Develop Bugs

A rant about my experience with the Verizon Galaxy Nexus. HELP!!

Let me start off with the good in this rant. This device is BEAUTIFUL and has A LOT of potential. Considering i just rooted it, it is even more fantastic BUT (there is always a "but" in life) here are my issues that i PRAY would go away. For some odd reason, though i have done everything i can to prevent it from happening, the battery life is just terrible! And here is the mind blowing part: My brightness is always at about 15-30 percent, my automatic sleep is at 15 seconds, i am never on 4G, NFC is off and my GPS is almost, always off. I recently learned that having a lot of black (Wallpaper, themes or simply a black display) going on prevents the display from eating up battery, therefore i've blackened what i use most (MMS, Gmail, Instagram and of course a black wallpaper) but after all of that, the battery still tends to suck major ball sack (sorry for the vivid image). If you must know i am using an AOKP rom, Jelly bean. I absolutely love the rom.
On behalf of that rant ^ .. Is there anything anyone could/would suggest i do in order to have a better experience with battery? Maybe a different rom that revolves around better battery life? Anything that i am missing to prevent battery from draining so fast? AM I THE ONLY ONE GOING THROUGH THIS?!
Last but not least, what gets me going and makes me want to punch something is the fact that my phone constantly, CONSTANTLY heats up for NO REASON (i'm assuming theres an actual reason but i have no idea what it is). After a full charge, i'd unplug the device and couple mins in after browsing web for like 60 seconds and texting, it'd start burning on the top of the screen and the back where the camera is. What is that all about?
And on behalf of that second rant ^ .. is there a solution for that? AM I THE ONLY ONE GOING THROUGH THIS?! lol
:crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying::crying:
Check out what my battery looked like after a few mins from unplugging it. Screen, 67% ??????

Believe it or not... I had a battery go bad already on me. Now i was short charging it and stuff like that.. but still. The early builds weren't as efficient as this one is. You might try a new battery. Or the oem extended one. I have had good luck with both routes. Oh, and i'm stock.

Lots of battery drain and a hot phone means that it's trying to do something. Looking at your screenshot, you're not having any signal problems, which would lead me to believe it's a rogue app. What was your total screen on time during that 48 minutes?

Cilraaz said:
Lots of battery drain and a hot phone means that it's trying to do something. Looking at your screenshot, you're not having any signal problems, which would lead me to believe it's a rogue app. What was your total screen on time during that 48 minutes?
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i honestly don't remember, i THINK it was probably 32 mins because thats what i see every time i see the battery that way. If that makes any sense.

Which kernel are you running with that rom? I had a JellyBean rom with a kernel that increased overall, but my phone would often heat up and battery life was not the best. Changed roms and kernel and everything is cool now.

jeremyt727 said:
i honestly don't remember, i THINK it was probably 32 mins because thats what i see every time i see the battery that way. If that makes any sense.
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32 minutes of screen on being 29% of your battery. That makes roughly 110 minutes of screen on for the entire battery. Running a stock battery? I never did, but I think people have said 2 hours screen on is the low end for a normal battery. I could be wrong, though.

LGeX said:
Which kernel are you running with that rom? I had a JellyBean rom with a kernel that increased overall, but my phone would often heat up and battery life was not the best. Changed roms and kernel and everything is cool now.
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Heres a screenshot of the info :

2 hrs is the low end for OEM battery? I'm lucky to get over an hour and a half on OEM extended. GNex battery is unbelievably horrid.

mursepaolo said:
2 hrs is the low end for OEM battery? I'm lucky to get over an hour and a half on OEM extended. GNex battery is unbelievably horrid.
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Or the high end. I got mine as a replacement device for the Droid Charge, so I had to order a battery and back cover when they offered it to me. Since VZW had a 50% off sale on the 2100mAh battery and back, I went with that. So I've literally never used the standard OEM battery with the phone.

Try going to this link: http://minooch.com/franciscofranco/Galaxy Nexus/JB/Jelly Bean/
and downloading "franco.Kernel-r225-384GPU.zip" flash it in recovery like you would a normal rom. Franco's kernel is extremely stable and works magic for good battery life. Should also resolve your overheating issue. If not, I'd suggest a full wipe and installing a different rom.

LGeX said:
Try going to this link: http://minooch.com/franciscofranco/Galaxy Nexus/JB/Jelly Bean/
and downloading "franco.Kernel-r225-384GPU.zip" flash it in recovery like you would a normal rom. Franco's kernel is extremely stable and works magic for good battery life. Should also resolve your overheating issue. If not, I'd suggest a full wipe and installing a different rom.
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Terrific! So no need for a data/cache wipe? I can flash this over the current ROM I'm using? Backup I'll do of course but yeah.

jeremyt727 said:
Terrific! So no need for a data/cache wipe? I can flash this over the current ROM I'm using? Backup I'll do of course but yeah.
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I normally wipe cache, not sure if it's required. But yeah, it's not a new rom or anything, just different kernel to test out and see if the kernel is what was causing your battery issues.

I'm using the jbsorcery beta with the lean kernel and under clocked with the modded voltage and this is heavy usage on Facebook and texting and about 30 min on the phone I have about 2hrs 45min and im at 80%
Sent from my Galaxy Nexus using xda premium

[Q] Any way to Increase battery life?

I'm just wondering if there's any known methods to increase the battery life without sacrificing performance. I know the basic stuff like turning off Gps, Wifi, Data, etc. when not needed but is there anything else I can do to prolong the battery life? I'm currently running the wanam lite rom with trininty's alpha 7b kernel. A couple of people reported great battery life with this combo but I'm only getting a little bit better than stock battery life.

What exactly is a little bit better than stock? How many hours are you getting?

theexel said:
What exactly is a little bit better than stock? How many hours are you getting?
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Well with moderate use ( 3-4 hours of web browsing, playing games, etc.) on stock I get about 9 hours and with this rom and kernel I get roughly 9 and half.

theboss23 said:
Well with moderate use ( 3-4 hours of web browsing, playing games, etc.) on stock I get about 9 hours and with this rom and kernel I get roughly 9 and half.
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I get the same too, kind of hate it :/ I don't understand what drain so much when the phone is not in use, I always wonder why stand by time is so bad in my phone, I get much better battery life rooted but I'm stock right now, I got tired of flashing roms and I hate to wipe every time I flashed so I prefer stock to stop doing that
Sent from my SGH-T999 using Tapatalk 2

jgalan14 said:
I get the same too, kind of hate it :/ I don't understand what drain so much when the phone is not in use, I always wonder why stand by time is so bad in my phone, I get much better battery life rooted but I'm stock right now, I got tired of flashing roms and I hate to wipe every time I flashed so I prefer stock to stop doing that
Sent from my SGH-T999 using Tapatalk 2
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Yeah, The rom is based off of stock H2 and is supposed to have some battery tweaks to make it last longer. All of the people said battery was good using this combo and 1 person said it's been 1 day 16 minutes, and they had 26% left but they didn't post the usage.

Ok this is with the stock rom. Heavy usage by my means any way. It was on the charger for a few mins here and there. But really not enough to show real battery increase.
Sent from my SGH-T999 using xda premium

The best way to determine battery life (not I played a game for a little, surfed the web over 4G, called some, texted all day) is to take a screenshot of your Screen On time, and overall time since charging. Otherwise, your statements are pointless.

If u have a rooted device u should try the highonandriod Rom it dies have better battery life than stock

theking_13 said:
The best way to determine battery life (not I played a game for a little, surfed the web over 4G, called some, texted all day) is to take a screenshot of your Screen On time, and overall time since charging. Otherwise, your statements are pointless.
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Well the purpose of this thread wasn't to solve an issue with my battery life or determine my exact amount battery life, but rather to find out if there are any tricks to improve battery life. So there's no reason for me to post any screens of my battery stats because it's irrelevant to the thread, I was just wondering if anyone knew any tricks or tips they use to improve their battery life.

gonnapushthru06 said:
If u have a rooted device u should try the highonandriod Rom it dies have better battery life than stock
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I'm very happy with Wanam Lite for now, it's so far the smoothest stock rom I've flashed and I'm eagerly awaiting the next update, so I don't really plan on flashing anything else for now. Thanks for the suggestion though, I'll definitely give it a shot when I'm looking for another rom to flash.

Disable auto synchronize. Thats the key.

theboss23 said:
Well with moderate use ( 3-4 hours of web browsing, playing games, etc.) on stock I get about 9 hours and with this rom and kernel I get roughly 9 and half.
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I'm on Verizon but I use synergy with imoseyons kernel and could get 5bhours browsing but I played fifa pretty much all day lol. Lte all day.
Via my Google Galaxy S3 with AOKP Butter

theboss23 said:
Well the purpose of this thread wasn't to solve an issue with my battery life or determine my exact amount battery life, but rather to find out if there are any tricks to improve battery life. So there's no reason for me to post any screens of my battery stats because it's irrelevant to the thread, I was just wondering if anyone knew any tricks or tips they use to improve their battery life.
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Don't use the phone. The screen will almost always be your biggest power draw. Screen-on time is relevant because if you have the screen on for three or four hours you aren't going to see battery life that is any better.

joshnichols189 said:
Don't use the phone. The screen will almost always be your biggest power draw. Screen-on time is relevant because if you have the screen on for three or four hours you aren't going to see battery life that is any better.
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Your right, it is relevant when comparing, but I'm not comparing anything here just looking for tips and tricks. I looked at battery stats when I compared the stock battery to the rom battery and recorded both stats on heavy use. If you want statistics, I got 9h 38m of battery use, internet and netflix took up 31% battery consumption, games took up 23%, phone calls and texting took up 12%, and the other 34% is basically screen off time. These were the stats from when I tested it on the Wanam Lite rom. I'm not confused as to why it only lasts about 9 and a half, hours as you can see I was constantly on the phone when I was testing it.

theboss23 said:
Your right, it is relevant when comparing, but I'm not comparing anything here just looking for tips and tricks. I looked at battery stats when I compared the stock battery to the rom battery and recorded both stats on heavy use. If you want statistics, I got 9h 38m of battery use, internet and netflix took up 31% battery consumption, games took up 23%, phone calls and texting took up 12%, and the other 34% is basically screen off time. These were the stats from when I tested it on the Wanam Lite rom. I'm not confused as to why it only lasts about 9 and a half, hours as you can see I was constantly on the phone when I was testing it.
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Well not only were you watching a video (I assume, instead of just browsing) Netflix, you were streaming. That probably did a number on your battery. I know I cannot stream Netflix for very long if I want my phone to last through the day. Also games, things that will ramp up the processor, etc while using the screen will tax your battery more than usual.

theboss23 said:
I'm just wondering if there's any known methods to increase the battery life without sacrificing performance. I know the basic stuff like turning off Gps, Wifi, Data, etc. when not needed but is there anything else I can do to prolong the battery life? I'm currently running the wanam lite rom with trininty's alpha 7b kernel. A couple of people reported great battery life with this combo but I'm only getting a little bit better than stock battery life.
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Some may not like my answer because it removes some bells and whistles, but I suggest turning off all the motion features. Just my two cents. Battery life was better and I found most of the motion features unnecessary.

joshnichols189 said:
Don't use the phone. The screen will almost always be your biggest power draw. Screen-on time is relevant because if you have the screen on for three or four hours you aren't going to see battery life that is any better.
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"Dont use the phone" ....LMAO!!

joshnichols189 said:
Well not only were you watching a video (I assume, instead of just browsing) Netflix, you were streaming. That probably did a number on your battery. I know I cannot stream Netflix for very long if I want my phone to last through the day. Also games, things that will ramp up the processor, etc while using the screen will tax your battery more than usual.
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Yeah, this isn't my everyday use, nor would I do this if I was trying to maximize my battery life. This was purely for testing the battery life on heavy usage and I found that it was only a little bit better when compared to stock. I'm in no way complaining, I think Wanam has done a amazing job with the rom. The stability is great, speed is comparable to JB roms, and battery is a lot better. Unless used heavily as shown above, then it's only slightly better then stock which is kind of odd but makes sense. I was just wondering what all a person could do to maximize their battery life, that's all.
jcbofkc said:
Some may not like my answer because it removes some bells and whistles, but I suggest turning off all the motion features. Just my two cents. Battery life was better and I found most of the motion features unnecessary.
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Thanks for the tip! I'll definitely try this since I don't use most of the motion features either.

lazarat said:
"Dont use the phone" ....LMAO!!
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Once again, thanks for the useless post. It's called sarcasm. Too bad your skull is too thick to pick up on it.
theboss23 said:
Yeah, this isn't my everyday use, nor would I do this if I was trying to maximize my battery life. This was purely for testing the battery life on heavy usage and I found that it was only a little bit better when compared to stock. I'm in no way complaining, I think Wanam has done a amazing job with the rom. The stability is great, speed is comparable to JB roms, and battery is a lot better. Unless used heavily as shown above, then it's only slightly better then stock which is kind of odd but makes sense. I just was wondering what all a person could do to maximize their battery life, that's all.
Thanks for the tip! I'll definitely try this since I don't use most of the motion features either.
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No worries! If you have trouble with idle battery drain, something like Juice Defender will help a lot if you're going to have the phone idle for extended periods of time. Other than that, all I can think of is underclocking (I run at 1350), and sometimes overclocking your min-CPU speed can help as well. The thought behind this is is that the CPU will be able to finish tasks faster, even if slightly, and then be able to go back into deep sleep. I know a lot of people on the Galaxy Nexus forums run 700min, 1000max because of this.

joshnichols189 said:
sometimes overclocking your min-CPU speed can help as well. The thought behind this is is that the CPU will be able to finish tasks faster, even if slightly, and then be able to go back into deep sleep. I know a lot of people on the Galaxy Nexus forums run 700min, 1000max because of this.
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Thanks, I actually didn't know that, I also heard undervolting can increase battery life and reduce the battery/phone heating up but someone said that it can it will have a major effect on the CPU, not sure if it's true or not.

How To: Better Battery Life

I hear it all the time... Does this rom provide good battery life? How's the battery life? Why is my battery life suck? So; it may have been done already somewhere; but I figured after watching and logging my own battery life, I could really help some others. I'll section this out; no specific order at all.
ROM: No matter how many times I look at a ROMs thread, I get to see a multitude of "How is the battery life" posts. You know it, I know it, and we all know it. Truth is; after using plenty of ICS roms out there; most of them have similar battery life. Currently I'm running the Blu Kuban rom, and I get just as good battery life as I do with most other touchwiz based roms. To each rom their own. Read up on the rom itself before you go blaming the rom for battery life. I've noticed the JB builds aren't the best with the battery, but we must remember those are usually noted for having bad battery life. Either way, most of the ROMs I've used personally perform rather similar in actual battery life.
Kernel/Governor tweaks: I can't stress this enough. Governor's and Kernel Thread. That thread will teach you more than anything you want to know about kernel and governor tweaks. Some of these governors can send your phone to absolute battery immolation, while others can set your phone up to last 2x as long. I prefer the more conservative approach and end up with a ton of battery left at the end of the day. While these settings are important, the most important is yet to come.
APPS. I can't stress this enough. I used a quite a few different setups to find what all really uses battery, what doesn't, and what I should to to maximize my own battery. For those of you who don't know me at all, I work ten hours a day, and I used this time frame to measure the battery usage while it's sitting in my car for ten hours. I have a Trexcell 3800mAh battery, so it's roughly 2x the power as the stock battery.
What's the number one usage on my device? NOTIFICATIONS! All of those apps that automatically feed their greed by getting updates from the servers or whatever. Facebook, Hotmail, Tapatalk, and EVEN just the gMail app could drain 10% of my battery in ten hours. Let me show you my findings.. These are the normal apps I use that can automatically update over certain time frames.
Hotmail
Tapatalk (Xparent Red version)
gMail
Facebook
Now if they all automatically update on the stock settings, ten hours of work will mean I'm coming back to a phone with only 75% battery. With only 4-6 hours of deep sleep! That means these apps are waking my phone up to do whatever they want for quite a while. With all of them set to be manually updated; I come to 95-97% battery life. That's quite a stretch in a difference you know?
So, I tested each with the others off and here is what I found. (I tested for three days, wrote my results for each day, then switched to a different app)
Hotmail set to update hourly would leave me with about 90% of the battery at 4:30. Average deep sleep times were in the 8-9 hour ranges.
Tapatalk was setup stock for 15 minute updates. I'd lose at least 10% on the battery every day! Deep sleep however would range in the 8.5-9.5 hour range.
gMail was set to update hourly and would leave me with 95% each day with only keeping the phone awake for 30 minutes on average.
Facebook updates are odd; since they don't happen all the time. So I had a good friend post on my wall three times a day and noticed that it would eat a LOT of battery, usually 10-15% and keep my phone awake for about 30 minutes a pop.
Now I must note, for my tests I had almost nothing installed on the phone aside from the apps listed and the basic apps available in the blue Kuban rom. For the tests, I set google voice to do not disturb so phone calls and the like wouldn't be an issue.
With all four of the apps set to default updates however (no messages on facebook aside from one day), the battery life ranged from one day being 67%, second day ended with 74% and the third day left me with 72%. That's a LOT of battery for just sitting in my car.
After these findings, I've switched all my apps to update only when I manually refresh them, and I'll tell you what, my battery life has never been greater. I literally come home with 95% battery on average and can sit and play on my phone almost all night without charging until it's nightly stay on the charger.
Just some other tips I've learned along the way.
Wifi is a battery slaughterer if it's not connected. Driving around the city and having the wifi detect all kinds of networks is just battery slaughter. So, my rule of thumb now is, when I leave the house the wifi goes off. It's true that wifi uses less battery than 3g and 4g, but when you're picking up random networks and the radio is searching through them, it's just no good for the battery.
Brightness, it's a key. I can't stress this enough, if you don't need 100% brightness and want better battery life, turn that screen brightness down to an acceptable level.
As an ending to this short but sweet little tidbit of information, I'd like to share why I wrote this, did all this testing, and why it mattered to me since I have an extended battery. My phone is my link to the world, my family, potential jobs, and just my favorite handheld entertainment device. Me and my fiancee` both have the E4GT, and I have the extended battery. She has the stock battery and it doesn't last long at all for her. So my plan now is to work with her on her battery life, and give her this extended battery. I won't need it since I literally have to try to get to 50% battery life with it. I usually end up plugging my phone in for the night at 65-75% battery. I just figured I'd share this with people on the forum as maybe a different approach to saving some precious battery. If you like it, tap the thanks button. If you have any ideas to better this, let me know!

How's battery life on this ROM
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VVVVVV
ÄÖK¶ B4
"420 Special Edition 10/16"

Just like to add for people to check their batteries lol...these stock batteries that come with the phone don't last all that long..a lot of these batteries go bad quick and need to be replaced (a simple spin of the battery will tell you if you need it changed)...and for a lot of people to stop constant deep charges and to charge when needed instead of pushing the battery to low critical levels
-TeaM VeNuM Like A Boss

I will also add that if you're going to try and mess with settings such as I/O or over/under clocking do your research so you don't jack your phone trying to save a battery. I say this from experience lol
Sent from my SPH-D710 using xda premium

I understand leaving your phone on all day long so you can see texts and missed calls and stuff but why not just turn off your data during the day instead? I use this widget when I am in a poor signal area, don't need data, or sometimes overnight https://play.google.com/store/apps/details?id=com.farproc.data.enabler&hl=en Simple and effective and you can let your apps sync for times when you are using the phone
Undervolting also helps a little

Step 1. Install CM10 or ParanoidAndroid.
Step 2. PROFIT!
Battery life between stock and AOSP is night and day.

The questions about battery life are there because not every kernal is the same. Especially ones that are early in development. Pretty much every AOSP rom will defer some amount and even more so if 1 of them is in its early stages.
Sent from my SPH-D710 using xda app-developers app

What battery problem I'm, all good
Sent from my SPH-D710 using xda app-developers app

What most people need to know is no matter what tweaks are applied.. YMMV. It's all down to the user.. Best way to save battery on your phone.. Turn it off!!!! lol But I agree with the things posted. I'm always messing around to find the best settings.. So far i've gotten over a day (1d 3 hours) with over 2 hours screen on with my setup. Which is great for me. But all in all, it's how i use my phone.

MiguelHogue said:
Just like to add for people to check their batteries lol...these stock batteries that come with the phone don't last all that long..a lot of these batteries go bad quick and need to be replaced (a simple spin of the battery will tell you if you need it changed)...and for a lot of people to stop constant deep charges and to charge when needed instead of pushing the battery to low critical levels
-TeaM VeNuM Like A Boss
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What do you mean spin the battery? As in literally put in on a counter and spin it?

VeEzyZ32 said:
What do you mean spin the battery? As in literally put in on a counter and spin it?
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Yes.. If it's spins that means it's bulging.. And that equals a bad battery
-TeaM VeNuM Like A Boss

MiguelHogue said:
Yes.. If it's spins that means it's bulging.. And that equals a bad battery
-TeaM VeNuM Like A Boss
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And if it jumps up and starts doing flips.... YOUTUBE THAT SH!T!!!!! :laugh:

milky1112 said:
And if it jumps up and starts doing flips.... YOUTUBE THAT SH!T!!!!! :laugh:
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Lol if it jumps and starts doing flips.. Stand back... That thing about to explode
-TeaM VeNuM Like A Boss

Oh everyone loves the magical blue smoke! (i was an airvraft electrician in the navy, seen batteries that werent happy lol noooooo funn)
Sent from my braille Epic Touch

I wanted to share some of my thoughts and experiences with battery life on my E4GT.
On GB I had great battery life...As soon as I got on any version of ICS I started having battery life issues. I eventually learned that my battery was buldging so I ordered a new one. Once I got my new battery, I thought life would be grand...NOT so much!!
Over the last month or so and ROM after ROM, tweak after tweak and even going straight stock I figure it was actually the device itself that was the problem...AND it was the problem from the day I got it last Dec. From reception to battery life to buzzing camera.
Something I've seen as is that "freezing" an app doesnt always disable it...I've had to completely uninstall something to get it to not run...even though its frozen and all of its startup references are disabled in Autostarts.
I dont care for the stock browser, but I've learned that 3rd party browsers such as Firefox and Chrome continue to run and use CPU even after exiting...Now, FIrefox has an actual "Quit" option while chrome doesnt...So if you Quit out of Firefox its ok, but unless you close your tab in Chrome it just keeps on chugging battery power.
A TEP replacement phone is what finally resolved my issues!!
I've only had my new phone for 2 days now, but I'm already seeing better battery than before, plus better reception and a camera that doesnt buzz.
I've got Agats ROM with the BluKuban 1.8 Kernel. This Kernel has a few more options enabled so I use that but I like how Agat put his FI27 ROM together.
Thanks for reading...

Found this one to be very helpful (written for the nexus but some does apply to our device):
http://forum.xda-developers.com/showthread.php?t=1599025
Also if you have a newer version of maps, make sure to go to settings-location settings and disable location reporting and location history, these two kill your battery when turned on.

[Q] Why are YOU obsessed with battery life on your SGS3?

Okay I have a question for the masses here. Why are YOU obsessed with battery life on your SGS3?
I've been through my fair share of cell phones with the latest 3 being the Galaxy S, SII and now the SIII. I've been through a long list of custom roms as well as time spent on stock roms and not once I have I installed a battery monitoring app like Juice Defender, nor have I been interested in undervolting or underclocking as I don't feel the extra battery life outweighs the instability of the phone and the time spend finding the exact perfect values to prevent reboots. As long as I have battery life to get my through the day (which I always have MORE than enough, I'm happy. I'm not a heavy user but my phone gets a workout during the day and I'm never far from a charger which is the awesome thing about having a USB connector to do the charging.
So I ask the question, what is the obsession with battery life? Are you trying to go green and get the most between charges as to not waste power recharging? Do you use your phone so much during the day that you can't make it through the school or work day without it going dead? Are you off the grid living in the bush and only get to charge when you are in town every couple days? Is it bragging rights you are looking for? Why did you spend big bucks to buy an extended battery? Why don't you use the phone the way it was intended to be used and turn off syncing apps just to save a bit of battery? Why do you turn screen brightness down to minimum and leave it there all the time when we have big beautiful screens that look so much better when they are correctly lit up for our surroundings?
I just find it interesting that every ROM thread and every kernel thread and a good portion of the threads in Q/A sections are littered with questions and discussions and arguments about battery life. How to get better battery life, why is my battery draining so fast on such and such rom, what is a good screen on time amount per charge. I don't understand nor can I find an interest in spending time to dissect and analyze everything just to squeeze an extra half hour of screen time out of my phone.
So why? Why are YOU so interested in the battery life of your phone. I'm not looking to make fun of anyone here. Just curious what the obsession is all about and why you are so interested. How does it make your phone or your life easier and better. Maybe I'm missing something.

Well for me, my battery life really sucked and didnt understand why so I started researching and i found out from stock you can do tweaks to improve it and so on and so on.
When I say my battery sucked on stock though it was really bad. I couldnt go a whole day. I would get about 10-15 hours of on time with less than a hour of screen time and my phone would be dead.
I dont care for going 2 days without a charge, I just wanted to go morning to night and still have some juice left. which i wasnt able to do before.

flexfulton said:
Okay I have a question for the masses here. Why are YOU obsessed with battery life on your SGS3?
I've been through my fair share of cell phones with the latest 3 being the Galaxy S, SII and now the SIII. I've been through a long list of custom roms as well as time spent on stock roms and not once I have I installed a battery monitoring app like Juice Defender, nor have I been interested in undervolting or underclocking as I don't feel the extra battery life outweighs the instability of the phone and the time spend finding the exact perfect values to prevent reboots. As long as I have battery life to get my through the day (which I always have MORE than enough, I'm happy. I'm not a heavy user but my phone gets a workout during the day and I'm never far from a charger which is the awesome thing about having a USB connector to do the charging.
So I ask the question, what is the obsession with battery life? Are you trying to go green and get the most between charges as to not waste power recharging? Do you use your phone so much during the day that you can't make it through the school or work day without it going dead? Are you off the grid living in the bush and only get to charge when you are in town every couple days? Is it bragging rights you are looking for? Why did you spend big bucks to buy an extended battery? Why don't you use the phone the way it was intended to be used and turn off syncing apps just to save a bit of battery? Why do you turn screen brightness down to minimum and leave it there all the time when we have big beautiful screens that look so much better when they are correctly lit up for our surroundings?
I just find it interesting that every ROM thread and every kernel thread and a good portion of the threads in Q/A sections are littered with questions and discussions and arguments about battery life. How to get better battery life, why is my battery draining so fast on such and such rom, what is a good screen on time amount per charge. I don't understand nor can I find an interest in spending time to dissect and analyze everything just to squeeze an extra half hour of screen time out of my phone.
So why? Why are YOU so interested in the battery life of your phone. I'm not looking to make fun of anyone here. Just curious what the obsession is all about and why you are so interested. How does it make your phone or your life easier and better. Maybe I'm missing something.
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Actually, battery life can have quite a few hours difference depending on your settings, apps, kernel settings and ROM you run. So yes, it does matter if you can get 3.5hrs on screen instead of 1.5hrs.
People don't want to have to carry their charger with them all the time in fear of their phone dying on them in the middle of the day.

For me it is just the simple fact that I can run my phone for almost 2 full days without a charge (not kidding either). But I would venture to say that for most, it is because of the whole reason why many are here. We're Tweakers and no I don't mean Meth addicts. We do it because we can. I don't undervolt at all but I do overclock my kernels a bit (not max) but have found a really nice balance that will give me plenty of time using my phone and not having to worry about charging. Yup, I use my phone.
I smile to myself when I see these screen shots and the line is smooth and flat. Not sure if you are a skier or not but a good analogy is if you see a Double-Black Diamond (expert/steep), there is something wrong. If you see a Blue-Square (intermediate/nice slope) then you are good to go. Green-Circle (begginner/very low gradiant) means that noting is running.
Btw moving to Q&A

I feel the same as the OP. I don't OC/UV for pretty much the same reasons. I don't care. I have run Juice Defender in the past on stock setting values because I was basically lazy and didn't feel like tweaking the sh*t out of it to get the "best" battery life. Not to mention I don't like that it literally turns off your cell radio and initializes it in incremental intervals. I have actually been running an app called One Power that is free on the Play Store and have found it does improve my battery life mostly when my device is idle. But I, like you, am hardly obsessed with getting the best battery life. I don't use extended batteries because I hate how they make the phone twice as thick and I tend to avoid anything non-OEM for obvious reasons. I'm basically happy if I can get through a day on a single charge. I do have a 2nd OEM battery I keep charged in case I don't have time to fully charge up. Our expectations of getting days worth of use on a single charge is just ridiculous and unrealistic. If I cared that much I'd switch to Verizon and get a RAZR Maxx. But that ain't happening anytime soon! Besides, not all phones are created equal so - what works for one person may not work for another. I feel discussions of battery life in ROM development threads are a waste of time and serve only to clutter and detract from development of the ROM. Apps, use, etc are huge variables and will vary greatly from one user to the next. So, when people say "battery life on this ROM is great!" I usually roll my eyes and ignore the post.
Sent from my Nexus 7

t3chn0s1s said:
... I have actually been running an app called One Power that is free on the Play Store and have found it does improve my battery life mostly when my device is idle. <SNIP> I feel discussions of battery life in ROM development threads are a waste of time and serve only to clutter and detract from development of the ROM. Apps, use, etc are huge variables and will vary greatly from one user to the next. So, when people say "battery life on this ROM is great!" I usually roll my eyes and ignore the post.
Sent from my Nexus 7
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Hey, can you shoot me a PM with more about that App. I'll check it out tonight but can you give me more info on it from a real-life user and not some Market desc/review.
Also, report those stupid posts in the Dev threads and we can delete those. I saw one the other day about 5 hours after a ROM came out (new thread and all) stating that the battery life was "Awesome!!!". How in the heck could you know after 5 hours of the ROM being posted (he was not a tester either), let alone being flashed. Rediculousness.

Woodrube said:
Hey, can you shoot me a PM with more about that App. I'll check it out tonight but can you give me more info on it from a real-life user and not some Market desc/review.
Also, report those stupid posts in the Dev threads and we can delete those. I saw one the other day about 5 hours after a ROM came out (new thread and all) stating that the battery life was "Awesome!!!". How in the heck could you know after 5 hours of the ROM being posted (he was not a tester either), let alone being flashed. Rediculousness.
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Sure. I just use the default settings the app comes with but you can tweak it to your liking. Will send you a PM shortly.
Edit: I couldn't agree with you more on the battery life postings 5 hours after a ROM has dropped. That's absolutely ridiculous and impossible to gauge so soon. You gotta give it at least a couple days to be able to accurately judge the battery life.
Sent from my Nexus 7

t3chn0s1s said:
Sure. I just use the default settings the app comes with but you can tweak it to your liking. Will send you a PM shortly.
Edit: I couldn't agree with you more on the battery life postings 5 hours after a ROM has dropped. That's absolutely ridiculous and impossible to gauge so soon. You gotta give it at least a couple days to be able to accurately judge the battery life.
Sent from my Nexus 7
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to use the app, root is mandatory? i didnt root my phone, i installed the app, and it shows all the required settings, but when I try to customize, it needs root, my question is, if we use the existing mods, i can use the app, without rooting the device. right?
TIA

atrix4nag said:
to use the app, root is mandatory? i didnt root my phone, i installed the app, and it shows all the required settings, but when I try to customize, it needs root, my question is, if we use the existing mods, i can use the app, without rooting the device. right?
TIA
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Yes. My dad uses the app on his unrooted Galaxy Nexus with no problems. You just can't tweak the settings unless you have root.
Sent from my Galaxy S III

t3chn0s1s said:
Sure. I just use the default settings the app comes with but you can tweak it to your liking. Will send you a PM shortly.
Edit: I couldn't agree with you more on the battery life postings 5 hours after a ROM has dropped. That's absolutely ridiculous and impossible to gauge so soon. You gotta give it at least a couple days to be able to accurately judge the battery life.
Sent from my Nexus 7
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Well it didn't take long for even this thread to turn into people discussing how to get better battery life out of their phone! haha. Figures eh?

I work a blue collar job so I need my battery to last all day. I'm not at a desk whee I can charge.......
Sent from my SAMSUNG-SGH-I747 using xda premium

My friend lost his son and since his phone didn't have juice, he couldn't call 911 fast enough. Had to plug in the charger for like 2 mins first. That's why.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

I'm generally indifferent about battery life and attempts to prolong it for 2 reasons.
1. The settings and customization done by the manufacturer are stable values tested and balancing between battery life and the features of the phone.
2.Everyone know what they're getting jnto when they buy a phone with ~4 inch screen,has LTE and top of the line features. It's rather obvious that battery life won't be great, if it isn't then you might as well just go back to the candy bar phones, if you expect the best and the newest AND battery life.I certainly didn't expect my phone to run for 10+ hours when I got it... and besides buying the best phone on the market and then turning everything off to conserve battery life just defeats the purpose. Just buy an extended battery, buy the extra battery OEM and bring a spare along, or have an external charger as well as a 2amp usb charger.
Edit: When I initially got the phone, it was getting 6-8 hours on a charge after a couple of months 12-14 hours per charge. The same thing happen on the JB OTA, Im getting between 10-18 hours depending on my Reddit, Twitter, Gmail and Engadget usage, though I have to admit there are sometimes problems with some apps preventing deep sleep and occasionally what seems to be memory leaks with apps constantly using the data connection.
Sent from my SGH-I747M using xda premium

I like pushing it to see how far the battery can go. I could make it through the day before, but with some compromises. I bought an extended battery and flashed a new rom (which came with some good kernel settings to mess with), and now I can keep everything on and go two days without a charge.
For me it's more about getting what I'm used to--recently switched to gs3 from an iPhone 4, which had amazing battery life. I got around 8 hours screen on with that and initially only 3 with the gs3. So I tweaked away and now it's back to what I expect!
Edit: also I tweaked my way to better battery life because I can--why settle for something that could be better?
Sent from my SGH-I747 using xda app-developers app

[Q] S3 Battery drain during use

I know there are hundreds of these threads but i was unable to find the information that I'm looking for. But my guess is there is no real answer to my question. But i've been wrong before. Please bear with me
Here goes.
I want to know how to maximize the battery when USING the phone. I dont care about wakelocks or sleep time etc.
I am interested in getting to max out the usage time.
For example when I stream radio and surf the net and text. My phone lasts 2 hours with max birghtness. That seems really short.
- I've done all that I know to minimize power consumption with turning off sync, settings, etc.
- I have tasker starting and stopping data during screen on/off.
- I have the phone UV and under clocked.
- I Limit my phone to 3G only, with no LTE
- Also signal is not a problem since I can stream and surf without an issue. With areas with poor reception. I don’t even use the phone really
-*I also have all the chats turned on include facebook, whats app, etc. Once again, phone is awake. and I'm concerned with its ON screen usage battery time.
- I even have the second CPU setting on conservative. (when set on ondemand it drains even faster)
But during usage, its terribly short! What can I do to prolong the life?
The battery was always like this and I dont believe its defective. With regular use, checking phone (once or twice every hour) can easily last a day. But during multitasking usage I notice the drain to be 49-59% per hour according to battery spy.
I know I can uninstall battery spy/BBS to conserve battery. But I'm looking for what some are reporting (4-5 hours of on screen usage time).
Looking for some guru-like advice Thansk in advanced

Personally, I get the best battery life out of the stock kernel of whatever particular ROM I'm running. I stick with tw based ROMs, and I greenify almost everything! I consistently get between 5 and 6 hours of "screen on" time with the stock battery.

You never said what ROM and kernel combo you're using. I know that I get 3 to 4 hours of screen time depending on the apps used and the connections utilized (wifi, signal strength, LTE or H+, etc). 2 hours definitely sounds low though. I'm using stock debloated ROM right now and stock kernel. I have not modified voltage or clocking in any way (yet).
Sent from my SAMSUNG-SGH-I747

DMF1977 said:
Personally, I get the best battery life out of the stock kernel of whatever particular ROM I'm running. I stick with tw based ROMs, and I greenify almost everything! I consistently get between 5 and 6 hours of "screen on" time with the stock battery.
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I didnt really notice any improvements on the KT747 vs stock kernel.
I greenify everything except for the messaging apps. But then again, when my screen is on, i want ot be using those apps.
aybarrap1 said:
You never said what ROM and kernel combo you're using. I know that I get 3 to 4 hours of screen time depending on the apps used and the connections utilized (wifi, signal strength, LTE or H+, etc). 2 hours definitely sounds low though. I'm using stock debloated ROM right now and stock kernel. I have not modified voltage or clocking in any way (yet).
Sent from my SAMSUNG-SGH-I747
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Its in my sig
Stock 4.1.1 JB
KT747
3G good signal.
Using tune in radio while texting on go sms and surfing using chrome with 7 tabs open

Bump

You're doing heavy multitasking!! It's going to eat the battery, sorry, but no one's going to post a magic "cure" to increase battery life! Buy an extended battery... Problem solved.

DMF1977 said:
You're doing heavy multitasking!! It's going to eat the battery, sorry, but no one's going to post a magic "cure" to increase battery life! Buy an extended battery... Problem solved.
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Websurf and radio or text and radio is just 2 tasks occuring.
Well I can say that running on Wifi, I can get regular battery life about 4-5 hours of use and over 20 hours of idle time.
The radio seems to be the main culprit, so the question is..... what can be done about that?
I'm asking because
- I flashed diff modems and seems to yield same results
- other S3 from my friends seems to last longer with multitasking
- signal....strong or weak seems to produce same drain.

Battery?
mikoal said:
Websurf and radio or text and radio is just 2 tasks occuring.
Well I can say that running on Wifi, I can get regular battery life about 4-5 hours of use and over 20 hours of idle time.
The radio seems to be the main culprit, so the question is..... what can be done about that?
I'm asking because
- I flashed diff modems and seems to yield same results
- other S3 from my friends seems to last longer with multitasking
- signal....strong or weak seems to produce same drain.
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Click to collapse
I've had the same problem. I couldn't get the same battery life as others I know. I always turn my GPS off if I didn't need to use it. Google now seemed to kill my battery so I stopped using it. But, the one thing I did notice is that the battery stats can be a little deceiving. If I left my phone off the charger and didn't use it for 10 hours and then started to play a game, it would look like I was getting good battery life as I would have about 60% battery left. Now if I played the game right after unplugging my phone, and then after the same 10 hours I'd be around 40%. Hopefully that makes sense.
One thing that I did do to overcome this was get an extended battery. It does add a little bulk, but now I can use my phone like I want and not have to worry about my phone dying on me at night. I can even forget to plug it in and still have battery the next day. For me I got the hyperion 4200 battery. The Zero Lemon seemed just to big for my tastes.
The other thing is also the ROM. At times I have found the same ROM but a different version exhibited different results. All ROM's offer something different so it is a give and take situation.
I hope this helped.

splxtreme said:
I've had the same problem. I couldn't get the same battery life as others I know. I always turn my GPS off if I didn't need to use it. Google now seemed to kill my battery so I stopped using it. But, the one thing I did notice is that the battery stats can be a little deceiving. If I left my phone off the charger and didn't use it for 10 hours and then started to play a game, it would look like I was getting good battery life as I would have about 60% battery left. Now if I played the game right after unplugging my phone, and then after the same 10 hours I'd be around 40%. Hopefully that makes sense.
One thing that I did do to overcome this was get an extended battery. It does add a little bulk, but now I can use my phone like I want and not have to worry about my phone dying on me at night. I can even forget to plug it in and still have battery the next day. For me I got the hyperion 4200 battery. The Zero Lemon seemed just to big for my tastes.
The other thing is also the ROM. At times I have found the same ROM but a different version exhibited different results. All ROM's offer something different so it is a give and take situation.
I hope this helped.
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Yea my gps only turns on when my map turns on via tasker. I also dont have google now on.
Ya i understand what you mean on the percentages.
Ive seen people wiht great battery life, i wanted to try to acheive that without an extended bat. I was wondering if there was somehting that was obvious, or some radio battery drain fix. (I even tried only 3G, and still drains)
Thanks

mikoal said:
Yea my gps only turns on when my map turns on via tasker. I also dont have google now on.
Ya i understand what you mean on the percentages.
Ive seen people wiht great battery life, i wanted to try to acheive that without an extended bat. I was wondering if there was somehting that was obvious, or some radio battery drain fix. (I even tried only 3G, and still drains)
Thanks
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It's a little hard to compare, but right now I'm on a 4.3 ROM and the battery life has been exceptional. Otherwise the next one that has been closest for me in terms of battery life has been Dandroid. Also, it's hard to judge a ROM after a day.
I guess I should have asked if you have tried or have any interest in a custom ROM.

splxtreme said:
It's a little hard to compare, but right now I'm on a 4.3 ROM and the battery life has been exceptional. Otherwise the next one that has been closest for me in terms of battery life has been Dandroid. Also, it's hard to judge a ROM after a day.
I guess I should have asked if you have tried or have any interest in a custom ROM.
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I tried customs like AOKP, PA, CM etc before. I dindt notice a gain in bat life.
I do enjoy's stocks stability so I would like to find a solution with my stock phone. But doesnt see like theres one....

mikoal said:
I tried customs like AOKP, PA, CM etc before. I dindt notice a gain in bat life.
I do enjoy's stocks stability so I would like to find a solution with my stock phone. But doesnt see like theres one....
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I've had a hard time getting really good battery life from the stock ROM. At best using greenify, I could prolong it a bit. If you are interested in a stock ROM with some tweaks, I always suggest S3Rx, or Dandroid if you want a slimmed down version without the bloat.
You can always try the power save mode as that does seem to help some, but you may experience some lag.

splxtreme said:
I've had a hard time getting really good battery life from the stock ROM. At best using greenify, I could prolong it a bit. If you are interested in a stock ROM with some tweaks, I always suggest S3Rx, or Dandroid if you want a slimmed down version without the bloat.
You can always try the power save mode as that does seem to help some, but you may experience some lag.
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Ive frozen most of the bloat, greenified everything, plus I unclocked and under volted it, so any lag I would feel from power safe wont affect me since i believe power save throttles to 1350 ish .