Battery life - Acer Iconia Tab A100

How is your A100 battery life?
I've heard its pretty bad from multiple people.
Sent from my SPH-D700 using Tapatalk

I've had mine now for a couple of days now and can report that battery life indeed is rather crappy. After an hour and a half or so of intensive use watching youtube, playing games, etc. the battery can go from 100% to 60%. Casual use reading books and with wifi off seems to drain the battery much more slowly.
Nevertheless, I like it much better than my iPad (which has a much better battery life) because it's pocketable (for large pockets) and I'll probably be mostly using it for an ebook reader. The form factor is perfect for this.
I would say if you're into heavy gaming / movies, and take lots of long flights then avoid this at all costs, otherwise it may not be that bad depending on your usage. For me it's not such a big deal.

zanderman112 said:
How is your A100 battery life?
I've heard its pretty bad from multiple people.
Sent from my SPH-D700 using Tapatalk
Click to expand...
Click to collapse
Well multiple informed you wrong. Is it the best out there in the terms of battery life? No, but I get a full day out of it without a problem. I use it to surf the web, play music, a few games, tether to my phone via bluetooth for texting, etc...
If I used it nonstop I would guess that it lasts 6-7 hours with the screen on, longer when the screen is off playing music.
I also have a Nook Color and I would have to agree the battery is slightly less then the Nook but the device is much more powerful as well. The Nook's standby time is much better then the a100 but if it is used they are comparable with the Nook getting a slight edge.
A lot of people complain if they have to charge the device every night, I say so what. I also have to charge my phone every night. I have both chargers next to my night stand and when I go to sleep I am not using them so let them charge for the next day.
The WiFi and the GPS are the biggest drain during idle times I have my WiFi set to turn off with the screen. The GPS hunts for a lock all the time. I fixed it by replacing the GPS config file with one found on XDA that allows for a faster lock.
The only downfall I have with this device is the lack of a recovery or custom rom development. I hope that by the time ICS is released we have a upgrade path to install it.

painter_ said:
Well multiple informed you wrong. Is it the best out there in the terms of battery life? No, but I get a full day out of it without a problem. I use it to surf the web, play music, a few games, tether to my phone via bluetooth for texting, etc...
If I used it nonstop I would guess that it lasts 6-7 hours with the screen on, longer when the screen is off playing music.
I also have a Nook Color and I would have to agree the battery is slightly less then the Nook but the device is much more powerful as well. The Nook's standby time is much better then the a100 but if it is used they are comparable with the Nook getting a slight edge.
A lot of people complain if they have to charge the device every night, I say so what. I also have to charge my phone every night. I have both chargers next to my night stand and when I go to sleep I am not using them so let them charge for the next day.
The WiFi and the GPS are the biggest drain during idle times I have my WiFi set to turn off with the screen. The GPS hunts for a lock all the time. I fixed it by replacing the GPS config file with one found on XDA that allows for a faster lock.
The only downfall I have with this device is the lack of a recovery or custom rom development. I hope that by the time ICS is released we have a upgrade path to install it.
Click to expand...
Click to collapse
+1 from me. Literally everything painter said, is what I find as well. 6 to 7 hours of constant use might be pushing it though. I'd guess it's more like 5 to 6. Maybe I just use the backlight set a bit higher.
And yes, the GPS on this thing KILLS the battery really really fast.
Painter, what's the link to the replacement config file?

Yeah, I also have the same feelings for the battery life. Sure, it could be better, but it will last me all day of on and off use. It might be a pain for traveling, but so far, it has served me well.
I don't have a problem with the GPS it only turns on for specific apps but it never just randomly tries to find my location.

I wish the battery was better, but it took my son over 5 straight hours to kill it playing games nonstop. I leave the gps toggled off. For regular use, it will run pretty much all day.
Sent from my Gummy Charged GBE 2.0 using xda premium

i get 5½ hours on mine. Normal to heavy use. Games movies web on.

That's what I thought. Okay, thanks guys.
Sent from my SPH-D700 using Tapatalk

zanderman112 said:
That's what I thought. Okay, thanks guys.
Sent from my SPH-D700 using Tapatalk
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Click to collapse
So is this good news or bad news to you? I'm just curious if this convinced you to buy the tablet, or that the A100 is not fir you.

Its not fit for me. My phone gets better life.
Sent from my SPH-D700 using Tapatalk

rcummings100 said:
Painter, what's the link to the replacement config file?
Click to expand...
Click to collapse
I think that this was the one. There are many gps fixes on XDA. Search for gps.conf for instructions. I was looking for a fix for my phone and put the file on my A100 also. fixed it right up.

Painter, could you upload your gps.conf or cut and paste the contents? I tried the one at the link and it didn't seem to help.

Here is the one that I am using.
1) download the attached file.
2) rename the file to gps.conf
3) put the file on your tablet using adb or root explorer
3a) adb method.
adb shell "mount -o remount rw /system"
adb push gps.conf /system/etc/
reboot the tablet​3b) use root explorer to copy the file to /system/etc and reboot the tablet.
4) make sure the clock on your tablet is correct. ( I use clocksysc from the market )
5) install GPS Status from the market.
6) start GPS status. ( the GPS antenna seems to work best if the tablet is held with the SD card slot up. ) It may take a while to get a lock the first time but after the first time the lock will be much faster after that.

Wrong forum. I delete my post.
Sorry

frenchgege said:
About battery life...
I have a 80G9 Turbo with HDD.
I recently removed the 256GB internal hard drive, and replaced it with a SSD.
I choose a Samsung 840pro (7mm) 128GB, because it has a very low consumption (256GB SSD was too expensive...)
A little difficult to do, and I was afraid to break my machine (and the warranty is lost!) , but now I successfully increased my battery life.
Before it was less than 6 hours (intensive), now i can work for 7 hours or more
(But no real speed increase...)
Click to expand...
Click to collapse
I think you're talking about an Archos...
Wrong forum mate.
Sent from my Galaxy Nexus using xda app-developers app

Oups... Yes, wrong forum (Archos)... I am sorry.

Related

Bad batter

this phone sucks, you will have a huge screen but with automatic lighting seems drawn on cardboard, the reception is crap, my girlfriend with a lg optimus one has 3 notches and I travel to 1 here in the bedroom. And the absolute most ridiculous thing is the battery, are practically forced to go out with this and the galaxy's, fortunately, not yet sold, it takes at least 2 refills daily. Check it out and tell me if it does not sell a phone like this ****.
http://i.imgur.com/clwLJ.png
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sell it
(im just writing this stuff here because of the too short rule)
gianfy.c said:
this phone sucks, you will have a huge screen but with automatic lighting seems drawn on cardboard, the reception is crap, my girlfriend with a lg optimus one has 3 notches and I travel to 1 here in the bedroom. And the absolute most ridiculous thing is the battery, are practically forced to go out with this and the galaxy's, fortunately, not yet sold, it takes at least 2 refills daily. Check it out and tell me if it does not sell a phone like this ****.
http://i.imgur.com/clwLJ.png
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Click to expand...
Click to collapse
Congratulations on a useless post.
If that's the only battery life you're getting then you should really look at how you have your device set up. I easily get 12-15 hours on heavy use and more than 24 hours on light use (moderate use is somewhere in between). I use auto brightness, and keep bluetooth, gps, and wifi turned on all the time. I have facebook syncing and push email going and I have no battery issues at all. I suggest you take a look at your device configuration and also you may need to calibrate your battery.
mysterioustko said:
If that's the only battery life you're getting then you should really look at how you have your device set up. I easily get 12-15 hours on heavy use and more than 24 hours on light use (moderate use is somewhere in between). I use auto brightness, and keep bluetooth, gps, and wifi turned on all the time. I have facebook syncing and push email going and I have no battery issues at all. I suggest you take a look at your device configuration and also you may need to calibrate your battery.
Click to expand...
Click to collapse
so you are suggesting to turn wifi,bluetooth and gps on all the time for better battery life? really?
Mine is currently on 1day and 7hours on battery, still with 30% left. You need to set it up properly mate..
flameinthefire said:
so you are suggesting to turn wifi,bluetooth and gps on all the time for better battery life? really?
Click to expand...
Click to collapse
Nowhere in what I posted did I say that. Try reading with understanding next time. What I said was I have everything turned on and I still get good battery life, so if yours is lacking perhaps you should take a look at how your device is configured. That a bit clearer for you?....
OP, your post has made my day today!
However battery life depends on how your device usage is. People with carefully set usage patterns can extract the most. For e.g. I use Locale to set a certain profile at night that switches off wifi, data usage, etc. That is one way to maximise battery life.
Edited your title to be proper.
Please maintain forum etiquette. You can get the same exact message across using proper language
mysterioustko said:
Nowhere in what I posted did I say that. Try reading with understanding next time. What I said was I have everything turned on and I still get good battery life, so if yours is lacking perhaps you should take a look at how your device is configured. That a bit clearer for you?....
Click to expand...
Click to collapse
ah i see so how is ur device configured exactly? are you rooted? because im not getting good battery life neither
I'm having similar battery issues, a heads up on how to set up the phone for a better battery life would be very much appreciated.
Evileddie said:
I'm having similar battery issues, a heads up on how to set up the phone for a better battery life would be very much appreciated.
Click to expand...
Click to collapse
yea that would be awesome
flameinthefire said:
ah i see so how is ur device configured exactly? are you rooted? because im not getting good battery life neither
Click to expand...
Click to collapse
Okay let me further clarify myself. When I say look at how your device is configured I mean look at what you have running. Do you have things syncing frequently in the background? Do you have apps installed that constantly wake the device? How many background apps are you running at once. I don't have any special configuration on my device. I have everything turned on as far as bluetooth, wifi, and gps. I use push email, facebook set to sync every 4 hours, weather set to sync every 6 hours, google reader set to "download frequently viewed feeds every hour", currents set to sync every 6 hours in the background (wifi only). With those settings my battery life is pretty good. When I'm not using my phone is drains between 2-2.5% battery per hour, that should give you a bit of a point of reference for what you should be getting when idle. Here's an app here I stumbled across that can show you what's waking your device http://forum.xda-developers.com/showthread.php?t=1179809 Hope this helps you out.
Battery is pretty good to me, under normal usage easily over 24hours.
I have had no problems with my battery or screen, not sure where your setup went wrong but listen to the posters before me and less ranting and maybe you'll make the best out of an awesome device
My battery is great! Better than any other smart phone iv used, signal is great swell and the screen is awesome
I love this phone lol
Sent from my Galaxy Nexus using xda premium
gianfy.c said:
this phone sucks, you will have a huge screen but with automatic lighting seems drawn on cardboard, the reception is crap, my girlfriend with a lg optimus one has 3 notches and I travel to 1 here in the bedroom. And the absolute most ridiculous thing is the battery, are practically forced to go out with this and the galaxy's, fortunately, not yet sold, it takes at least 2 refills daily. Check it out and tell me if it does not sell a phone like this ****.
http://i.imgur.com/clwLJ.png
ImageShack® - Online Photo and Video Hosting
Click to expand...
Click to collapse
I see in your screenshot the GPS and the screen were on for most of that time.
And by "on" I mean the GPS was really on with a fix, not just "on standby" and ready to be automatically activated when a program requests it.
No phone I have ever owned has ever got more than about 4 hours from the battery when I have been using the GPS. The simple fact of the matter is the battery will discharge very quickly when using GPS. That's not a fault of the Nexus, that's just how it is.
Bad battery?
That screenshot shows you've been absolutely caning the **** out of your phone. Nothing will have a good battery life with usage like that.
Rusty! said:
Bad battery?
That screenshot shows you've been absolutely caning the **** out of your phone. Nothing will have a good battery life with usage like that.
Click to expand...
Click to collapse
QFT. Almost half of it has been screen on, GPS on. No phone can stand up to that for long.
Cool story.
Sent from my Galaxy Nexus using xda premium

Juice Defender & ICS

Do they play nice together in the G-Nex sandbox ?
You don't need it
Sent from my Galaxy Nexus using xda premium
I remember RAM doubler for computers. This is a long long time ago, it came out in the end, they were just a scam. I don't like software that says it extends memory, battery etc, when it itself sits in memory making threads, taking up memory etc. I might be wrong but smoke n mirrors.
Every time anyone posts a question about JuiceDefender, you will get a bunch of hater replies but, yes, it works fine on the Galaxy Nexus.
Sent from my Galaxy Nexus using Tapatalk
Well .... the naysayers can say what they like. I run it on my Charge and I un-plugged the phone around 11a eastern yesterday @ 100% charge. I used the phone several time yesterday, took and placed calls, read some twitter and facebook, googled some things, it sat overnight on my end table and it was still at 58% charge here @ 7:30 the next morning.
That was un-heard of before I started running JD Ultimate..... Just Sayin .....
If you read how juice defender works, you will understand that it can and does work, but only noticeable improvements come from periods of none use of the phone, longer periods more savings
Works fine with my gnex, get good battery savings on work days, not so much on weekends, all comes down to usage
Rellikzephyr
Sent from my Galaxy Nexus using Tapatalk
spywhite said:
I remember RAM doubler for computers. This is a long long time ago, it came out in the end, they were just a scam. I don't like software that says it extends memory, battery etc, when it itself sits in memory making threads, taking up memory etc. I might be wrong but smoke n mirrors.
Click to expand...
Click to collapse
Umm ... yeah... wasn't THAT long ago. I was a field service engineer, repairing computers in the late '70's. This was before the advent of the desktop computer and pc, systems were the size of your refridgerator. A 10 MB hard drive platter was larger than a vinyl LP record and RAM was 'Static RAM' coils.
So .... I go back a few 24hrs with technology myself. And I am here to tell you JD works terrific on my Charge. As stated above, where you see the improvement is in the idle/sleep state. JD shuts almost everything down to minimize battery usage. Obviously, it isn't going to 'extend' your battery during moderate to heavy usage.
Works fine on my GNex , my only complaint and I dont know if its dealing with Verizons network . It sometimes takes a while for the 3G to kick back on after the phone is unlocked .
I used it all the time on my Bionic, but I've gotten better results without it on my nexus. Your mileage may vary, of course.
Sent from my Galaxy Nexus using xda premium
I have noticed under partial wakelocks the JD service is always leading the list on my Nexus. Not sure if I get better battery life with or without it (still playing).
tclarkey said:
I have noticed under partial wakelocks the JD service is always leading the list on my Nexus. Not sure if I get better battery life with or without it (still playing).
Click to expand...
Click to collapse
Remember jd does wake the phone every 10mins or so to activate data to check for emails etc, that would be why its there
Rellikzephyr
Sent from my Galaxy Nexus using Tapatalk
Cracks me up the people that slam apps that have never tried them or even read on them.
JuiceDefender works and as with many things your benefits will vary depending on your usage. On my old incredible JD showed 1.6x battery life which was also represented in the time it lasted. If your in a place with poor signal like a building all day for work it can make a big difference. It does have down falls if you depend on exchange email or etc as apps that require data can be delayed.
So far for me the Nexus appears to have much better battery life than the incredible so I'm going without it for now.

Best rom for battery? Current rom burns 1% per minute.

Currently using latest calk rom I get about 2 hours using my phone for browsing thr internet at home. When 3g is turned on it drains even faster.
It has always been like this. If the phone is set on idle without 3g and wifi it lasts about 10 hours.
also it takes about 3 to 4 hours to fully charge, i feel this is too long.
so any rom that might help me? is the battery faulty?
Sent from my SPH-D710 using xda premium
Blazer ROM
why are you using your phone to browse all day long ? use a pc or a tablet. its a phone not a desktop pc. plus put it into airplane mode and then turn wifi on, it disables the cel/data radios hence the battery last longer. If your phone takes 3-4 hours to charge from 0-100 something is wrong with it. turn if off and charge it, cuts down charging time A LOT !
That is ridiculous. But I've been using Blazer Rom for about 2 weeks now and I always get 30 hours+ battery life. I just got 3.8 and I hit over 40 hours just this weekend.
well, um, wow, those are some ... great suggestions...
you might have a bad batt, sure.
i would think it is likely something else though.
a few things off the top of my head.
is this on a "clean install"?
is there some app you have loaded that might be pinging/updating constantly? (I'm on the exact same rom, getting all day at least)
what modem are you on?
did you flash a custom kernel?
do you know how to take a screenshot of battery usage? show us what processes are eating it?
Eonn said:
That is ridiculous. But I've been using Blazer Rom for about 2 weeks now and I always get 30 hours+ battery life. I just got 3.8 and I hit over 40 hours just this weekend.
Click to expand...
Click to collapse
Nice miracle rom, bet I could kill your phone in 6 hours using it . I get 20-30 hours on my days off. But no rom will make up for the amount of use one can put into their phone.
RainMotorsports said:
Nice miracle rom, bet I could kill your phone in 6 hours using it . I get 20-30 hours on my days off. But no rom will make up for the amount of use one can put into their phone.
Click to expand...
Click to collapse
+1
Sent from my SPH-D710 using xda premium
Ya sounds to me like theres a problem with your install or something i was on calkulins and my battery life was great. Lasted like the other guy said at least a day under pretty heavy use.
Sent from my SPH-D710 using XDA App
I get great battery life with Blazer 3.8.
Idk about 40 hours (WOW!) but I do get around 3-4%/hour battery drain so it's not bad at all.
Try re flashing the ROM. That sounds abnormally for ANY rom.
Sent from my Epic™ 4G Touch
NoctMonster said:
Currently using latest calk rom I get about 2 hours using my phone for browsing thr internet at home. When 3g is turned on it drains even faster.
Click to expand...
Click to collapse
It could be a bad ROM (bad install, not the ROM itself), but don't presume that's the case.
Measuring whether the phone is draining appropriately is difficult to do when it's in active use (e.g., 2 hours of browsing) ; thus most people measure effective drain by measuring the drain rate when the phone is 'sleeping' -- though in some cases a bad app or bad install will prevent the phone from sleeping.
I would recommend charging the phone to full, leave all default radios on (GPS/Wifi/3g), and let it sit for an hour or two. If you're losing more than ~3-5%/hour, then you have a problem.
Tools you can use:
- CPU Spy - Will show you whether your phone is entering Sleep state or not
- Battery Monitor Widget Pro - will measure your mA drain rate; during sleep, you'd want it to be at least below 20mA, ideally below 10mA (note, this app requires a couple of charge/discharge cycles before its measurements are reliable).
- Better Battery Stats -- If you find your device is NOT sleeping, this will help you figure out what applications (including the kernel) may be preventing the device from sleeping.
RainMotorsports said:
Nice miracle rom, bet I could kill your phone in 6 hours using it . I get 20-30 hours on my days off. But no rom will make up for the amount of use one can put into their phone.
Click to expand...
Click to collapse
Your point? I could kill my phone in 6 hours too, but why would I want to do that? I play games all the time when I'm out at work or just out in general and I still get over 24 hours of battery. I never use my phone when I'm at home, that's what I have my tv and computer for.
how long has it been since you flashed? Maybe it needs a few cycles to settle. Do you have any wake lock issues? get betterbatterystats app, free for xda members, to check for kernel or partial wake locks.
I'm on BlazerROM 3.7 and getting about 1% every 2 hours on idle. It took me a week to see the battery life i'm getting now. My wife is on calks 2.8.1, I don't know what shes getting but when she gets home from work, she's still around 50%. On stock, she was typically around 30% already.
how do you get betterbatterystats for free as an xda member?
I'm on blazers and i'm at 79% battery at the 7hr mark on battery.
Sent from my Epic™ 4G Touch
I have seen this "mystery battery drain" problem in other threads. There is usually an app responsible. Try Watchdog, its not bad.
I also have heard that SD card or file errors can be responsible for the drain. Formatting the memory takes care of the problem. If it were me, I would format the memory, then run chkdsk (Windoze, or the equivalent in another OS) to mark bad sectors. In the case of internal memory, you will have to do that through the USB cable. Do so at your own risk, of course
calks rom with stock el13
Eonn said:
Your point? I could kill my phone in 6 hours too, but why would I want to do that? I play games all the time when I'm out at work or just out in general and I still get over 24 hours of battery. I never use my phone when I'm at home, that's what I have my tv and computer for.
Click to expand...
Click to collapse
The point is you walk into someones situation and act as if their usage of the device on whatever rom your on is going to produce a parallel experience. One of the biggest factors no matter the rom is screen brightness. If you spend most of your time out doors the experience is completely different even with the same usage patterns otherwise. I love screen brightness personally, haptic feedback is nice too who cares about the battery when the experience is better?
I have games on the phone, GTA III, MC2/3, Dead Space, etc. I don't actually play them. I remote into my PC, browser the web. I have a TON of apps that use the phone idle/background. I keep steam and im+ pro going. I let TEP ping GPS data every 10 minutes. Weather widget, google voice, etc. I even have Samsung Apps installed with its oh so horrible push service that apparently rapes peoples batteries... cant say it hurts at all.
Today was a day for me where my boss was around so I couldn't use the device much and when i did it meant leaving things like a remote client on because I couldn't touch it to turn it off. 52% battery was left after 12 hours so it obviously was going to survive the 16 hours I am awake, going to sleep now so it would easily last 24 hours. But the battery being Li-Ion and me actually caring about it, its going on the charger. Tomorrow could be 30 and the next day will probably be 8 hours.
As far as the topic is progressing. Check your apps and your settings. Ive had battery life so bad the phone died on the charger. Same rom, same apps slightly different setup later and I am getting good to acceptable and that constant wake this guy is probably getting is gone.
If your using a lot of push apps, you're battery becomes nothing more than a decoration, lol. Apps like aim, kik, basically all the chat ones. Games like words with friends. The more apps you have checking for updates on top of heavy usage with kill your battery fairly efficiently
Sent from my SPH-D710 using Tapatalk
Wizard Knight said:
If your using a lot of push apps, you're battery becomes nothing more than a decoration, lol. Apps like aim, kik, basically all the chat ones. Games like words with friends. The more apps you have checking for updates on top of heavy usage with kill your battery fairly efficiently
Sent from my SPH-D710 using Tapatalk
Click to expand...
Click to collapse
Which personally was part of the issue before on my setup. I still have them going again and battery life is decent. I mean Id want 16 hours out of a phone surely whatever my day is Ill have it on a charger by bed time.
I personally usually get 12 hours or more on days Im not using it constantly, 6 to 8 if I am using it every waking second. 24+ on days off. Haven't tried blazer in particular myself yet but Calks seems manageable even for demanding use.

Horrible battery life while just being idle?!!?

I've had this phone for about a month. Started off on stock, and rooted it and flashed different ROMs and kernels. I never really got good battery life with any ROM. Typically I would get around 7 to 10 hours of moderate usage.
I fully went back to stock firmware and kernel using ODIN, to flash 2.3.6. I rooted it and removed some bloatware apps. BUT, the battery life seems so bad.. it's been 2 days, I've done calibration 2 or 3 times.
Leaving my phone idle, in one spot, I lose about 4-5% an hour. 4G Data on, wifi off, 2/4 bars of signal, sync on (only gmail, google docs, contacts, calendar).
But today, I think it got worse, as shown here: http://i51.photobucket.com/albums/f380/wordk4/SC20120319-230121.png
Graph: http://i51.photobucket.com/albums/f380/wordk4/SC20120319-230126.png
Note: the data icon on top shows that it's on 3G, because I moved out of good signal area when I took the screenshots. The phone was idle in a spot with 4G getting 3-5mbps.
What's wrong with this? The phone is a month old, so I don't think it's a battery problem. I've calibrated 2-3 times since I went back to stock.
Also, don't recommend me to use Juice Defender. I use Google Voice to call and text, so I need data on all the time. And I know this phone can last over a day with data on (my friend has the same phone and it has lasted 2 days on one charge, completely stock firmware).
ALSO, when I press "Android System" on the battery history, here's a list of what it shows:
http://i51.photobucket.com/albums/f380/wordk4/SC20120319-231629.png
and
http://i51.photobucket.com/albums/f380/wordk4/SC20120319-231651.png
IS THIS NORMAL? :O
8-10 hours heavy usage? That seems like a lot...
Sent from my Sensation using XDA
Sensation-al! said:
8-10 hours heavy usage? That seems like a lot...
Sent from my Sensation using XDA
Click to expand...
Click to collapse
Actually that would be more of light/medium. Checking facebook every 30mins, a few texts now and then, playing a game for 30 minutes, listening to music for an hour, a call or two about 2mins each, a few instant messages on facebook, GPS use for 5 minutes, and idle for about 5 hours. Brightness at 50% or below. All on data connection, no wifi.
xFrozen said:
Actually that would be more of light/medium. Checking facebook every 30mins, a few texts now and then, playing a game for 30 minutes, listening to music for an hour, a call or two about 2mins each, a few instant messages on facebook, GPS use for 5 minutes, and idle for about 5 hours. Brightness at 50% or below. All on data connection, no wifi.
Click to expand...
Click to collapse
Well what do you think is suppose to happen when you USE your phone? Lol
Sent from my SAMSUNG-SGH-T989 using xda premium
cashyftw said:
Well what do you think is suppose to happen when you USE your phone? Lol
Sent from my SAMSUNG-SGH-T989 using xda premium
Click to expand...
Click to collapse
I know, but overall the time the display is on is 1-2 hours.. I know other people have been getting 16+ hours, 4 being with display on. With 4G data on.
xFrozen said:
I know, but overall the time the display is on is 1-2 hours.. I know other people have been getting 16+ hours, 4 being with display on. With 4G data on.
Click to expand...
Click to collapse
I see easily over 12 hours on a charge with my phone, and i use it heavily... 2 to 3 hours of phone time (at the least) wifi tether here and then, a lot of facebook iming and checking. Reading....
Something i noticed though. I got the phone in October or so, and the battery life started off pretty bad. I didnt do anything special, i figured it would be bad with such a massive screen. Over time though the battery improved, and now im seeing wonderful battery life. I usually unplug it at about 6:30 or so in the morning when i head to work, and yesterday at 10-something is when it started *****ing it had low battery life.
Moral of the story? Be patient, itll get better as time goes by.
xFrozen said:
I know, but overall the time the display is on is 1-2 hours.. I know other people have been getting 16+ hours, 4 being with display on. With 4G data on.
Click to expand...
Click to collapse
Your battery looks fine. Playing games rapes the battery. Also 4g rapes the battery.
There are ways to improve the battery but like you said... You need to use all of these features.
Go get a spare oem battery or a reputable extended battery.
Sent from my SGH-T989 using xda premium
Im at 52% right now, 34% display, time on 3 hours 14 minutes, and sitting at 1d 1h 39m on battery. Light usage.
Something is definitely draining your battery. As you can see your phone is awake when the screen isn't even on. It's just likely an app you downloaded or something in the background. good luck narrowing it down
Sent from my SGH-T989 using xda premium
Teo032 said:
Something is definitely draining your battery. As you can see your phone is awake when the screen isn't even on. It's just likely an app you downloaded or something in the background. good luck narrowing it down
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Lol way to back up your answer.
His battery is fine...
Sent from my SGH-T989 using xda premium
G1ForFun said:
Your battery looks fine. Playing games rapes the battery. Also 4g rapes the battery.
There are ways to improve the battery but like you said... You need to use all of these features.
Go get a spare oem battery or a reputable extended battery.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Just right now i'm on a bus and lost 5% in less than 10 minutes. Listening to music. All i did was send five texts, check Facebook for a minute and read the posts on this thread. That doesn't seem normal at all. 4G on, sync on.
blackangst said:
Im at 52% right now, 34% display, time on 3 hours 14 minutes, and sitting at 1d 1h 39m on battery. Light usage.
Click to expand...
Click to collapse
this is more than what I'm expecting, but definitely shows that something is wrong with my battery life.
Sent from my SGH-T989 using XDA
Oskiee said:
I see easily over 12 hours on a charge with my phone, and i use it heavily... 2 to 3 hours of phone time (at the least) wifi tether here and then, a lot of facebook iming and checking. Reading....
Something i noticed though. I got the phone in October or so, and the battery life started off pretty bad. I didnt do anything special, i figured it would be bad with such a massive screen. Over time though the battery improved, and now im seeing wonderful battery life. I usually unplug it at about 6:30 or so in the morning when i head to work, and yesterday at 10-something is when it started *****ing it had low battery life.
Moral of the story? Be patient, itll get better as time goes by.
Click to expand...
Click to collapse
You give me some hope. I recently ordered an Anker 2050mAh battery for this, hopefully that will help in the meanwhile.
Sent from my SGH-T989 using XDA
xFrozen said:
You give me some hope. I recently ordered an Anker 2050mAh battery for this, hopefully that will help in the meanwhile.
Sent from my SGH-T989 using XDA
Click to expand...
Click to collapse
2050mAh wouldn't get you to much more out of thr battery..
Only 200mAh over stock, hows this supposed to help if you have a sleep mode issue or app issue?
Bringz me back to my first statement.
Your kernel is NOT allowing deep sleep mode for whatever reason, your best bet would be make a backup
Delete data/factory reset and try it over a day.. if it works good, its an app issue, still the same. It is undoubtedly the kernel. Why pay more for maybe an hour out of your phone?
Run some actual tests to clarify the issue first..
There. I said my peace
If you tried everything else try recalibrating the battery.
I have seen this happen most often when flashing new ROMs. Especially if you did not wipe your system, data, and caches before install it seems to encourage this.
To Recalibrate Battery (must have custom recovery like cwm):
Charge phone to FULL
(I highly recommend AC charger for this)
Reboot into recovery
Look for wipe battery stats (should be I'm advanced if not main menu)
Unplug phone and restart it
Now FULLY KILL THE BATTERY
(for faster results set mp3 or video on repeat and let her rip)
Fully charge one more time and done
(again I highly suggest AC adaptor)
Keep in mind if you set your CPU to Max frequency or leave a demanding app running and CPU is set to allow full usage ondemand or performance the phone will kill battery very quickly.
Same if you leave antenna on auto 4G and it is weak around you and phone is always searching it will go fast as well.
Sent from my SGH-T989 using Xparent Green Tapatalk
xFrozen: have you downloaded cpuspy to actually see if your phone is hitting deep sleep?
Realn00b said:
If you tried everything else try recalibrating the battery.
I have seen this happen most often when flashing new ROMs. Especially if you did not wipe your system, data, and caches before install it seems to encourage this.
To Recalibrate Battery (must have custom recovery like cwm):
Charge phone to FULL
(I highly recommend AC charger for this)
Reboot into recovery
Look for wipe battery stats (should be I'm advanced if not main menu)
Unplug phone and restart it
Now FULLY KILL THE BATTERY;
(for faster results set mp3 or video on repeat and let her rip)
Fully charge one more time and done
(again I highly suggest AC adaptor)
Keep in mind if you set your CPU to Max frequency or leave a demanding app running and CPU is set to allow full usage ondemand or performance the phone will kill battery very quickly.
Same if you leave antenna on auto 4G and it is weak around you and phone is always searching it will go fast as well.
Sent from my SGH-T989 using Xparent Green Tapatalk
Click to expand...
Click to collapse
You sir, are a n00b, calibrating the battery is useless to this device and actually done automaticly.
So your post is useless and rather a waste of everyones time even reading. So thanks.
@above
Its obviously not hitting deep sleep, there's no way it can be and be draining the battery this quick.
@OP
As suggested above use cpuspy to check on the cpu when idle,
Sleep mode should kick in within 30sec to a minute.
Also chek my reply a few posts up and follow steps there..
Ignore Realn00b's post
Again:
@Realn00b
Please take the time to read up on batterystats.bin and find out what its for,
You don't need cwm to delete, just root explorer.. its in:
Data/system/batterystats.bin
Also, the entire basis of this is stupidity and was takin way out of context.
Batterystats is used to cache the active information of running applications (uptime/cpu usage, etc. NOT battery percents)
And should only be deleted under very very rare occasions (effecting above)
Your battery percent, is actually the mAh
Your system collects the information from a chip on the battery, among the information read, max mAh and current mAh.
The device then calculates from these the value we know as the percent.
Meaning, no device with a lithium ion battery stores charge information for the battery, making the entire purpose of your post for this, or ANY device not only useless, but also a little pathetic considering you would actually try to post a tip on something you are obviously completely uneducated about.
Please don't provide tips unless you are 100% sure of the situation and are actually educated on the material. Thanks
doug36 said:
2050mAh wouldn't get you to much more out of thr battery..
Only 200mAh over stock, hows this supposed to help if you have a sleep mode issue or app issue?
Bringz me back to my first statement.
Your kernel is NOT allowing deep sleep mode for whatever reason, your best bet would be make a backup
Delete data/factory reset and try it over a day.. if it works good, its an app issue, still the same. It is undoubtedly the kernel. Why pay more for maybe an hour out of your phone?
Run some actual tests to clarify the issue first..
There. I said my peace
Click to expand...
Click to collapse
I originally purchased it for two reasons:
1. For long trips or for when I'll be gaming a lot
2. It had no reviews, so I figured I should buy it and test it. It's cheap anyways, $11.
Also, I'm on stock kernel. Everything stock + rooted.
I just did a re-flash with ODIN, so it has all the bloatware back on. I rooted and installed most of the main apps I use (facebook, aim, xda, google apps, games, basic things).
Currently I have sync on for Google contacts, calendar, and gmail. Facebook syncs with existing google contacts. T-Mobile contact sync off. Dropbox auto uploads camera photos on wifi only (I rarely take photos).
It's charging right now, at 50%. I might not have time to leave it idle today, so I could try in the morning if I have time.
xFrozen said:
I originally purchased it for two reasons:
1. For long trips or for when I'll be gaming a lot
2. It had no reviews, so I figured I should buy it and test it. It's cheap anyways, $11.
Click to expand...
Click to collapse
Yea your right that is a good price.. is it same size as stock and have NFC? can you post link?
Thanks.
And please excuse realn00b up there..
He didn't know wat he was talking about.. read my post below it if you want an explanation.
Take a look at the safe to remove apps list aswell I'll see if I can find it on google pages for you. I definitely recommend
Deleting unndeeded applications and even replace stock with third party where applicable.
doug36 said:
Yea your right that is a good price.. is it same size as stock and have NFC? can you post link?
Thanks.
And please excuse realn00b up there..
He didn't know wat he was talking about.. read my post below it if you want an explanation.
Click to expand...
Click to collapse
1. http://www.amazon.com/gp/product/B0078WL4YO (i ordered this)
2. http://www.amazon.com/Anker-Batteries-Skyrocket-SGH-I727-Multi-purpose/dp/B0078WR4KW/ (even better deal!)
xFrozen said:
1. http://www.amazon.com/gp/product/B0078WL4YO (i ordered this)
2. http://www.amazon.com/Anker-Batteries-Skyrocket-SGH-I727-Multi-purpose/dp/B0078WR4KW/ (even better deal!)
Click to expand...
Click to collapse
Thanks!
That is a good deal.. doesn't say if it has NFC though, got some tags comming now
So definitely want that lol xD i dont want one of those bulky ass ones though

Never understood some people's philosophy on extending battery life.

I've read a lot of posts complaining about battery life, and other posts about users suggesting ways to improve battery life. I've read stuff like, disable LED, haptic feedback, lower volume, lower brightness, LTE turned off, underclocking, turning off sync, live wallpapers, etc, etc. To me a lot of people are crippling their phones. If your battery can last you 10 hours, that's enough because you'll probably be somewhere you can plug in. What's the point of being able to go for 20 hours when you'll probably have the opportunity to charge it before then? It's better to have and enjoy all the features.
Maybe somebody can chime in and give me their point of view.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
I agree. I would never want to sacrifice a feature just to extend the phone's battery life. Instead I use a custom rom that has all the features (and more) and 12 to 18 hours of battery life.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Part of the issue is a sociological thinking pattern between wanting "more" and needing it. Depending upon the type of lifestyle you live, sometimes, battery life is of dire importance to have if you're constantly migrating around. But I agree, some people who aren't in that sort of disposition go overboard with it.
I just bought a bigger battery :good:
I agree wholeheartedly. If your battery is lasting you through your day (which mine does, and more) then why try to conserve it?
Yea its funny stuff people complain their battery only lasts 20 hrs but yet they want it to be able to do everything a computer can do and more....
Sent from my SGH-I747M using xda premium
The only conscious effort i made to extend my battery life was to undervolt the CPU a bit, but this was more for the lower temperature advantages with extra battery life being an added bonus. Beyond that i turned off things i dont use like BT, no need having something running that i have no use for. Overall i was happy with the stock battery except for any kind of heavy video or game usage which drains it pretty quick - solution : bigger F'n battery :highfive:
i agree that some people seem a bit obsessive about it. but we shouldn give bad battery life a pass either. hopefully we will see some sort of advancement in batteries to have better battery life while keeping them at a decent size.
i was kinda worried id have horrible battery life with the S3 being that its LTE. my last LTE phone was so bad it would die after 8 hours idle.
Aftcomet said:
I've read a lot of posts complaining about battery life, and other posts about users suggesting ways to improve battery life. I've read stuff like, disable LED, haptic feedback, lower volume, lower brightness, LTE turned off, underclocking, turning off sync, live wallpapers, etc, etc. To me a lot of people are crippling their phones. If your battery can last you 10 hours, that's enough because you'll probably be somewhere you can plug in. What's the point of being able to go for 20 hours when you'll probably have the opportunity to charge it before then? It's better to have and enjoy all the features.
Maybe somebody can chime in and give me their point of view.
Click to expand...
Click to collapse
I keep the brightness to the lowest setting anyway, but I do all of this because I go to school fairly far from my home, and I'd like to be able to play games on my phone without wasting 5% battery every 15 minutes. I haven't switched power saving off since I bought the phone.
Stock ICS on my S3
I bought the extended battery because I like playing games from time to time and I don't want tl have to worry about my phone dropping 15% after playing something for 5 minutes. Like someone else said earlier. It really depends on the kind of lifestyle you live. I for one don't mind having the extended battery on my phone but I do miss how light it used to be.
Sent from my SAMSUNG-SGH-I747 using xda premium
Naldonnis said:
I bought the extended battery because I like playing games from time to time and I don't want tl have to worry about my phone dropping 15% after playing something for 5 minutes. Like someone else said earlier. It really depends on the kind of lifestyle you live. I for one don't mind having the extended battery on my phone but I do miss how light it used to be.
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
How heavy is it? Does it fit in a case?
For me, and I want as much battery life as possible to avoid those situations where there is no way to charge you phone even if that only happens 1 a month or less.. As a parent I can't just let my phone die on me... I always need enough to be able to take or make that important calls/text. My goal is to have at least 20-30 hours of battery life per charge.
I think the only major feature I've given up is live wall paper. Other then that, it is just disabling other unused apps like gtalk, talkback, Google bookmarked sync. As well I've uv my phone as much as I can and run a 1350 max clock speed. I really don't see any major dip in performance as long as you do it right . I do use Tasker to disable syncing globally when the screen is off and make sure it automatically disable bluetooth after 10 mins once it disconnect. Also I have the Y5 app to automatically toggle wifi based off my network location. The most useful battery saver I've found is to set my wifi to only connect when the screen is on. Seems kind of backwards but it works well when very little data is process during idle rather the the phone requiring to keep a constant connection to wifi.
Sent from my SGH-I747 using xda premium
I'm also one of those people that closes an app as soon as I'm done with it. Use an app, press the home button, release and hold home, swipe the app away, sigh in relief. An old habit carried from my S2 Skyrocket, where getting 8 hours on stock was above average.
Stock ICS on my S3
sly-tendencies said:
I'm also one of those people that closes an app as soon as I'm done with it. Use an app, press the home button, release and hold home, swipe the app away, sigh in relief. An old habit carried from my S2 Skyrocket, where getting 8 hours on stock was above average.
Stock ICS on my S3
Click to expand...
Click to collapse
I know that feel, I was on an LG nitro HD.
Sent from my SAMSUNG-SGH-I747 using xda premium
I have my screen brightness at 40-50 auto off.. i cant imagine turning it all the way down like alot of people say.. even when auto brightness is on it look very dull and dark at night to me.. Same thing for my tv with auto brightness.. but i still get good battery life. I am fully charged at about 6pm i use it till bedtime and use it for my alarm.. get up 4 am and when i get home at 2pm its still over 40%.. only thing i do is close all my running apps by holding home button a few times a day and same with ram
I work in an office so it's plugged in for the 2 hours before I leave so I have everything on full most of the day (brightness, lte...). Also, by undervolting I'm getting 30% more battery.
I think tips on increasing battery life like turning off lte and brightness are for people who can't plug in throughout the day or for emergency situations when you want to get the most out of your phone because there's some reason you can't charge.
Sent from my SGH-I747 using xda app-developers app
I get anywhere from 12 - 23 hours depending on whether I'm at work or off. I can live with that...but there are situations where being unreachable poses a problem.
So, to deal with my phone addiction, I got an original replacement battery. Always have it charged and on me. When the phone shuts down, pop in the replacement and your done. About a minute without a phone. This way I don't have to UV, worry about brightness, WiFi, Bluetooth, etc...
I can't deal with the bulk of an extended battery.
sent from my SIII i747
derberts said:
I work in an office so it's plugged in for the 2 hours before I leave so I have everything on full most of the day (brightness, lte...). Also, by undervolting I'm getting 30% more battery.
I think tips on increasing battery life like turning off lte and brightness are for people who can't plug in throughout the day or for emergency situations when you want to get the most out of your phone because there's some reason you can't charge.
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
30% more battery by simply undervolting? I think that's quite an overstretched statement. How is that even possible?
Aftcomet said:
30% more battery by simply undervolting? I think that's quite an overstretched statement. How is that even possible?
Click to expand...
Click to collapse
Its not possible. Not by solely UVing. The sole purpose of undervolting is so that your phone dosent overheat when running high clock speeds. Saving battery is just a perk. You might save a few percent with the undervolt but nowhere around 30%. But don't take my word for it.....
>>>> http://forum.xda-developers.com/showthread.php?p=33282284

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