.....
When the machine lays idle wifi is the biggest battery eater.

rodh257 said:
Any ideas on why mine would be so low? Have been awake for 3.5 hours now, and am on 63% battery. Light internet surfing on wifi for some of it, but a lot of it was just standby...
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Click to collapse
My initial thoughts would be something to do with the fact, you are charging through USB, and not the mains power supply.
I have found USB, never fully charges my phones, and even when it says 100%, it very quickly drops below, after some use.

thanks for your thoughts guys.
My initial charge was on USB, and I was using it while charging (and unplugged it once or twice), maybe it's just got bad calibration or something as a result and thinks its running low when it isn't? dont know if this is likely or not.
My second charge was via the mains power, with a UK->Australia power adapter.
THen next one was USB
Then last night I charged it using my girlfriends iPhone power adapter (which is a USB -> mains, so I plugged my cable into it).
My exchange email is every 5 minutes, but I kind of want that to stay like that, I might try moving it if I can't think of anything else. Gmail I think can't do anything but push?
my wifi is connected most of hte day, at home and at work, though I just turned off the setting for alerting for new networks, maybe that will help?

rodh257 said:
I woke up at 6am this morning, got low batter warning at 10am this morning wtf! (first day of having the phone).
Hope it gets better....
Click to expand...
Click to collapse
Happened to me before.. even if I turned off "Sync" in the "Power Control Widget" or setting the phone on 2G Mode.
but I found a possible solution.
Try to un-check the "Background Data" under "Settings - Accounts and Sync". I noticed that the phone still uses data even if I killed all the tasks. Also make sure that you don't have any auto sync settings like "Feeds and Updates", Facebook, Tweeter, etc.. (if you don't need it)
*Android Market needs this "Background Data", it will ask you to turn it on. Just turn it off after..

Startup auditor doesn't require root and seems better then autostarts . I Just bought it. works great ....just an fyi
Sent from my android device using tapatalk

I too have the Sanny Galaxy S from Singtel but i flashed the euro fw to get rid of all the bloatware.
Could go into the location menu under settings and turn off the 'get position via wireless networks' option as i find that with that on, the wifi keeps turning itself on although the icon does not pop up in the task bar.
Battery lasts about a full day for me so far with moderate usage (about 1hour of music, 30mins web browsing, push Gmail and Hotmail + Exchange syncing every hour)

m3keni said:
i listen to music.. search the web.. read pdf's.. calls.. gaming (tangram pro).. play with the interface..
all in all.. battery kinda sucks.. i always carry with me the Gata USB cable so that I can charge at work.
i travel for 1.5 - 2 hours to work and i can manage to get the battery nearly half once i reach work after using the phone (no calls).
hopefully we will see high capacity battery for the phone like 3500mAh - 3800mAh..
oh yeah, someone said that you need to drain and charge it 5 times to get the battery working at 100% capacity.. not sure though.. and haven't tried.. but will try eventually.. hehehe
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Click to collapse
Draining the battery is bad. These batteries you should try to charge whenever possible. Draining it will lower the capacity.
Sent from my GT-I9000 using XDA App

Signal Strenth and Battery Life

I just got my droid x a few days ago and I'm having problems with battery life. I work 12 hour days at a state penitentiary which cell phones are not allowed to enter the building. My phone is rooted and I have about 8 bloatware apps removed like blockbuster, skype, ect in case that matters at all. My typical day is waking up at 4 AM unplugging my phone fully charged. I get to work at 5 AM and between 4-5AM I prolly send one text and sometimes visit one website. So at 5AM my phone is in standby mode until I take a lunch and come out to my car between 12-2. So the phone is on around 9 hours so far but not used much at all. Today I took my lunch at 1PM and when I pulled my phone out my battery was at 15%. The battery ussage is like 72% cell standby, 14% screen, and like 14% Phone idle. I checked my signal strength at work and it was like 99-102 dBm which I beleive sucks. Also today was very hot 100+F so that might also play a factor but I came from a iphone 4 last week that went through the same daily routine and never had battery problem (of course att may have had better reception at work which used less battery). So what do yall think? Is it because of the poor signal strength that runs the battery down within that time even though its in standby? Is there a problem with my phone?

I know this isn't really a fix per se, but any reason not to put it in airplane mode?

gefahr said:
I know this isn't really a fix per se, but any reason not to put it in airplane mode?
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Click to collapse
yeh thats what Im going to try tomarrow. Just weird my wife has the same phone and in a full day of her using her phone it still has 70% battery life when Mine is in standby all day and it dies. But I do work at a prison out in the middle of nowhere and im sure the reception it very bad but i didnt think that would cause a phone in standby to go from 100% to almost dead without using it. Guess ill figure it out tomarrow when I try airplane mode.

Try juice defender
Sent from my PC36100 using Tapatalk

Try turning off GPS. That made my standby mode last 10x longer.

Just a thought are you using handcent? I was until 2 days ago after do some tracking it appears that it was not acting well with something and my battery died very quickly. Since my wife has it on her phone as well I am guessing it is with something else I have DLed but since my wife has not gotten many apps I have a hard time finding out what it might be. But changed to chomp yesterday and at the end of a 16 hour day while taking 130+ pics along with texting browsing ect was at 60%.

Are you using an exchange account to sync email? I found that when I leave the exchange email sync set to "push" or "as arrive" (or whatever that setting is) it totally drained my battery. However, when I set it to sync every 15 min my battery life improved probably 2x.
Sent from my DROIDX using XDA App

battery usage all depends how the user phone is setup, if you have email clients with push activate, that will drain battery, having gps location on will drain battery, screen brightness will drain battery, widget that update though internet(3g, edge) will drain battery and etc; take all that into account and try out the battery manager on the phone that turns off data connection after 30mins of inactivity.

What is going on?

I turn my phone off last night with 50% battery left. This morning I turn the phone on and it tells me to charge the battery and then shuts off.
Here is where it gets weird; the exact same thing happened to my wife's phone except she had almost a full charge before turning it off.
What is going on?

I don't know I have gone 26 hours in mostly standby and I still have about 65-70 % of battery left. Check all your settings. I only have sync and back light to Auto turned on.
This is not normal and has never happened to me. Have you installed any apps from the market?

Little more info, please. Are your phones pre-OTA or have they been updated? Are they rooted? Did you just buy the phones? Have you trained the battery (fully charged then fully drained)? Have you done a factory reset?

Both phones are post update. Both were turned off by holding the power button then selecting "power off". Both have exactly the same apps that we had on our previous Androids (Vibrant and N1). Both bone stock. Have not factory reset, really don't want to go through the work of setup again.

I have never powered mine down completely overnight so I guess mine is not the same comparison. I might try it though just to see.

Ya they hold a great charge all day when on nut lost all their charge when powered off.

Is fastboot checked in settings or not?

esincho said:
Is fastboot checked in settings or not?
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Click to collapse
Yes it is checked

Try unchecking it

esincho said:
Try unchecking it
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Click to collapse
Is this a feature known to eat up battery? I mean if I left the phone on all night it would have still had a charge.

SugarMouth said:
Is this a feature known to eat up battery? I mean if I left the phone on all night it would have still had a charge.
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Click to collapse
Idk, shooting in the dark here, never heard of a problem like what you have. Wouldn't hurt to try. I know the fastboot has something to do with the way the phone shuts down.

That battery behavior is just strange unless you have apps syncing frequently.
I unplugged last night at 1am, went to bed, and got up this morning at 8am, it went from down fully charged to 93%. I have autobrightness on, wifi on, gmail and exchange syncing, every other app that syncs I have it to sync at least every 6 hrs or once a day.
I've had this phone for 3 days now, and I'm consistently able to get 12-14 hrs of battery time, and that includes heavy internet use, radio, tv, etc.
Are you in an area where it's constantly trying to pull a signal? Maybe that's what's eating the battery?
Are you doing the steps to condition the battery? Charge until fully charged, turn it off and keep it charged another hour, then take it off charge and use it until it completely dies on its own, charge it back up again and then use as normal?

Yeah, but he saying he powered the phone down, not left it on and just idle. Now that's strange

nmw407 said:
That battery behavior is just strange unless you have apps syncing frequently.
I unplugged last night at 1am, went to bed, and got up this morning at 8am, it went from down fully charged to 93%. I have autobrightness on, wifi on, gmail and exchange syncing, every other app that syncs I have it to sync at least every 6 hrs or once a day.
I've had this phone for 3 days now, and I'm consistently able to get 12-14 hrs of battery time, and that includes heavy internet use, radio, tv, etc.
Are you in an area where it's constantly trying to pull a signal? Maybe that's what's eating the battery?
Are you doing the steps to condition the battery? Charge until fully charged, turn it off and keep it charged another hour, then take it off charge and use it until it completely dies on its own, charge it back up again and then use as normal?
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Click to collapse
Yes but he is powering completely down not just in standby mode so nothing would be syncing. I will try this tonight and see if I have the same thing.

My wife had about 75% charge, I had about 50% charge. We both held the power button until the menu came up, we hit "power off". Both of our phones had dead batteries this morning.

I would download spare parts and see what apps are using ur battery
Sent from my HTC Glacier using Tapatalk

itmustbejj said:
I would download spare parts and see what apps are using ur battery
Sent from my HTC Glacier using Tapatalk
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Click to collapse
None of this would matter cause the phones are powered off.

If you have fastboot checked, the phone is not actually turning off. It goes into a quasi-sleep state and some low level processes may be running. That said, your problem may be related to the following thread:
forum.xda-developers.com/showthread.php?t=839935
the fix: enable USB debugging mode.
Another possibility, and this is someting that's happened to me in the past: the phones may be plugged into an outlet that loses power when you turn off the lights at night

Fast boot is similar to a Windows computer going into hibernation or standby mode.

Mine has been acting weird since Friday. I woke up and it totally discharged overnight... it was 100% charged when I went to bed. Yesterday it was laggy constantly and the battery has been draining at least twice as fast. Today phone locks up constantly.. apps are force closing.
... have rebooted, pulled the battery, etc... phone has gone from a dream to a nightmare in that respect.
Gonna double check my debug settings and see what happens.
EDIT: debug was turned off. I turned it on... will report back if there is a change.
UPDATE: Turning on USB debugging and a reboot seems to have fixed it. Battery drain `back to normal.

Tab Pro 8.4 Battery Life

How much battery life are you guys getting on your Tab Pro 8.4? I bought mine couple of days back and I felt it's disappointing.

metaldood said:
How much battery life are you guys getting on your Tab Pro 8.4? I bought mine couple of days back and I felt it's disappointing.
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Click to collapse
Mine has been fine. But, i use it to read and browse the web. I rarely make it down to 50% each day.
Cheers,
Rich

rholm said:
Mine has been fine. But, i use it to read and browse the web. I rarely make it down to 50% each day.
Cheers,
Rich
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Click to collapse
What's your on-screen time in battery stats? Or maybe post a screenshot of your battery usage.

metaldood said:
What's your on-screen time in battery stats? Or maybe post a screenshot of your battery usage.
Click to expand...
Click to collapse
It shows 2 hrs 10 minutes. I have 67% battery left.
Cheers,
Rich

What bugged me was the disappointing battery life when the screen was turned off (not completely powered off of course). Even in airplane mode it would die in a day or two just sitting around. Battery stats showed Android System and OS were killing the battery. I never figured out if there was a setting or something to fix it.
Instead I loaded Cyanogenmod 11 on it a week ago and now it uses only 3% of the battery a day when I'm not using it. I don't miss any of the Samsung extras.

sbleacher said:
What bugged me was the disappointing battery life when the screen was turned off (not completely powered off of course). Even in airplane mode it would die in a day or two just sitting around. Battery stats showed Android System and OS were killing the battery. I never figured out if there was a setting or something to fix it.
Instead I loaded Cyanogenmod 11 on it a week ago and now it uses only 3% of the battery a day when I'm not using it. I don't miss any of the Samsung extras.
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Click to collapse
Something must be keeping it awake. My tab has excellent standby battery life.
Doesnt lose more than 5% in a day. I do have the setting to turn wifi off when in sleep mode though (unless plugged in)
Battery life on the whole varies. Video watching through the stock video player drops about 10% an hour. Surfing would depend on your browsing habits. Gaming drains close to 20% an hour. Pretty standard. That along with the excellent stand by time means I get about 2 days of use on a charge.

Every day at work telephony, internet, email, IMO 24hours, 24hours Bluethooth Gear 2 connect. Dinner consists of my tablet battery 55%. For me life is great. My tablet root and frozen Samsung Apps (Bloatware) ... XDA .... Try the Nova launcher from the Play Store to Improve speed. Set it as your default launcher then Disable / Turn Off;
Flipboard, MagazineWidget, S Voice, Samsung Apps, Samsung Apps Widget, SapaMonitor, Screen Saver, World Clock, and (Hancom, Office for Android Share, Hcell, Hshow, Hword, Updater, Viewer Launcher, and Widget) if you do not plan on using it.
We will be adding Quadrant test 24,000 points on the original ROM.
Play google baterry doctor.

Battery life is good its an app thats draining the battery.
Sent from my SM-T520 using Tapatalk

208
rkial said:
Something must be keeping it awake. My tab has excellent standby battery life.
Doesnt lose more than 5% in a day. I do have the setting to turn wifi off when in sleep mode though (unless plugged in)
Click to expand...
Click to collapse
Yes it was using as much battery as watching a movie with the screen on. Something was terribly wrong with it. I think this behavior started after a software update I got from Samsung.
I turned everything off including Wifi and it was still eating the battery while sitting there with the screen off. I have never seen that with any Android device I've ever owned.
But I'm happy with Cyanogenmod. Battery life is outstanding now.

My battery life was mediocre, and then I put cyanogenmod on, and it went to dreadful. With the tablet at 100% and OFF, untouched, it would be 20% down in 10 hours. In contrast, my iPad loses maybe 3% in that time, doing the same thing - tracking email.
I ran a wakelock tracker and noticed that Exchange Services has it awake about half the time. The total time. Like in 10 hours Exchange had it awake (with screen off) more than five hours. Effen ay. Something is seriously screwed up with how Cyanogenmod's Exchange talks to the two Exchange services I use. Switching from Push to "5 minutes" has helped significantly; Exchange is still the worst culprit, but now only by a factor of four rather than a few hundred.
Ideally what I'd like is the new Exchange apks modified to prevent admin and fixed to be less wakelock intensive.

rkial said:
Something must be keeping it awake. My tab has excellent standby battery life.
Doesnt lose more than 5% in a day. I do have the setting to turn wifi off when in sleep mode though (unless plugged in)
Battery life on the whole varies. Video watching through the stock video player drops about 10% an hour. Surfing would depend on your browsing habits. Gaming drains close to 20% an hour. Pretty standard. That along with the excellent stand by time means I get about 2 days of use on a charge.
Click to expand...
Click to collapse
What is your on-screen time during the 2 days?

Wotta said:
I ran a wakelock tracker and noticed that Exchange Services has it awake about half the time. The total time. Like in 10 hours Exchange had it awake (with screen off) more than five hours. Effen ay. Something is seriously screwed up with how Cyanogenmod's Exchange talks to the two Exchange services I use. Switching from Push to "5 minutes" has helped significantly; Exchange is still the worst culprit, but now only by a factor of four rather than a few hundred.
Click to expand...
Click to collapse
Cyanogenmod has their own version of Exchange?
Our Exchange servers at work are ridiculously slow and unreliable. They can take two minutes to return your mail which is a major drain on your battery if it's set to check it every five minutes and you get a lot of mail. Sometimes they'll just stop responding and leave you hanging. The IT people just tell you to keep trying and you'll get your mail eventually.

metaldood said:
What is your on-screen time during the 2 days?
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Click to collapse
Dunno.. 7-8 hrs I guess. Screen on time really doesnt mean much without any context.
I can get 12hrs+ watching videos on 20% brightness. I can kill it in 4 hrs playing games at 100%.
Like I said, the standby is excellent. Drains less than 10% in 2 days. So for me, I have about 90% to use over 2 days.. and from my experience,
video drains less than 10%/hr
gaming ~20%
reading books drains less than video.
General surfing, mails, social networking uses between 10-15% depending on how you are using it.
My brightness is usually around 40%. Goes up rarely when I'm using it bright conditions. Goes lower when I'm reading late at night
Should give you an indication of what you can expect from the battery depending on your usage..

Mine drains about 10% per hour while constantly using the device for light tasks, such as reading, web surfing, and watching some YT videos here and there. That increases to about 15%/hour when I watch movies. So after watching a 2 hour movie, I expect to see about 70-75% of battery left. Now if I'm listening to music for an hour at the gym with the screen turned off, it only drains about 3%.
At first, I thought that was pretty mediocre and felt disappointed. But I've taken my tablet with me on many trips and never had it die (usually just close to 20%). I rarely ever use my external battery pack. I know this will vary depending on how long the trip is and how much you're using it, but I'm just saying that it meets my needs despite having a lower battery life compared to some other tablets. I do all I can to extend it, but I don't have to constantly watch it.

Last night I charged the tab 100% and with Wifi off (sync for 1 min every hour. )
Today the battery is at 71% - On battery 13hours - 44 mins
27% Android OS
24% Google services
13% Android System
8% Onscreen time - 20 mins
Should I flash CM to fix this?

metaldood said:
Last night I charged the tab 100% and with Wifi off (sync for 1 min every hour. )
Today the battery is at 71% - On battery 13hours - 44 mins
27% Android OS
24% Google services
13% Android System
8% Onscreen time - 20 mins
Should I flash CM to fix this?
Click to expand...
Click to collapse
CM won't fix that. Install Better Battery Stats or Wakelock Detector to nail down the precise problem. If you're using them, it could be Exchange Services or Google Drive (yeah, that turkey wakelocked me to oblivion!), at which point you at least know what to attack.
You can find BB on XDA here and WakeLock Detector on XDA here, both are also in the Play Store.

Wotta said:
CM won't fix that. Install Better Battery Stats or Wakelock Detector to nail down the precise problem. If you're using them, it could be Exchange Services or Google Drive (yeah, that turkey wakelocked me to oblivion!), at which point you at least know what to attack.
You can find BB on XDA here and WakeLock Detector on XDA here, both are also in the Play Store.
Click to expand...
Click to collapse
Google search with 23 mins of wake time and Gmail with 6 mins.
Currently Deep sleep is 14 hr 26 mins. Total time is 17h 5m. Awake is 2h 39m. Screen on time - 27mins.

I added the google now widget a couple of weeks back and that caused some wakelocks and overnight battery drain. Removed it and didn't have the problem.
The battery life is pretty good for me. Was out a lot, so had wifi off for large parts.. watched videos (from device), read some books, played some Asphalt (not much.. around 30 mins) and some browsing/mails..
Got 11 hrs screen on over 2.5 days and still have 15% left.
Yeah was indoors so the brightness was never over a third (~30%) and reading books really doesnt drain much battery(especially if its at night and you turn the brightness further down)..
I'm not saying people will get 10+hrs screen on with their device and usage constantly.. 8hrs would be realistic.. but the point is, the battery is a lot better than I had originally expected.

Wotta said:
I ran a wakelock tracker and noticed that Exchange Services has it awake about half the time.
Click to expand...
Click to collapse
I have this same problem - except my GTP is 100% stock, unrooted. I can go into Settings/Battery to see that Exchange Services is chewing my battery. It will die in less than 24 hours, even if I don't use it - as long as it has a WiFi connection. I think if I turn off WiFi, it will stop attempting to sync and the battery will last "normally". I don't know for sure, though, as I haven't tried. I'm not interested in a tablet with no network connection or even without my email.
I'm going to cut a VERY long story short (at least, here) and say that I have spent several hours logging the ActiveSync traffic between my tab and my server, poring over the logs, and I have identified the problem. It's one particular item that is failing to sync, which causes the tablet to retry the sync every 1 second. The sync failure causes the server to log an internal server exception every time - despite the ActiveSync requests from the tablet being correct. I also found a Microsoft KB article that appears to address this exact problem, and MS has a hotfix available for it.
I have talked to Tech Support at my hosted Exchange provider and they have confirmed with their operations staff that my server does not have the MS patch that is referenced in the KB article installed. Unfortunately, they are giving me a bit of the runaround on installing it. I only have one mailbox hosted with them, so I have no pull. They sound like Verizon. "We have to thoroughly test this update in our lab before we can install it on your server." And "nobody else has reported this problem and we can't put too much time into a problem that only one user is experiencing."
So, I am now just waiting for them to install it on my Exchange server and see if it really does fix the problem for me. If it does, I will be posting about it on XDA and the AC forums, as a Google search showed me that a lot of people, with a lot of different Android devices, have this same problem and nobody seems to know what's really going on or how to fix it. I will try to remember to post back in the GTP General subforum specifically, too, so stay tuned.

My battery life seems to be getting better as the battery gets some more charges on it.
Sounds basic / silly, but i simply put mine in battery saver mode and that made a big difference with little effect on performance