Database Users

15 minutes of voice call eats 16% battery =/

I keep hearing some people claim how "great" their Vibrant's battery is. I am on my third Vibrant and battery life has been terrible on all of them. Just recently I noticed ~16% of my battery got drained for ~15 minute voice call. (The attached screenshot shows voice call using 27% but at that time my battery was at around 39%, which means the 15 mins took about ~16% total battery.) I just passed my 14-days buyer's remorse, so exchanging it (unless I want a "like new" one) or returning it are not an option. Any suggestions on how to improve battery life? I already keep the brightness on the screen to the lowest it gets.
Thanks!

Hmm that defintely is not normal. I would check with the store in getting another replacement. 15% drain on 15 min call is not normal for any phone.

There is a bug where if you power down the phone while it's charging, then the reported battery % is higher than actual. Perhaps the seemingly fast drain is a result of the reported value "catching up" to the actual level.

Edit: So I figured out where you're getting your numbers .
Still doesn't seem right though, did you notice the battery percentage before the call by any chance?

Chalup said:
There is a bug where if you power down the phone while it's charging, then the reported battery % is higher than actual. Perhaps the seemingly fast drain is a result of the reported value "catching up" to the actual level.
Click to expand...
Click to collapse
My rooted G1 had that same bug. Start charging it, power it down, power up and from completely dead it would show around. 24% in a couple minutes of charging. This phone I've noticed does it as well as newer blackberry's. Bizarre...
What I would suggest is draining the battery till it dies, charge it back up fully and see if you can have it happen again. Could've been a fluke.
Sent from my awesome Vibrant using XDA App

DarkAgent said:
I keep hearing some people claim how "great" their Vibrant's battery is. I am on my third Vibrant and battery life has been terrible on all of them. Just recently I noticed ~16% of my battery got drained for ~15 minute voice call. (The attached screenshot shows voice call using 27% but at that time my battery was at around 39%, which means the 15 mins took about ~16% total battery.) I just passed my 14-days buyer's remorse, so exchanging it (unless I want a "like new" one) or returning it are not an option. Any suggestions on how to improve battery life? I already keep the brightness on the screen to the lowest it gets.
Thanks!
Click to expand...
Click to collapse
looks like a bad battery reading to me.
Complete charge, complete discharge, and complete charge should reset it.

Yeah the percentages do need to be calibrated and sometimes they are off a bit, say 100%-90% actually often goes faster than 80%-70%.
The batteries are also partly responsible since discharge Ah is not a completely linear relationship with voltage (which is why the percentages need calibration).
I would say unless you have a rogue application on your phone eating battery it is more likely just how it is being reported.

bchalk said:
Yeah the percentages do need to be calibrated and sometimes they are off a bit, say 100%-90% actually often goes faster than 80%-70%.
The batteries are also partly responsible since discharge Ah is not a completely linear relationship with voltage (which is why the percentages need calibration).
I would say unless you have a rogue application on your phone eating battery it is more likely just how it is being reported.
Click to expand...
Click to collapse
So if battery A has x% greater mAh than battery B it does not mean A has x% greater battery life?

Chalup said:
So if battery A has x% greater mAh than battery B it does not mean A has x% greater battery life?
Click to expand...
Click to collapse
Yes, if the phones are identical.
Sent from my SGH-T959 using XDA App

I'm having same issue. Battery life on my Vibrant is just horrible. I can barely go half a day until it's fully discharged and that's about 30 min talk time an hr maybe browsing apps and internet and a little WIFI/BT. Just for example I charged it after complete discharge and took it out at 11.30 pm last night, drove my brother to the airport and back around 1.30 and while it was sitting in the car and a few calls I made, it already went down to 74%, I purposely left it without charge till morning.... at 8am it was showing 47%... WTF!!
I have rooted the phone with update.zip, I have installed ATK and have Crazy settings on it.... one thing I don't get is that after it kills apps, they keep coming back every few seconds. Also brightness is at the lowest and no live wallpaper...
UltimateJuice by the way is showing 1.58 times, which is BS... right now it's 10.30AM and its down to 38%....
Any help would be appreciated!

Try not using atk

Chalup said:
Try not using atk
Click to expand...
Click to collapse
This
Sent from my SGH-T959 using XDA App

http://phandroid.com/2010/08/25/dro...roid-phone-battery-life-comparisons/#comments
Vibrant's battery life does suck, even with the supposedly power efficient processor and super amoled!!!!!!
Samsung has some more work to do. Hopefully, the froyo update can alleviate the problem!!!

M5devil said:
I have rooted the phone with update.zip, I have installed ATK and have Crazy settings on it.... one thing I don't get is that after it kills apps, they keep coming back every few seconds. Also brightness is at the lowest and no live wallpaper...
UltimateJuice by the way is showing 1.58 times, which is BS... right now it's 10.30AM and its down to 38%....
Any help would be appreciated!
Click to expand...
Click to collapse
Read this first.
http://android-developers.blogspot.com/2010/04/multitasking-android-way.html
Anytime the screen is on its eating battery. We have the best screen in the market. If you really want a conservative wallpaper use something almost all black or solid black. When a AMOLED screen is displaying black the LEDs are off.
For those "apps that keep showing up" those are due services that are running in the background. If you don't use the app often set the notifications to a lower time or set it to update manually.
If you've rooted there is a thread on "how to keep your phone quick and snappy" read it. Also fix your permissions through recovery. Rogue apps apps can drain battery.
after 3hrs of on & off hard using (minus extra long phone calls >45mins) I can pull 12-16 hours easily on one charge.
Look into things like eugenes vibrant 6 & JACs UV(under volted) kernel.
GL and car chargers are awesome!
Vibe the XDApp

Battery life on my Vibrant has been superb. You might need to change settings or something. This screen shot was for today with lots of calls and market shopping and I even watched a movie. I do not use a killer, yes I'm rooted with lots of tweaks to my notification bar. I'm using the spiritbomb lwp and its been great.
Sent from my SGH-T959 using XDA App

Unfortunately, the battery life on the Vibrant just sucks, compared to the iPhone.
I came to a Galaxy S and a Vibrant form the iPhone 3Gs.
With the same style of usage, the iPhone lasts at least 40% longer than the Galaxy/Vibrant.
I like the phone a lot, but am really unhappy to have to constantly think about how I use it, to avoid it dying on me before the end of the day.
Basically, with moderate use, it will last for a day, but if I go out after work and do a little texting or take a few pictures, it will die before I get home.
12-14 hours is really not good, since with my old iPhone I used to be able to last almost two full days without recharging.
Plus, the blocking of the camera at 15% of battery life is a truly idiotic decision by Samsung.

Thanks for your feedback! I am newbie in the Android world, as I come from the Apple planet. It just takes time to get used to it.
As for XDA App, where can I get it?

jesrazo said:
Battery life on my Vibrant has been superb. You might need to change settings or something. This screen shot was for today with lots of calls and market shopping and I even watched a movie. I do not use a killer, yes I'm rooted with lots of tweaks to my notification bar. I'm using the spiritbomb lwp and its been great.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
I am looking into the mod for the notification bar, specifically the battery. I have seen a circle battery with percentage, where do I get one?

XDA is your Friend
Search XDA for all ur app and theme needs, as for the Iphone being better on battery. I dont doubt its better, but from my experience and many family and friends showing me there iphones they are always tethered to a power source. Theres no better test than driving 300+ miles a day every day and coming back to the hotel and seeing my phone tell me i have been using it for 20+ hours and i still have 25% charge. I am constantly using my phone for calls, text, movies and such. Without my phone my wife would probably divorce me lol The amount of travel i do via plane, train and automobile is all the real world facts i need. Vibrant is a keeper.

Yes it sucks.
And under 15% it's not allowing me taking pictures!
Come on, I know I am under 15%, but I still want to take 1 or 2 pic!!

Help, my battery life sucks!

Hi,
I unplugged my phone this morning around 9 A.M, and sent about 50-100 texts today, and right now at 5:35 my phone is at 33%. The only thing that is running, is ADW.Launcher, and I've done LIGHT Twitter/Facebook checking throughout the day, maybe about 2-3 times each. I have Beautiful Widgets, but it's set to update every hour. I haven't talked on the phone at all, and my brightness is set to auto. My wifi is off, and I made sure I don't have GPS or anything on. What's killing my battery? My BB's battery life was 1000x better, I shouldn't have to baby this phone to have it make it through the day.
I'm running JT's Clean D101 rom, and that's it.
Edit - 32% now.

Get "OSMonitor" from the market (its free) and it will give you a real time display of all running processes and cpu % for each process. To make it easier to watch list open options in OSMonitor and sort by load and make sure order is checked as well. And watch the list for a couple of minutes to see the offender that is hogging the cpu. I've had problems with the xda app and I seem to be the only one that has it hammer the cpu after closing it so I always have to kill the xda app in task manager after using it or else it will ride the cpu between 8-20%.
My typical idle cpu usage is about 2-5% not including the cpu usage of OSMonitor itself.
good day.

lolreconlol said:
Hi,
I unplugged my phone this morning around 9 A.M, and sent about 50-100 texts today, and right now at 5:35 my phone is at 33%. The only thing that is running, is ADW.Launcher, and I've done LIGHT Twitter/Facebook checking throughout the day, maybe about 2-3 times each. I have Beautiful Widgets, but it's set to update every hour. I haven't talked on the phone at all, and my brightness is set to auto. My wifi is off, and I made sure I don't have GPS or anything on. What's killing my battery? My BB's battery life was 1000x better, I shouldn't have to baby this phone to have it make it through the day.
I'm running JT's Clean D101 rom, and that's it.
Edit - 32% now.
Click to expand...
Click to collapse
Thats about normal time for a Smartphone. If you average that you used 66% of your battery in 8.5 hours, then its safe to say your battery is averaging 12 hours a day. Also, most of your battery will go to your display, and if you texting all morning, your display is going to be on all morning.
It also could be that your in an area with bad signal. Your phone is going to pump juice to try and keep signal.
As far as BlackBerry gos, its not nearly as smooth and capable. I could argue my flip phone from high school lasted four days without needing to be charged. Android is in an entirely different class than BlackBerry.

Is there a definitive process for conditioning or reconditioning the stock battery? I'm on my second fascinate(vzw replaced first one basically because of my frustration with the local vzw store) & I've noticed a big difference in battery life between the 2. First one was completely stock with adw launcher only & it got 16-20 hrs between charges. This one is rooted, some bloat removed, and I only get 8-10 hrs. Using os monitor to look for cpu hogs & so far no improvement. Put all my bloat file extensions back to stock in sys/app hoping to impact erratic charging cause it all started after root. Any ideas?
Sent from my SCH-I500 using XDA App

I'm no expert (standard disclaimer) but I don't think it's a matter of calibrating the battery as much as calibrating the software.
Power the phone down
Charge to 100%
Boot into CWM
Wipe Cache
Go into Advanced, and Wipe Battery Stats
Pull the battery, reinsert, and again charge until have 100%
Unplug, reboot, and run the phone in whatever your normal use is until you get as close as you can to a full discharge
Again power down and charge to full
As I understand it, this process allows the software to correctly read the true charge on the battery. if anyone sees any flaws with this, or anything incorrect in my information, please advise.

Are you using a Live wallpaper? I noticed an increase in my battery life after I turned it off, which is kind of stupid because it should only use CPU cycles when the screen is turned on.

ilogik said:
Are you using a Live wallpaper? I noticed an increase in my battery life after I turned it off, which is kind of stupid because it should only use CPU cycles when the screen is turned on.
Click to expand...
Click to collapse
Yep, just the stock n1 style that came with the phone. I liked it since I first saw it & have used it the whole time, even before battery issue.
Sent from my SCH-I500 using XDA App

ilogik said:
Are you using a Live wallpaper? I noticed an increase in my battery life after I turned it off, which is kind of stupid because it should only use CPU cycles when the screen is turned on.
Click to expand...
Click to collapse
Sending 50 to 100 texts pretty much insures your screen is staying on lol.
Sent from my SCH-I500 using XDA App

lolreconlol said:
and my brightness is set to auto.
Click to expand...
Click to collapse
This could be a big offender right here. Use the power control widget and keep it on the lowest brightness except for when you're in areas that make the screen too dim to make out (read: outside).

Thanks to Daswolven. Recalibrating the battery did the trick. The only thing I can link the issue to is having to charge from my laptop for 3 days last week due to a massive power outage in my area. Anyone else see this?
Sent from my SCH-I500 using XDA App

garywojdan81 said:
Thanks to Daswolven. Recalibrating the battery did the trick. The only thing I can link the issue to is having to charge from my laptop for 3 days last week due to a massive power outage in my area. Anyone else see this?
Sent from my SCH-I500 using XDA App
Click to expand...
Click to collapse
Glad to help.
Sent from my SCH-I500 using XDA App

Unique Battery problem

Sorry to start another thread on battery issues but I was unable to find a scenario like mine.
Hey everybody, Im new to the android scene, just got my vibrant less than a month ago. Before that I had an Iphone 3g. So far I like the phone but the battery life is horrible. When I surf the internet on wifi or 3g I noticed that I use like 3-5% in a matter of 5 mins. Is this normal? I consider myself to be a light-moderate user and have been getting and average of 12 hours or so on my vibrant. Also if it makes any difference when my phone is idle or being used my temperature runs around the high 80's low 90's but when being charged it drops to the low 80's or high 70's. What is going on? How can I get more 20 hours on my phone? With the iphone I used to get an easy 15 hours and still have like 40-50% remaining.

aamir123 said:
Sorry to start another thread on battery issues but I was unable to find a scenario like mine.
Hey everybody, Im new to the android scene, just got my vibrant less than a month ago. Before that I had an Iphone 3g. So far I like the phone but the battery life is horrible. When I surf the internet on wifi or 3g I noticed that I use like 3-5% in a matter of 5 mins. Is this normal? I consider myself to be a light-moderate user and have been getting and average of 12 hours or so on my vibrant. Also if it makes any difference when my phone is idle or being used my temperature runs around the high 80's low 90's but when being charged it drops to the low 80's or high 70's. What is going on? How can I get more 20 hours on my phone? With the iphone I used to get an easy 15 hours and still have like 40-50% remaining.
Click to expand...
Click to collapse
Try a different rom?
Sent from my SGH-T959 using XDA App

When I first got the vibrant, it had pretty bad battery life, I would lose like 25% while sleeping 8-10 hrs. So light usage would be like a day. Slowly I started to get longer battery life (2 days on light usage). Recently I could get up to like 3.5 days on real light usage. After updating to JI6, max I can get now is like 3 days. I didn't really do much and I tripled my battery life by just giving it time.

Thanks burntrat I guess ill be patient. And I must mention that I am running stock.i was just worried because my battery temperature gets colder when charging and warmer when idle or running.

burntrat said:
When I first got the vibrant, it had pretty bad battery life, I would lose like 25% while sleeping 8-10 hrs. So light usage would be like a day. Slowly I started to get longer battery life (2 days on light usage). Recently I could get up to like 3.5 days on real light usage. After updating to JI6, max I can get now is like 3 days. I didn't really do much and I tripled my battery life by just giving it time.
Click to expand...
Click to collapse
Hey burntrat or anybody, has your battery ever acted sort of schizophrenic on you? I mean one day I leave it on standby and its drains like 1% in 7-10 hours another day I leave it on standby and it drains 18% in about 4 hours. Whats going on?

aamir123 said:
Hey burntrat or anybody, has your battery ever acted sort of schizophrenic on you? I mean one day I leave it on standby and its drains like 1% in 7-10 hours another day I leave it on standby and it drains 18% in about 4 hours. Whats going on?
Click to expand...
Click to collapse
It happens
If ur super concerned get these 2 apps
~juice defender
~ super power

My battery has been draining inconsistently lately. It drains faster in the 50-100% level. Under 50%, it feels like it drains slower while doing the same stuff.

xriderx66 said:
It happens
If ur super concerned get these 2 apps
~juice defender
~ super power[/QUOTE
Juice defender doesnt work for me, but ill have to try superpower, anyways I just feel that its weird that without anything changing, my battery drains differently on different days. Burntrat I think thats normal for every phone, the last 50% always seem to drain slower.
Click to expand...
Click to collapse

if your phone is draining a lot during standby or sleeping. There may be a rogue app out there or an app that didnt shut down properly. (I guess that would mean a rogue app)

ELStiko said:
if your phone is draining a lot during standby or sleeping. There may be a rogue app out there or an app that didnt shut down properly. (I guess that would mean a rogue app)
Click to expand...
Click to collapse
nope task manager shows everything as clear, and if I have a rogue app why is it acting up one day and not the other? Btw it seems to skip a daybetween bad battery life

aamir123 said:
nope task manager shows everything as clear, and if I have a rogue app why is it acting up one day and not the other? Btw it seems to skip a daybetween bad battery life
Click to expand...
Click to collapse
I had the same problem, stock task manger doesn't show all of the apps.
Check ur services, go to settings apps manage apps running applications.
Or instead of that I brought the advanced task killer back to check on things

@aamir123 and burntrat: maybe you guys need to calibrate your battery? Also the stock rom usually has a lot of bloatware running in the background. Flashing a custom rom oughta do the trick.
Sent from my SGH-T959 using XDA App

chikin said:
@aamir123 and burntrat: maybe you guys need to calibrate your battery? Also the stock rom usually has a lot of bloatware running in the background. Flashing a custom rom oughta do the trick.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
How do you recalibrate the battery?
Sent from my SGH-T959 using XDA App

Try this. Download the system panel app from the market. You can set it to monitor your system and it will chart what applications are running and how much they are using the cpu. If you find you have some unnecessary bloatware running in the background download titanium backup and freeze those apps.

hitman818 said:
How do you recalibrate the battery?
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
There are a lot of different ways mentioned in different forums. Try this:
Let your battery drain all the way to the point when it turns off by itself.
Charge it while its off until its full.
Unplug it, turn the phone on, then plug it in again.
After it reaches 100, unplug the charger and turn your phone off.
Once off, plug it in and let the charging complete.
Once complete, unplug it and turn the phone on. When everything has loaded, turn the phone off (note: no charging involved in this step.)
After it turns off, charge it one last time until 100%. After this, go into recovery and clear battery info (or cache, I forget). There you go
Oh, and its better if you don't download too many apps that monitor battery usage, cpu etc. cuz they will contribute to the battery consumption.
Sent from my SGH-T959 using XDA App

chikin said:
There are a lot of different ways mentioned in different forums. Try this:
Let your battery drain all the way to the point when it turns off by itself.
Charge it while its off until its full.
Unplug it, turn the phone on, then plug it in again.
After it reaches 100, unplug the charger and turn your phone off.
Once off, plug it in and let the charging complete.
Once complete, unplug it and turn the phone on. When everything has loaded, turn the phone off (note: no charging involved in this step.)
After it turns off, charge it one last time until 100%. After this, go into recovery and clear battery info (or cache, I forget). There you go
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
It isn't a good idea to let your battery drain all the way to zero since it is lithium ion. I think skipping that part and just charging it when it's on to full, then off to full, then on to full, then off to full and then wiping battery stats would suffice. Also you need to have clockwork recovery to wipe battery stats.

jimmynguyen91 said:
It isn't a good idea to let your battery drain all the way to zero since it is lithium ion. I think skipping that part and just charging it when it's on to full, then off to full, then on to full, then off to full and then wiping battery stats would suffice. Also you need to have clockwork recovery to wipe battery stats.
Click to expand...
Click to collapse
When the phone turns off by itself, the battery still has some juice left in it to prevent it from losing the ability to charge, if that's what you meant by not a good idea cuz its lithium ion. If thats not what you meant, then please explain why.
Sent from my SGH-T959 using XDA App

burntrat said:
When I first got the vibrant, it had pretty bad battery life, I would lose like 25% while sleeping 8-10 hrs. So light usage would be like a day. Slowly I started to get longer battery life (2 days on light usage). Recently I could get up to like 3.5 days on real light usage. After updating to JI6, max I can get now is like 3 days. I didn't really do much and I tripled my battery life by just giving it time.
Click to expand...
Click to collapse
Agreed. In my case, I barely lasted 12 hours on moderate use with any of the JI6 2.1 ROMS (Eugene's, Bionix, Fusion, etc). I think after I updated to 2.2, all of the ROMS have been giving me 18+ hours on moderate-heavy use no matter what modem or kernel I use.

So where is the "unique" problem?

jimmynguyen91 said:
It isn't a good idea to let your battery drain all the way to zero since it is lithium ion. I think skipping that part and just charging it when it's on to full, then off to full, then on to full, then off to full and then wiping battery stats would suffice. Also you need to have clockwork recovery to wipe battery stats.
Click to expand...
Click to collapse
This is true.
Try this, it helPed, me get like 10 more hours.
Charge till 100.
Shut down
Plug in usb until the green battery shows up and says completed our something.
Reboot
Charge for5 minutes.
Reboot
Done.

did anyone "calibrated" their nexus?

I'm moderately using the nexus and only getting 5ish hours of screen time with brightness halfway. And people been saying that they get 7+ hours.
If you happen to be one of those people, did you calibrated yours? And how do you do it? I heard you have to drain the battery and then charge it back up. Does it work? Or is it just a myth?

They are many variables involved here beyond screen brightness. You are not going to hard core game for 7 hours out do anything that has CPU/GPU running high.
I keep my brightness set to auto.. Half way seems way to bright to get any decent battery life.
Sent from my Nexus 7 using xda app-developers app

pham818 said:
I'm moderately using the nexus and only getting 5ish hours of screen time with brightness halfway. And people been saying that they get 7+ hours.
If you happen to be one of those people, did you calibrated yours? And how do you do it? I heard you have to drain the battery and then charge it back up. Does it work? Or is it just a myth?
Click to expand...
Click to collapse
I get about the same battery life on 50% brightness
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

About 6 hours of use. If I let it sit I get a day of standby.
Games, Internet, and netflix kill the life for me.
Last week I took it to work and forgot my plug. I watched Netflix on the battery for about 4 and a half hours. It was at 8% when I left.
Avg of 6 seems the norm. /shrug

That seems about right actually at 50% brightness. I keep mine on auto but it is usually at about 10-15% brightness and I can get 6 hours all day long over a bay or two of the charger
Sent from my Nexus 7 using Tapatalk 4

Richieboy67 said:
They are many variables involved here beyond screen brightness. You are not going to hard core game for 7 hours out do anything that has CPU/GPU running high.
I keep my brightness set to auto.. Half way seems way to bright to get any decent battery life.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
I barely game on mine.

pham818 said:
I'm moderately using the nexus and only getting 5ish hours of screen time with brightness halfway. And people been saying that they get 7+ hours.
If you happen to be one of those people, did you calibrated yours? And how do you do it? I heard you have to drain the battery and then charge it back up. Does it work? Or is it just a myth?
Click to expand...
Click to collapse
From initial setup (battery came at 62%) I let it completely die and then proceeded to do an initial battery charge cycle (charged it for 6 hours). After which I put it on the charger at about 14% which is normally right as I go to bed for regular charge cycles.
As for my battery life, I get an average 8 hours screen time while doing heavy gaming, watching Netflix/Youtube, listening to music, reading, and lastly browsing the web. As for standby time 3 days on battery on average (with Wi-Fi off during Sleep and always scan for Wi-Fi off).
This is with auto-brightness as I've found zero need to adjust it save for a few occasions I had to raise it for a few minutes while outdoors. If you want great battery life, leave the Nexus to it's own devices It knows how to handle it's brightness; very well I might add.
Granted your mileage my vary drastically as my Nexus 7 was flawless when purchased with zero of the known issues. (It also brought me to this lovely forum. )

Realistically you only need like 10-25 percent brightness on this thing at most times. This thing goes really bright.
Sent from my Nexus 7 using xda premium

auto brightness

About 10Hours of battery life.
Get about ten hours of battery life. I have brightness set to half. The real part that was saving me battery is the advanced wifi settings. I set it so that it never searches or keeps wifi on when sleeping. Also manually turn off wifi when I don't have coverage. I use alot of YouTube, internet and Netflix.

Battery Life Worry/Question

My battery life has been pretty good. However, the number one thing consistently using battery is "Android System". Is this normal? Thanks!

Same here. On all my other Android phones Screen is the top user.

U are using ips technology on the screen unlike amold that saamy used which kills the battery in hours in full brightness . As you could see that the iPhone has good batttery life because the 720p ips screen.
Sent from my LG-D801 using XDA Premium 4 mobile app

I've found that rebooting the phone after taking it off of charge, the battery life is awesome. There seem to be some wakelocks that kill the battery and for some reason, charging has something to do with it.

I don't know if this is why, but I heard the G2 has special screen technology that greatly reduces battery drain.
Sent from my VS980 4G using Tapatalk 4

Those claiming that Android System > Screen for battery use on the G2...I'm coming from a Nexus 4 which is also IPS.

jesssiii said:
I don't know if this is why, but I heard the G2 has special screen technology that greatly reduces battery drain.
Sent from my VS980 4G using Tapatalk 4
Click to expand...
Click to collapse
Yeah, somthing about 30% lower battery use or something like that. It's 6 hours since I took mine off the charger, must admit very moderate use, some toying, some photos, some mails and 1 phone call. but still, my phone is at 96% battery. My old S2 would be at 60% at this point.

kayrune said:
Yeah, somthing about 30% lower battery use or something like that. It's 6 hours since I took mine off the charger, must admit very moderate use, some toying, some photos, some mails and 1 phone call. but still, my phone is at 96% battery. My old S2 would be at 60% at this point.
Click to expand...
Click to collapse
What's your highest battery user?
I'm at 93% after 5 hours with only a dozen SMSes, an IMAP push account with a few emails, and 2 other pop accounts, very light use...Android System is 34%, Screen 21%.

Mize said:
What's your highest battery user?
I'm at 93% after 5 hours with only a dozen SMSes, an IMAP push account with a few emails, and 2 other pop accounts, very light use...Android System is 34%, Screen 21%.
Click to expand...
Click to collapse
System was 30, Screen was 28

FredWorrell said:
I've found that rebooting the phone after taking it off of charge, the battery life is awesome. There seem to be some wakelocks that kill the battery and for some reason, charging has something to do with it.
Click to expand...
Click to collapse
I tried this and it worked. However, one instance is not proof I guess haha. I will experiment more tomorrow (namely, not rebooting after charging) and let you know what I find. I wonder what specifically about charging may cause wakelocks?

Over 48 hours of use, more than 50% battery left. 3,5 hours screen time. Android system worst offender with 35%, screen 2nd with 25%.
Sent from my LG-D802 using Tapatalk 4

If you look at the programs listed under Android System, try uninstalling the ones that you would never use. This has seemed to help me. But to be honest it was kind of unnessary because the battery life is just crazy badass. In a few weeks or so when the devs have there way this phone is going to be epic.

It is two things, which by the way are great news.
A) LG's screen tech which doesn't refresh pixels when the images are static
and B) IPS
What we can't control is screen power consumption, but guess what? We can control android system consumption through kernels and roms. This means that we can *hopefully* expect EVEN BETTER! battery life since the screen is, for 80% of users, the main culprit for energy drain.

Just a quick note that flashing CleanROM on my ATT LG G2 basically took my battery life from <20% at the end of the workday to just under 80% at the end of the work day with increased use on the CleanROM install. Highly recommended.

Been off the charger since 6:50 this morning. Sitting here at work doing some texting, Words With Friends, and a test call for a co-worker...96% at 12:15pm. My Nexus would have been at 40% by now.

So is Android System different from Android OS?
I normally can squeeze out 15-22 hours since installing Snapdragon Battery Guru. Which has been working great until today.
Here's my situation today:
-100% charge at around 1230am. Light to moderate usage leaves me with
-77% between night before and waking up (only dropped like 2% overnight) at
-830, then i worked from 9 to 1230 so i didnt use my phone too much. But since ive been off work ive been using it more so im not too surprised about my low battery level currently.
But what concerns me is Android OS using half my battery! It says its been active for more than 4 hours and i dont understand where it comes from. Its way more than my screen usage even with a screen time of little over 3 hours.
Anyone know whats up with Android OS? It doesnt tell me what is running when i select it so im lost.
Also ive done many of the suggestions in this thread with positive results. Ive been monitoring my wakelocks and since doing some of the suggestions on here nlpcollector has actually gone down.
Sent from my LG-D800 using xda app-developers app

amazing battery life
osiris010 said:
So is Android System different from Android OS?
I normally can squeeze out 15-22 hours since installing Snapdragon Battery Guru. Which has been working great until today.
Here's my situation today:
-100% charge at around 1230am. Light to moderate usage leaves me with
-77% between night before and waking up (only dropped like 2% overnight) at
-830, then i worked from 9 to 1230 so i didnt use my phone too much. But since ive been off work ive been using it more so im not too surprised about my low battery level currently.
But what concerns me is Android OS using half my battery! It says its been active for more than 4 hours and i dont understand where it comes from. Its way more than my screen usage even with a screen time of little over 3 hours.
Anyone know whats up with Android OS? It doesnt tell me what is running when i select it so im lost.
Also ive done many of the suggestions in this thread with positive results. Ive been monitoring my wakelocks and since doing some of the suggestions on here nlpcollector has actually gone down.
Sent from my LG-D800 using xda app-developers app
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Click to collapse
Just to benchmark .... I used the phone moderatley ..
I did.. a little over 50 hours of total on time
4.75 hours of on screen time,
2 hours of spotify with bluetooth for the entire time,
2 hours of MapMyRun with GPS running ..
then various text messaging and a couple phone calls
The only modifications i've made to the stop experiance is taking of google's location service for programs, but leaving GPS active .. and changing the screen to auto-brightness, baseline of 50%.
I came from the SGS2 ..... with 1 hour of on screen time and the other spotify and bluetooth .. i'd be around 10-20% after 8-10 hours !!!!!

Mines pretty awesome.
Sent from my LG-D800 using Tapatalk 2

I'm not sure if my battery is defective or not. Right out of the box was around 75% and I drained it until it turned off then charged it to full.
Over the next few days at work it's on wifi and then on 3G/4G before /after work. I pull it from the charger at 7:30am and by 7pm its at 40%. Then on Friday night I unplugged it at 12am with 100% and woke up the next day with 80%. It's dropping like 1% about 10-15minutes. Would a factory reset fix the battery drain? or call for a replacement?

marcusrab said:
Just to benchmark .... I used the phone moderatley ..
I did.. a little over 50 hours of total on time
4.75 hours of on screen time,
2 hours of spotify with bluetooth for the entire time,
2 hours of MapMyRun with GPS running ..
then various text messaging and a couple phone calls
The only modifications i've made to the stop experiance is taking of google's location service for programs, but leaving GPS active .. and changing the screen to auto-brightness, baseline of 50%.
I came from the SGS2 ..... with 1 hour of on screen time and the other spotify and bluetooth .. i'd be around 10-20% after 8-10 hours !!!!!
Click to expand...
Click to collapse
wow that's really amazing. ill try that out and disable google location services and see what happens. will that interfere with google now? i mean i would totally sacrifice google now for 50 hours though.
Sent from my LG-D800 using xda app-developers app