Develop Bugs

Screen brightness and battery life.

I have been searching for 20 mins and can't find an answer (first time using the app so may have missed something).
I was wondering if anyone had any data on brightness % and power usage. People seem to go to great lenghts to change the brightness levels but I remember something on last years Google dev. con. videos on YouTube that said it didn't make as much difference as originally thought. (i can't find the video either lol. Bad search day here).
Sent from my HTC Desire using XDA App

The biggest improvement in battery life (IMO) comes from setcpu. I also keep my screen at 40% which I suppose helps some. I've got a Mugen extended life battery and setcpu set at around 537 max (on demand) with the screen off. I get 2 days out of my battery... And I use my phone a lot.

k3an said:
The biggest improvement in battery life (IMO) comes from setcpu.
Click to expand...
Click to collapse
Lol, now uninstall it, set smartass governor and see how meaningless that app really is.
madmaveric said:
I was wondering if anyone had any data on brightness % and power usage.
Click to expand...
Click to collapse
The bad thing is that on Sense roms, I have yet to see brightness going lower than 30%, even in pitch dark. Aosp does far better job as long as brightness is concerned. Setting it at low value is not an option for me either as it renders your phone unusable in direct sunlight.

/accidental double post

erklat said:
Lol, now uninstall it, set smartass governor and see how meaningless that app really is.
Click to expand...
Click to collapse
How to set governor when i don't have an app which can do this any more?
Swyped from my HTC Desire using XDA App

MatDrOiD said:
How to set governor when i don't have an app which can do this any more?
Swyped from my HTC Desire using XDA App
Click to expand...
Click to collapse
Every rom has it listed under its changelog, usually it is smartass for sense roms. It isn't by accident either, some have reported lag waking the phone up. I haven't across almost all roms available, and even if I did I'd still prefer 20% less performance over 20% less battery life.

madmaveric said:
I have been searching for 20 mins and can't find an answer (first time using the app so may have missed something).
I was wondering if anyone had any data on brightness % and power usage. People seem to go to great lenghts to change the brightness levels but I remember something on last years Google dev. con. videos on YouTube that said it didn't make as much difference as originally thought. (i can't find the video either lol. Bad search day here).
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
Why dont u test it wiht currentWidget or so? Okay, i did it:
0% -> 125mA
25% -> 150mA
100%-> 280mA
So what do we learn? Brightness and/or Screen has a big impact and probalby most people here trying kernel tweaks and whatever to improve the battery dont understand math.
MatDrOiD said:
How to set governor when i don't have an app which can do this any more?
Click to expand...
Click to collapse
You can just use the Terminal... its linux after all.

x潮騒x said:
Why dont u test it wiht currentWidget or so? Okay, i did it:
0% -> 125mA
25% -> 150mA
100%-> 280mA
So what do we learn? Brightness and/or Screen has a big impact and probalby most people here trying kernel tweaks and whatever to improve the battery dont understand math.
You can just use the Terminal... its linux after all.
Click to expand...
Click to collapse
Agree. Just check the battery usage, you will get the idea.
On mine, display usually uses 40% - 60%, with data always on.

Apologies for the late reply. lost internet connection for a week then forgot I posted it
Thanks for the replies guys. I eventually found the video, took ages lol
(youtube.com/watch?v=OUemfrKe65c).
According to what they say in this the screen actually doesn't account for that much of the total battery usage (mainly due to the screen being off most of the day) overall given everything else using battery.
i.e. coming up with a way to keep the device asleep for longer when turned off would completely out strip any adjustment to the screen brightness in terms of battery life.
So things like lower cpu when in standby can be really good but only when not getting data transfer (as this needs to be done very quickly as its expensive).
As adjusting screen brightness is easy to do I think that is why so much time is spent on this. In reality though it seems like it is only going to give a limited battery life increase.

But if you put low cpu, the cpu needs more time at low to do the same that a fast cpu, thats why the setcpu apps its a bit crap. I think that set low the brightness of the screen save more battery than putting the set cpu really low... (just my two cents)

I leave the brightness on my phone to around 30% for better battery, and i can see it ok in the daytime. I have recently had it up at 100% and noticed how quick my battery goes dead.

Gsanez said:
But if you put low cpu, the cpu needs more time at low to do the same that a fast cpu, thats why the setcpu apps its a bit crap. I think that set low the brightness of the screen save more battery than putting the set cpu really low... (just my two cents)
Click to expand...
Click to collapse
Very true.
I guess ideally you want the CPU low when its not doing anything and high when doing data transfers etc (to speed up the high current draw activities).
I guess a good app would be one that puts the phone in airplane mode for 90% of the time when inactive. Only coming out once every so often to check for text/data etc. I can see that giving better returns than anything else. from what was said in the video a phone in standby doing nothing would apparently last nine days (as apposed to one normally). Given this data I guess its possible to double the battery life with this kind of app.
I may have to have a go at writing one

SMF_12 said:
I leave the brightness on my phone to around 30% for better battery, and i can see it ok in the daytime. I have recently had it up at 100% and noticed how quick my battery goes dead.
Click to expand...
Click to collapse
I agree that turning the brightness down makes sense and saves battery. It just seems a disproportionate amount of time people spend over brightness vs better ways of extending battery life.
I guess the rewards also depend on the amount of time you use the phone as the more you use it, the better reward from the screen and the less from the standby solutions

settings to enable

anyone come up with a list to enable/disable to improve battery?

I think the battery is already pretty phenomenal.
Sent from my SPH-D710 using XDA App

Not for me
Sent from my SPH-D710 using XDA App

Is it better than mine?
http://forum.xda-developers.com/showthread.php?t=1266699

Stop using the light and orientation sensors. So turn off auto-rotate and don't use auto-screen brightness. Also use wifi when possible; 3g will consume more power if your signal is weak.
Sent on the run.

ShouldI hard reset
Sent from my SPH-D710 using XDA App

Batter
It is not good for me either. I am loosing about 15% a hour with the screen off and not even using it. If I use the phone i can just watch it fall about 1% every 5 min. I don't get it. the only thing i have in the background running is weather, twitter and gmail. That is it nothing else. The Android OS sits about 86% use in the batter use screen. I have no idea what is causing this. Any help would be great.

mjdoran said:
It is not good for me either. I am loosing about 15% a hour with the screen off and not even using it. If I use the phone i can just watch it fall about 1% every 5 min. I don't get it. the only thing i have in the background running is weather, twitter and gmail. That is it nothing else. The Android OS sits about 86% use in the batter use screen. I have no idea what is causing this. Any help would be great.
Click to expand...
Click to collapse
Run the phone down completely, to the point where it shuts off. Then charge until the led turns blue(fully charged), then turn it on. I'll screenshot my battery status tonight.
Sent from my Galaxy-Mother-F***in'-S-2!!!

Is android os always posed to be that high?
Sent from my SPH-D710 using XDA App

Yes lol
whatsitsnamenow said:
Is it better than mine?
http://forum.xda-developers.com/showthread.php?t=1266699
Click to expand...
Click to collapse
Sent from my SPH-D710 using XDA App

Yes it is always posted that high. I have also already tried the suggestion of completely draining the battery and charging to 100% twice now. Doesn't seem to help. This is not my first android phone so I have tried all the typical turn stuff off. I started with the hero and then went to the evo. Then jumped to verizon for thunderbold and now back on sprint for this phone obviously. So far this is the worst battery life I have had yet. Seeing what you guys are getting though gives me hope.
I have tried using spareparts to get more battery information but get a force close when trying to do that.

Man I know that battery results range pretty wildly, but I'm averaging 10% loss per 2 hours.
On launch day I was on it from about 3:30pm until about 10pm and only lost about 40%. And when I say on it, I bet the screen on time was 95% of that time.
So far, the battery life is one of my favorite things about this phone. First time I've felt comfortable enough to run a live wallpaper.

jirafabo said:
Man I know that battery results range pretty wildly, but I'm averaging 10% loss per 2 hours.
On launch day I was on it from about 3:30pm until about 10pm and only lost about 40%. And when I say on it, I bet the screen on time was 95% of that time.
So far, the battery life is one of my favorite things about this phone. First time I've felt comfortable enough to run a live wallpaper.
Click to expand...
Click to collapse
You are lucky then, If i use the phone I will loose 40% in about 2 hours no problem. Also if you are loosing about 5% an hour that will only give you about 20 hours total before your dead. I see people reporting they are getting over a day. Just don't see how. Are they just not using their phone at all.

What does everyone have there screen brightness to if not set to auto brightness? Also what is everyone's screen mode set to?

lse4 said:
What does everyone have there screen brightness to if not set to auto brightness? Also what is everyone's screen mode set to?
Click to expand...
Click to collapse
I have mine at manual and just under the A. I have the mode at standard.

What I do is look at my active app widget to make sure I have no apps running. It is nice being there. Messaging sometimes hangs, I have noticed that.
Kiki
Sent from my hand crippling Epic 4g Touch

You SHOULD always when you get a new battery fully Drain it and then fully charge the battery with the device OFF. Thats what I did with my phone. I kept using it once I got it, it lasted around 5 hours before the phone shut off during a phone call. then when I plugged it in to charge, I plugged it in and did not turn it on and waited till it fully charged with the Blue Light. I dont know about the normal thing now adays with lithium ion batteries but you were always warned in the packaging to let your battery fully cyle its first cycle with no use at all. The cells in the batteries have a memory type of design and if you dont fully charge the battery you can prevent it from knowing its full capacity.
Now I dont know if this is true anymore with the new battery production of the manufacturers now may power cycle the batteries before they seal the whole package so the customers dont have to do it. Maybe why when you get your device the battery is around 50% now like mine came. I remember older devices you could not use your device until you fully charged the battery the first time.
About Screen Brightness, I learned from a Epic user that the best way to conserve battry usage was to always keep your Screen Brightness at 10% (Gotta love the Touchwiz Brightness Changing with the Top Notification bar, this device will not show the slider bar like Touchwiz 3.0 on the Epic but IT STILL WORKS!!!!). I have noticed that at the lowest brightness setting I can still see everything vividly enough to work with it and im getting over 24 hours with moderate normal usage (like only 1-3 5-10 minute phone calls, surfing the net, surfing for new apps) This is my first android phone. I also have had 4G turned off and Wifi off all this time as I have no way to access those right now. I also have GPS turned off because I havent needed to use it yet. I pretty much have everything but Basic needs turned on besides all the Factory default presets. I also Turned my screen mode to DYNAMIC, which seems to show more vivid colors like I use on my Samsung TV for my computer usage.
Now I turned off Live wallpaper and im using one of the preinstall basic Grey ones (the one with the asfault looking spot light) (I have been trying to hit the crazy benchmarks people are getting trying to find out why I am not getting the 93+mflops mine keeps hitting 80's) So I dont know what heavy usage is doing to my phone.
but then again this is only under 48 hours of ownage. My first full night off the charger was 1 day and 3hours before it said I was 5% battery life and I plugged it in.

Now this battery life is more like it

-Wifi and Bluetooth on whole time
- Tons of texting, a lot
- Over 1 hour of phone calls on Bluetooth
- Over 3 hours of A2DP streaming
- Periods of no signal (subway)
- Screen on for 2 hours
- Google Reader and Web browsing
- Used the phone as I would normally without thinking about battery at all.
Very very happy. UPDATED with recent screenshots before I plugged it in.
Sent from my Galaxy Nexus using xda premium

Out of interest, how many times have you charged your phone (0%-100%)?

Never drained it to zero and started using it right away without charging it. Its been charged to 100 twice already. My uptime is 73 hours and that's exactly how long I've had the phone.
Sent from my Galaxy Nexus using xda premium

Wow! I wish mine was as good as that, seems to be getting better with each charge though, which is a positive.

Most I have got is 12,
Hopefully this will increase over time
Sent from my Galaxy Nexus using Tapatalk

BlackDino said:
Most I have got is 12,
Hopefully this will increase over time
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
me too OP: share your secret!
Sent from my Galaxy Nexus using xda premium

Probably dim screen. Usually screen takes 60%-70% of the power.
Sent from my Galaxy Nexus using XDA App

BlackDino said:
Most I have got is 12,
Hopefully this will increase over time
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Honest question, how many times are you more than 12 hours from sleeping or relaxing in your house?
12 hours is more than adequate for a normal user

This is mine after a fresh wipe and no apps installed. Just thought i`d see how it did with normal use.

Here's mine; at a point the phone got itself shut down for some reason, and I couldnt get it restarted at that moment, so I left it like that, and when I could turn it back on, it was quite warm around the camera unit, and also the battery was pretty much drained - thats what you can also see on the screenshot at the "20minutes" part of t he scale. After I've removed the battery and put it back, the phone was working for quite a while again, like 12 more hours.

I'm sure auto brightness helps as it keeps screen dim but during my use it was brighter especially outdoors. My whole point is there is no secret, you should use the phone as you would like it. One thing I could have done I'm sure to improve battery life is turn off wifi and bt when they weren't in use and possibly not have as many apps running but then what's the point in having the phone?: D
Sent from my Galaxy Nexus using xda premium

I get around 11-13 hours. Not too impressed. My iPhone 4S gets 20 easily. I'm really conservative on my Nexus too because doing anything intensive (games, video recording, youtube etc) really rapes the battery. I'm guessing some of you turn off auto sync or something.
Sent from my Galaxy Nexus using XDA App

I'm currently on 1 day 1 hour, with 50% left. Although with light usage.

Stretlow said:
Honest question, how many times are you more than 12 hours from sleeping or relaxing in your house?
12 hours is more than adequate for a normal user
Click to expand...
Click to collapse
true, just a pain in the ass to plug in.
would be nice if it lasted 18hrs so if I can wake up, stay out late, and then plug it in when I go to bed

BlackDino said:
true, just a pain in the ass to plug in.
would be nice if it lasted 18hrs so if I can wake up, stay out late, and then plug it in when I go to bed
Click to expand...
Click to collapse
I was able to do that last night but honestly not a big deal plugging it in.
It's simple really - the more you use the phone the worse battery life is but that's because you used the phone more! I never use the phone LESS just for battery life because then you're doing yourself and the phone injustice.

43% - 14h.. screen taking up 48%

from what I can see, apart from the screen, the biggest battery hog is wifi/3g
I installed Juice Defender and I am getting fantastic battery life now:

winwiz said:
from what I can see, apart from the screen, the biggest battery hog is wifi/3g
I installed Juice Defender and I am getting fantastic battery life now:
Click to expand...
Click to collapse
So JuiceDefender works fine for you? I just read that alot of users had problems with ICS and JD. Would be great if it worked though!

Here's mine. Since I was at work all day I only got time to play Dillo Hills for about 20 mins but I've found the battery is REALLY good after flashing the Android Revolution ROM. MoDaCo causes too much drain IMHO.

Battery life isn't too bad on mine. I got mine on the 10th and I used it right out of the box. Battery life wasn't that great until I did a charge to 100%. The OTA update didn't change much for me in regards to battery. Currently at 21h uptime and I'm at 32%.

SGSIII Heat & Battery Issues?

Background: Rooted, stock rom.
- Just bought the phone on Saturday, charged it fully and played around with it on Sunday literally just moderate texting, making short calls, and taking a couple of pictures and the battery pretty much dies by 2 PM. Will the battery life improve over time?
This is with the settings tweaked to maximum battery conservation (15% screen brightness, NFC/S Beam off, No motion controls, battery savings on, the works.)
- Also, in that time the phone seemed to be fairly hot, I cannot recall the temperature, but it was hot to the touch. And when I tried downloading the OTA update from T-mobile, the bottom half of the phone (everything below the battery) became drastically hot. But the battery remained relatively cool. Is this something I should worry about?
I'd just like to know so I can exchange the phone while I still can.

I just got mine on Friday and I noticed the same issue. It seems to get hot whenever its doing something data intensive live streaming a youtube vid or downloading a app.

Thanks for the response.
I used it for about 15 minutes this morning reading a web page on Chrome and it seemed to get warm.
Also streamed HD YouTube as well as Spotify for about 15 minutes and it's still warm.
The thing is, these are the first really data-intensive things that I have done so far.
I'm going to go through a whole day just to see what happens.
Forgot to add that I even reduced my CPU through SetCPU to 1.2Ghz the since I rooted it
It's at 87% after 2h 20m 46s on battery.
With only 42m 23s of screen time.

It should calm down after a couple of charge cycles. For battery. Also make sure auto brightness, auto sync is off, gps, motIon control, voIce cmd, etc.
I dont use the battery saving feature and get great life. But I remember a few times it getting hot after a fresh flash but it always calmed down for me. Getting warm is normal, especially if on the charger while using.
Theres a lot of features I like but dont use much so for me its worth the few extra seconds to turn it on/off.
Sent from my SGH-T999 using xda app-developers app

I am having the same issues. I got acwhite one last week and it is constantly hot near the home button. I am probably gonna revert to stock and return for another. My s2 did not do this.
Sent from my SGH-T999 using xda app-developers app

khoikn said:
It's at 87% after 2h 20m 46s on battery.
With only 42m 23s of screen time.
Click to expand...
Click to collapse
13% drain for almost 45mins screen time.
Sick
Sent from my SGH-T999 using xda app-developers app

Update
So I have completed my school day.
11h 25m 45s on battery
Battery percentage is at 57%.
I barely used the phone however.
Sent about 10 texts, went on Chrome and searched the web for about 15 minutes, took 8 pictures, instagram for 3 minutes.
Also kept getting e-mails (probably like 10 of them)
I turned on Power Saving mode as well.
Screen is the highest with 1h 32m 24s using 38% on my battery.
Would this be normal on the stock T-mobile rom with no updates?
I've never had an Android phone before so I wouldn't know.
But after researching, some people managed to be at around 70% usage by the end of the day. While doing more intensive tasks.

It's probably the service when you're inside buildings. If it's bad service it'll drain your battery.. if it's constantly trying to connect 4g you're going to have a short time *insert ski instructor meme*
Sent from my SGH-T999 using xda app-developers app

I suggest you guys flash Exajoule. His ROM is insane on battery & its really fast as well.
Sent from my SGH-T999 using xda app-developers app

I had the heats issues and ot turned out to be a borked phone. I returned for a swap and the new s3 is worlds apart from the last. Less heat and better performance
Sent from my SGH-T999 using xda app-developers app

You should check to see what's consuming CPU... (long press the home button, and go into the task manager...) should see something consuming cpu...
(when my phone's warm, it's generally because something's gone psycho on cpu use...)

scifan said:
You should check to see what's consuming CPU... (long press the home button, and go into the task manager...) should see something consuming cpu...
(when my phone's warm, it's generally because something's gone psycho on cpu use...)
Click to expand...
Click to collapse
Or better yet in dev options turn on Show cpu Usage. In the top right corner of your screen it will show whats running.
Sent from my SGH-T999 using xda app-developers app

Teo032 said:
It's probably the service when you're inside buildings. If it's bad service it'll drain your battery.. if it's constantly trying to connect 4g you're going to have a short time *insert ski instructor meme*
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
At home, I literally get 0-2 bars. But at school I can consistently get anywhere from 1-4 bars.
This could possibly be it, but I am not too sure how much my signal fluctuates throughout the school.

Britannia, troklwit
belial20xx said:
I had the heats issues and ot turned out to be a borked phone. I returned for a swap and the new s3 is worlds apart from the last. Less heat and better performance
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I had given my local T-mobile store a call and they said that smartphones should be regularly heating.
It's strange to me how I can do a task a simple as texting and it heats up though.
How long did you have the borked S3 for?

I 2nd the bad carrier coverage notion. Just as a test, I put my phone into airplane mode while watching a video. I watched the same video while out of airplane mode. The battery drained faster while on the carrier's network than not. I noticed the signal meter was at 3 bars before I played the video.

DocHoliday77 said:
Or better yet in dev options turn on Show cpu Usage. In the top right corner of your screen it will show whats running.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I haven't tried that... though most of the time my phone's running cool...

Better Through Time
I decided to instal CM10 on my phone and it really did help.
I just got home from school/finished most of my day and here's the update:
63% left
9h 45m 29s on battery
1h 21m 33s screen on time
This makes me feel so much better considering that I actually used the device more today than ever before.
(HD YouTube videos, streamed Spotify, lots of internet browsing, more calls/texts.)
Even with the added usage CM10 seemed to have improved my battery life by a lot!
Not sure if I can totally attribute it to CM10 or just more charge cycles, but everything seems to be working better for me.
Thanks for all of the help!
The phone still runs hot sometimes but it has decreased over the last couple of days.

I have noticed on my phone that since installing Liquid Smooth rom has resulted in much better battery life than on the stock rom. However, ever since I have owned the phone, if i have the screen on for more than 10 minutes or so the screen gets really warm right above the home button. Anybody else experiencing this?

trimble83 said:
I have noticed on my phone that since installing Liquid Smooth rom has resulted in much better battery life than on the stock rom. However, ever since I have owned the phone, if i have the screen on for more than 10 minutes or so the screen gets really warm right above the home button. Anybody else experiencing this?
Click to expand...
Click to collapse
Same problem. I just assume that's where the processor is? It doesn't bother me. Its quite funny because the top of my screen is cold. And it doesn't get hot when I'm using it for browsing, texting, the usual. Not unless I play a game.
Sent from my SGH-T999

Coesla character
trimble83 said:
I have noticed on my phone that since installing Liquid Smooth rom has resulted in much better battery life than on the stock rom. However, ever since I have owned the phone, if i have the screen on for more than 10 minutes or so the screen gets really warm right above the home button. Anybody else experiencing this?
Click to expand...
Click to collapse
I'm assuming that Samsung's stock TouchWiz isn't as optimized as the ROMs that the devs make on here.
Which is a definite plus to having a device that has a strong community of developers behind it.
That happens to me as well. I have kind of gotten used to it. Just slip on a case so when you hold it your hand doesn't get sweaty and you should be fine. I would assume that's where the processor lives, but I am not too certain.

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
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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
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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?
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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