Related
At first my girlfriend had her Nexus S updated to ics and immediately we noticed a huge difference in how long her battery lasted and she is the furthest thing from a heavy user.
So when I heard that ics ws being released for our phone my first thought was i hope that what she experienced won't be what i do as we have a better phone right?
Well I am sad to say on a stock but rooted rom I experience the same lack of battery life as her.
Now I am no beginner to Android and have changed all sorts of settings available and nothing syncs on its own and when I unplug my phone from charging in the morning I will need to plug my phone in at night before bed as my phone will be completely dead.
I have to say I am very disappointed in the battery life of thr the stock rom and hope some good kernels make it out to help.
Sent from my SGH-T989D using XDA
Have you tried to find out which app/process is draining your battery? Better Battery Stats can help you identify what is using up your battery.
I had a big keep awake problem when i first installed stock ICS on my T989D. I did a full wipe of the phone and formatted my internal SD card (after backing things up of course), reinstall the same stock ICS and everything works great now. Battery life is about the same as before (stock GB w/ Synergy kernel), which is about 30 hours with moderate use.
Try CM 9. I get almost 2 days of battery life.
Sent from my SAMSUNG-SGH-T989 using xda premium
I've never had better battery life personally.
Sent from my SGH-T989D using Tapatalk 2
Though I am now on AOKP, I had great battery life on stock ICS as well. But, everything is subjective. How many email accounts are being synced? Do you have Facebook / Twitter / G+ updating every hour? Do you have news feeds continuously updating as well?
I have to agree with the poster above. Get Better Battery Stats and find the culprit draining your battery and work from there.
biggest thing draining the battery is the screen.
you can literally watch the battery usage drop 10-15% in a period of 10 to 15 minutes which is absurd when its set to low.
Sent from my SGH-T989D using XDA
Wait for kernel development. Its underway as we speak. It will make a significant difference.
Some battery saving tips:
- use juicedefender and set it to aggressive mode.
- use romtoolbox or other programs to underclock cpu frequency.
- also try using telus stock ics. Very good battery life.
Sent from my SGH-T989D using XDA
I have a brand new T989D (I'm new to Android, former iPhone user) and got the ICS upgrade the day I got it (9 days ago). Battery life is terrible, I'm lucky if I get 10 hours of moderate usage. The phone also tends to run very, very hot. Sometimes apps freeze and all I can do is either wait or, in some cases, remove the battery to reboot.
I'm open to any tips that will get this fixed! I haven't rooted yet (no time). I think I will try those wipe tools and reflash the stock ICS ROM.
First post btw - glad to have joined XDA!
Rooting takes 5 seconds. Follow the sticky. Use odin.
Run a custom rom.
Sent from my HTC Vision using xda premium
Android_Monsters said:
Rooting takes 5 seconds. Follow the sticky. Use odin.
Run a custom rom.
Sent from my HTC Vision using xda premium
Click to expand...
Click to collapse
Thanks, although a lot of howtos seem to be for GB since ICS only landed 9 days ago. Also there's a lot of conflicting information, so I prefer this one:
http : // galaxys2root.com/t-mobile-galaxy-s2/how-to-root-icsgb-on-t-mobile-galaxy-s2-sgh-t989/
Aaaannnd... rooted! \o/
anomy13 said:
Wait for kernel development. Its underway as we speak. It will make a significant difference.
Some battery saving tips:
- use juicedefender and set it to aggressive mode.
- use romtoolbox or other programs to underclock cpu frequency.
- also try using telus stock ics. Very good battery life.
Sent from my SGH-T989D using XDA
Click to expand...
Click to collapse
phone is a telus phone so its already using that rom.
setcpu us setup already but thinking perhaps to undervolt
Sent from my SGH-T989D using XDA
Stock, not rooted, my battery life is great. Something is using your battery up, and flashing some exotic kernel isn't going to change that. The stock kernel works fine. You'll want to find the root of the problem. Keep a real-time (or 1-5s interval anyway) eye on the phone's current (mA) usage, and when it's high for no apparent reason, you'll know that whatever is sucking your battery is doing it right then. That should help you characterize the problem. I've noticed when my WCDMA/GSM radio signal sucks, so does the battery life, so I either turn off the radio or switch to GSM only when I'm in that area. If your display is what's eating your battery, well a kernel can't stop that. Turn the brightness down, leave it on auto-brightness, or just deal with it if you need the display on all the time. But if tweaking and modding makes you happy, by all means...
firebane said:
biggest thing draining the battery is the screen.
you can literally watch the battery usage drop 10-15% in a period of 10 to 15 minutes which is absurd when its set to low.
Sent from my SGH-T989D using XDA
Click to expand...
Click to collapse
I have the same complaint. The "screen" battery usage is just unacceptable, especially compared to GB. My phone has been draining from a full charge for ~4.5 hours and my screen usage is 70% and battery is down to 65% with hardly 10 minutes of screen-on time.
I use an app called autostarts and you basically enable/disable apps that start running when certain events happen (phone startup, wifi being turned on, incoming call/sms/mms, other apps turning on, etc.). Just make sure you do your homework so you dont disable something critical. Hopefully this app works on ICS. You'll be surprised what different events make certain apps turn on automaticly. Screen, data/wifi, gps and bluetooth are the biggest battery drainers. No matter what Rom you are on if you don't keep control of those items your battery will drain fast. Keep ur screen on auto, let it go off @ 15 seconds ( you have to be pretty used to your phone for that setting not to annoy you), turn OFF your data or wifi when not in use. With bluetooth and gps...well u know that when you use them your battery is gonna drain faster than normal...just keep that in mind. Its all pretty much common sense.
I'm not going to tell you how much battery time I get cuz its nonsense. There are times my phone lasts till the next day and others Im charging it by sundown. Then again Im still on Juggs n Darkside kernel and Im gonna wait a bit still b4 I make the switch. Also don't go by what other people say on battery life cuz if you might not get the same results on that ROM. Everyone of our devices is unique and acts different. Everyone user uses their phone different. You can't define "light, moderate, heavy" use so don't go by that either.
Sent from my Blutiful SGSII w/Juggs.
Duel core vs single core
Larger brighter screen
Processor is clocked higher
Radio is connected to hspa+ network
Tw vs Samsung.
These things make a difference
Sent from my Galaxy Nexus using xda premium
After upgrading to ICS stock unrooted battery life sucked (5-6hrs). I did the whole remove battery, factory reset and still sucked.
Broke down rooted (still stock), downloaded batterycalibration from play, followed the instructions. Easily get over 24hrs before having to charge again. and when I say easily, I mean I still have over 25% left.
Get a gnex extended....maybe a bad battery
Sent from my SGH-T989 using xda premium
AOKP build 40, latest eugene373 streamline kernel. I went 9 hours earlier it earlier and it was still at 70% You will see a difference!!
Sent from AOKP Goodness :-D
mrrobc97 said:
Im not going to tell you how much battery time I get cuz its nonsense. .........Everyone user uses their phone different. You can't define "light, moderate, heavy" use so don't go by that either.
Click to expand...
Click to collapse
Bingo. Vastly different battery life between ROM's is generally BS. Every once in a great while one of these threads has merit but typically someone saying ROM X had "Killer" battery life is clueless and drinking the koolaid. Then a placebo effect takes place. And definitely someones "Heavy" use is subjective. If someone says they get a day out of an android phone they are not heavy users by my definition. It doesn't happen with heavy use. Perhaps the Razr Maxx or another phone with a very large battery but I've had 5 Android phones. If I get past noon it's because I am not using my phone that much and forget about a full day. It's never happened in the 4 years I've used google OS phones. Never.
jonjon68 said:
Bingo. Vastly different battery life between ROM's is generally BS. Every once in a great while one of these threads has merit but typically someone saying ROM X had "Killer" battery life is clueless and drinking the koolaid. Then a placebo effect takes place. And definitely someones "Heavy" use is subjective. If someone says they get a day out of an android phone they are not heavy users by my definition. It doesn't happen with heavy use. Perhaps the Razr Maxx or another phone with a very large battery but I've had 5 Android phones. If I get past noon it's because I am not using my phone that much and forget about a full day. It's never happened in the 4 years I've used google OS phones. Never.
Click to expand...
Click to collapse
Yes exactly, I hate when people post screenshots of their phone getting 24+ hours, I'm there thinking "well obviously they don't use their phone alot". There is no way in hell i could get 24 hours no matter what rom/kernal I use. Im just happy when my phone can make it till I get home at night
Sent from Flip's SGS2
I'm a new android user. I'm using the LiquidSmooth 4.2.1 JellyBean Beta 2. The problem I'm having is with my battery life. I seem to average about 5-7 hours of battery life which is crazy if you ask me. This isn't a ROM issue either because it was the same way on the stock 4.1.1 Android OS.
I'm using JuiceDefender now and that seems to help a little. I know things like disabling 3G and WiFi can help but I use these things often. Can anyone offer any useful suggestions to extend my battery life?
Thanks in advance
Sent from my SPH-L710 using Tapatalk 2
davelikestacos said:
I'm a new android user. I'm using the LiquidSmooth 4.2.1 JellyBean Beta 2. The problem I'm having is with my battery life. I seem to average about 5-7 hours of battery life which is crazy if you ask me. This isn't a ROM issue either because it was the same way on the stock 4.1.1 Android OS.
I'm using JuiceDefender now and that seems to help a little. I know things like disabling 3G and WiFi can help but I use these things often. Can anyone offer any useful suggestions to extend my battery life?
Thanks in advance
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
The quickest way to answer this is to suggest you use search. There are already dozens of posts/threads about this. A lot depends on signal and applications running. Do some reading, more than likely you will find the answer already posted.
Sent from my SPH-L710 using Tapatalk 2
davelikestacos said:
I'm a new android user. I'm using the LiquidSmooth 4.2.1 JellyBean Beta 2. The problem I'm having is with my battery life. I seem to average about 5-7 hours of battery life which is crazy if you ask me. This isn't a ROM issue either because it was the same way on the stock 4.1.1 Android OS.
I'm using JuiceDefender now and that seems to help a little. I know things like disabling 3G and WiFi can help but I use these things often. Can anyone offer any useful suggestions to extend my battery life?
Thanks in advance
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
Absolutely something wrong with your phone and or battery. Had an S3 since July '12, rooted and ran FreeGS3 and had all day battery. Lost that just before Xmas (actually stolen) and got another S3, and this time decided not to do all that ROMming and flashing and stayed stock 4.1.
Same all day battery life with WiFi on, 3G on, Google/Gmail Sync on (i like my push Gmail), several email accounts polling, etc. I just use my phone, no gimping with apps like JuiceDefender (which i detest with a passion).
Heres a question, what's your screen on time? Cuz if your phones dead at 7 hrs with 5 hrs screen on your first option is to adjust screen settings and the second and 3rd option are put the phone down sometimes and/or keep a charger handy
Sent from my SPH-L900 using Xparent ICS Tapatalk 2
Extended battery
Sent from my Samsung Galaxy s3
Depending on how often I use my phone I get anywhere between 9-11 hours on light to moderate use. Meaning listening to music, Twitter, Instagram, email, and texting
It could be the 4.2, because it isn't completely "stable" yet. I'm on stock 4.1 rooted, with screen brightness on I'd say 30-40%, with light to moderate use and can get 11-15 hours easily. This includes texting, maybe a few phone calls, lots of music, and some Facebook or XDA on a WiFi connection.
Sent from my SPH-L710 using xda app-developers app
Well after checking out the Kernelizers thread and flashing the KT kernel onto my Galaxy S3 and installing ROM Toolbox, my battery life has greatly improved. I also installed DS Battery Saver Pro. I just came to work. Left at 7:05AM, put on some music, and by the time I got to work at 8:05AM, my phone battery only dropped 3%. Normally it would drop at least 10% in this time so what I did is clearly working
davelikestacos said:
Well after checking out the Kernelizers thread and flashing the KT kernel onto my Galaxy S3 and installing ROM Toolbox, my battery life has greatly improved. I also installed DS Battery Saver Pro. I just came to work. Left at 7:05AM, put on some music, and by the time I got to work at 8:05AM, my phone battery only dropped 3%. Normally it would drop at least 10% in this time so what I did is clearly working
Click to expand...
Click to collapse
I would uninstall DS Battery Saver Pro. If you did check out that thread, the phone already deep sleeps. Mine does with no additional app assistance. Went 38+ hours and still had 25% battery life left.
I can't possibly be the first one to create a thread about this. Yet I have been searching and can't find it. So here I go.
I obviously have a T-mobile GS3 T-999. I was on stock unrooted 4.1.1 just fine with great battery life. I updated to 4.1.2 stock unrooted and now my battery life is terrible. I can't even come close to lasting all day like I could before. My habits haven't changed. I haven't installed anything else since they update. I have rebooted and power cycled several times, no change.
Anyone else have a reduction in battery life since upgrading to 4.1.2? Is there anything I can do without going beyond the usual? I have been using power save mode since I bought the phone. So it was that way before and after the update.
Rooting and flashing a custom Rom will increase battery life tremendously. If you don't want to root then disable all the bloat ware. This will speed up phone and increase battery.
Sent from my SGH-T999 using xda app-developers app
Haven't been able to get awesome battery life on my end either. Played with all kernels available even going backwards to kernels I know gave good life on 4.1.1... Something internal is causing it, it seems. I don't get wake locks that I don't cause my self, just battery drops faster now compared to what it did before.
Sent from my SGH-T999 using xda premium
I suspect that the premium suite, which added multi window and a bunch of new apps and features, is probably causing the increased battery usage. With the increasing amount of bloat Samsung is stuffing into their ROMs, decreased battery life is expected.
The life on 4.1.2 is terrible over all not sure why best bet would be routing flashing a custom rom or you could try playing with kernels but those are tricky business. I feel 4.1.1 Roms get the best battery though I'm on 4.2 and not very good battery life on that either
Sent from my SGH-T999 using xda app-developers app
I flashed a number of 4.1.2 roms and found out that for some reason the cpu stays at the max clock constantly. No clue why.. Maybe that's the issue?
Doesn't matter to me at the end since I got a lemon
Yeah I'm not really liking it much. I would do better on 4.1.1
These are my results on Stockorama v2. Stock Kernel.
I don't think it's that bad but I wish it was better.
Sent from my SGH-T999 using xda app-developers app
IXChicharitoXI said:
Yeah I'm not really liking it much. I would do better on 4.1.1
These are my results on Stockorama v2. Stock Kernel.
I don't think it's that bad but I wish it was better.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
That's actually quite good compared to what I get with the latest CM 10.1 nightly.
Sent from my SGH-T999 using Tapatalk 2
klin1344 said:
That's actually quite good compared to what I get with the latest CM 10.1 nightly.
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
That's terrible on both accounts lol. I usually get 18 hours with that battery time. I remove all the bloat I mean all of it. I have maybe 20 apps total in my app drawer, I disable all the sync besides contacts, gmail, and calender. But still have drain. On stock kernel it was bad and deep sleep was hardly achieved with no apps running in the back ground. I'm gonna Odin root66 md5, tomorrow and see if it helps. Other then that I'm going back to 4.1.1. I'll report back tomorrow or Friday with results.
Sent from my SGH-T999 using xda premium
Well, I don't plan on rooting or using a custom rom any time soon. But I am hoping to find out what I can tweak to get my battery life back to what it was. I am guessing I don't have the option to go back to 4.1.2 using Kies. And I hear that 4.2 has poor battery life as well, so now I don't have that to look forward too either.
I'm on Stockorama V1 and still had 50% battery when I went to bed this morning (I work nights). The first day after I flashed it the battery was pretty bad, mostly due to wake locks from the Media Server, but that was an easy fix with an app from the Market. I would actually say my battery life is a little bit better now than it was on 4.1.1.
Sent from my SGH-T999 using xda premium
I don't know if Sammy ever solved it, but iwith past updates the media scanner would hang up and drain batteries quick. Some had their phones heat up.
Another culprit can be that when going to a different android version, it may handle some data differently, causing hang ups when it runs into something they didn't plan for.
In either of these cases, its best to do a full wipe (backup first) and then reinstall your apps. Don't restore them from backup as that's just like not wiping in the first place.
Then wherever possible, import your data through the app itself. Not many do this but some do. Contacts is one.
I know it can be a pain, but it can help a lot. Plus you wind up cleaning out stuff you don't use or need anymore.
I always wipe data when updating , unless its to the same android version (4.1.1 to 4.1.1). Going to 4.1.2 shouldn't be to big a deal, but you never know.
Another thing to try:
If you verify media server/scanner is a oroblem, copy all your music, pics, vids, etc to your computer and wioe it from the phone. Then reboot and wait a few min to see if its acting ok. Then copy your files back, wait a few min and reboot again. Hopefully it'll calm down after this.
Hope that's more helpful than confusing!
Sent from my SGH-T999 using xda premium
You wonder why carriers take so long to release an update because usually people would start complaining. It's not 4.1 so don't expect the same thing, usually when there's an update things are the never the same. It was the same thing the jump from ics to jelly bean, when creating voltages for batteries I don't think companies anticipate all the extra stuff a update can bring this is still kinda of an ics phone.
Sent from my SGH-T999 using xda app-developers app
My battery life went up so much. I'm on stock but rooted. I usually drain my battery before the day is over. Now I'm going over a full day.
Sent from my SGH-T999 using xda app-developers app
I was able to get 32 hours on average with CM 10.1 and KTunez kernel. I recently switched to the Stock latest TW and I'm seeing 22-24 hours with the KTunez kernel. I am rooted and removed all the bloatware.
I'm running stock rooted for now. I hardly have even noticed any battery drain on my phone. Stock Battery, nothing really battery-heavy, no customer kernels. However I dont really see the use of this Sidebar thing. Its like
HAY GUIZ LETS PUT THE UBUNTU UNITY BAR ON ANDROID HUEHUEHUEHUE SO CLEVER!
But in all seriousness, I seem to be running just fine. So I cant really vouch for Multiwindow being the culprit. I may run some tests though.
I don't remember what it was before. But usually by the time I went to bed, it was in the 40's and sometimes the 30's if it was a heavy day for me. Now it drops into the teens.
I see that as of today, the phone has been discharging for just under 4 hours and is already at 88%. And I haven't even used the phone in any way today before checking it right now. Shows "Google Services" as 41% of the battery use. But that only shows CPU total at 33 seconds. Next item is "Device Idle" at 15%. So I don't understand why it's down to 87% in 4 hours of basically doing nothing.
Though I don't think that info alone means anything to me right now as I don't recall what that info was like on 4.1.1, only that my battery % by bedtime is significantly lower than when on 4.1.1
I was just curious how many other Tmobile people experienced the same thing when going from 4.1.1 to 4.1.2. All stock that is.
I don't have time to deal with wiping the phone clean and starting over. But I may try that someday. My phone never gets hot and I never see the CPU getting much use at any given time.
I do wonder about facebook though. I think it also did an update of it's own around the same time I did the 4.1.2 update. I will check into that.
I have found battery life to be about the same, at first it wasn't that great but now I was able to get over 2 days with minimal use 4g on all day. With normal I use I still get better battery life that 4.1.1
Sent from my SGH-T999 using xda app-developers app
aamir123 said:
I have found battery life to be about the same, at first it wasn't that great but now I was able to get over 2 days with minimal use 4g on all day. With normal I use I still get better battery life that 4.1.1
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I am confused. So it wasn't good and then it just became good over time? Or have you made some setting changes?
xenon2000 said:
I am confused. So it wasn't good and then it just became good over time? Or have you made some setting changes?
Click to expand...
Click to collapse
Well when I first updated it was stock and battery life didn't seem very good but I've since flashed a custom rom and all is well. Also I think stock rom got better battery with use, maybe had to settle in? But within 3 days of using 4.1.2 my battery was back to normal again.
Am I the only person who notices that all these battery save kernels aren't working for them. I flashed CM and I have been getting amazing battery life (13+ hours) with moderate usage, but with leankernel for example, I only get 9 hours max and my phone heats up a lot.
Phantomhive said:
Am I the only person who notices that all these battery save kernels aren't working for them. I flashed CM and I have been getting amazing battery life (13+ hours) with moderate usage, but with leankernel for example, I only get 9 hours max and my phone heats up a lot.
Click to expand...
Click to collapse
Not working for "them"? Or for you? Of course they do not work for everyone. They also may work well for one ROM but poorly on another.
Well I was curious how kernels worked for others. Sorry.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Depends on the device. "All hardware is created unequal" -rani9990
Sent from my SGH-I747 using Tapatalk 2
That greenify app works pretty well for me...
Now that is post 10... can I post in developers now?!?
G4L4><y said:
That greenify app works pretty well for me...
Now that is post 10... can I post in developers now?!?
Click to expand...
Click to collapse
What does the greenify app do exactly
Phantomhive said:
What does the greenify app do exactly
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=38192418
Sent from my GT-P7510 using Tapatalk 2
jasvncnt1 said:
http://forum.xda-developers.com/showthread.php?p=38192418
Sent from my GT-P7510 using Tapatalk 2
Click to expand...
Click to collapse
No two phones work the same. I've had my S3 for about 2 weeks and have run Stock-rooted, and e few custom roms. I have 4 email accounts-pushed, 10 screen widgets, and always texting, web surfing, etc. I'm currently at 14 hours with 49% remaining. When I work in spreadsheets, and use a a reader, (usually 2 hours each) I still get 14-16 hours, no matter what rom/kernel I've been running
Jep56 said:
No two phones work the same. I've had my S3 for about 2 weeks and have run Stock-rooted, and e few custom roms. I have 4 email accounts-pushed, 10 screen widgets, and always texting, web surfing, etc. I'm currently at 14 hours with 49% remaining. When I work in spreadsheets, and use a a reader, (usually 2 hours each) I still get 14-16 hours, no matter what rom/kernel I've been running
Click to expand...
Click to collapse
I guess mine is just a piece of crap :/
Phantomhive said:
I guess mine is just a piece of crap :/
Click to expand...
Click to collapse
You just need to find the ROM and kernel combo that works well with your phone. I have tried ROMs/kernel combos that some get excellent battery life from but mine is horrible and vice versa. Keep testing as it is a trial and error type thing. Also your kernel settings can make huge differences. What works for one may not work well with your phone. Different settings on the same kernel may net you excellent results.
Sent from my SAMSUNG-SGH-I747
I have noticed battery life tends to vary wildly depending on ROMs and even people. I guess I don't use my phone all day long, but on a TouchWIZ 4.1 ROM, the app "Battery Left" (from Play Store, its free) reports that I can get up to 46 hours on a full charge, based on my typical usage patterns (and if I use Greenify). On the other hand, I have used an AOSP 4.2.2 ROM in the past (such as LiquidSmooth), and Battery Left will tell me, after a few days, that I will get about 25 hours on a full charge (again, with Greenify). I have to do more testing, but there is definitely some difference between ROMs and battery life...
Phantomhive said:
I guess mine is just a piece of crap :/
Click to expand...
Click to collapse
Guess mine is too...
I read this thread & thought battery life has as much to do with what's running in terms of synching, background data, services, connectivity etc.
http://shopping.yahoo.com/news/making-your-smartphone-battery-last-longer-214520188.html
I am using one of the unofficial CM11 ports that is supported nightly and have been getting terrible battery life. I hate to ask the question which is the "best", but what would be a good kernel to flash?
I do not do much heavy gaming either. In fact, I do not do any gaming. Just casual browsing.
codemonkey98 said:
I am using one of the unofficial CM11 ports that is supported nightly and have been getting terrible battery life. I hate to ask the question which is the "best", but what would be a good kernel to flash?
I do not do much heavy gaming either. In fact, I do not do any gaming. Just casual browsing.
Click to expand...
Click to collapse
Well before I suggest any kind of "good kernel to flash" I want to make note of something. If you're running a nightly of an unsupported version of CM11 then don't expect great battery life. This has little to do with what you're doing on the phone but the purpose of nightly's is to have users report bugs. Many of these bugs are the kind that can drain battery rather quickly. So the first thing I'd do is find a stable AOSP rom to run on before thinking about kernels.
That being said, a kernel universally accepted as "good" is KT747 by Koonsez
n_alvarez2007 said:
Well before I suggest any kind of "good kernel to flash" I want to make note of something. If you're running a nightly of an unsupported version of CM11 then don't expect great battery life. This has little to do with what you're doing on the phone but the purpose of nightly's is to have users report bugs. Many of these bugs are the kind that can drain battery rather quickly. So the first thing I'd do is find a stable AOSP rom to run on before thinking about kernels.
That being said, a kernel universally accepted as "good" is KT747 by Koonsez
Click to expand...
Click to collapse
Thanks for the reply bud. I personally like supporting the nightly versions of ROMs but I wasn't thinking the reporting that I do is causing that much of a battery drain.
I may consider today to go to a stable AOSP ROM that isn't nightly.
Sent from my Nexus 7 using Tapatalk 4
I have been flashing ROMs now for the past 4 years. I have never really got into the nitty gritty of anything specific but probably best I do. One question I had in regards to all these ROMs is, do they not come with their own Kernel which I would have assumed is the best recommended for the given ROM. When i see battery life of 14+hrs with room to go, I must be doing something wrong.
Thank you for any info in advance.
poor battery life
i have CM 10.2 4.3.1 in my SIII and all i can get is 6 hours of battery life. how i can fix this?¿ also my phone gets hot vey quick sometimes without use it.
Greetings from Venezuela
codemonkey98 said:
I am using one of the unofficial CM11 ports that is supported nightly and have been getting terrible battery life. I hate to ask the question which is the "best", but what would be a good kernel to flash?
I do not do much heavy gaming either. In fact, I do not do any gaming. Just casual browsing.
Click to expand...
Click to collapse
Hello. Not sure if this is the correct section or not. But here goes.
I was running rootbox 4.2.2 and kt747 kernel. Along with baconatorx something script to apply settings to second core. I was getting roughly 3 to 4 hours screen on time. Great!
Recently I installed slimbean 4.3.1 after hearing so many people say it has the best battery life. With the according 4.3 kt747 kernel. I applied the same tweaks etc but at best I can get 2 hours of screen on time. Maybe there is a new script I'm unaware of.
I use my phone frequently but not heavily. Just phone calls SMS and abit of chrome. Can anyone give me some advice. Or someone with some working settings with the combo I have? Or should I just go back to what I had?
Any help would be great.
Sent from my SAMSUNG-SGH-I747 using XDA Premium HD app
Anyone?
Sent from my Nexus 7 using XDA Premium HD app
See my posts on this page for my set and the battery life I am getting. Maybe these could help you:
http://forum.xda-developers.com/showthread.php?t=1969201&page=386
diablo009 said:
See my posts on this page for my set and the battery life I am getting. Maybe these could help you:
http://forum.xda-developers.com/showthread.php?t=1969201&page=386
Click to expand...
Click to collapse
Thanks. Just tried out your settings on my setup with the badass gov and slightly more under clock. And that's all you done?
I'm on 34% and only 1 hour 25 min screen on time.
And its 3rd on the list in battery stats.
I might be wrong but should cell stand by and phone idle be on top for battery usage? This is driving me nuts I have to carry my damn charger during the day.
I will report back after a few cycles.
Sent from my SAMSUNG-SGH-I747 using XDA Premium HD app
ronedogg said:
Thanks. Just tried out your settings on my setup with the badass gov and slightly more under clock. And that's all you done?
I'm on 34% and only 1 hour 25 min screen on time.
And its 3rd on the list in battery stats.
I might be wrong but should cell stand by and phone idle be on top for battery usage? This is driving me nuts I have to carry my damn charger during the day.
I will report back after a few cycles.
Sent from my SAMSUNG-SGH-I747 using XDA Premium HD app
Click to expand...
Click to collapse
What I am putting down below are purely from my view and my observations over the past few years.
There could be multiple issues:
1. Your battery might be getting old. On 2.8 I set the record at a whopping 7 hours display time (battery less than 6 months old). On the same ROM I was getting barely 2-3 hours (battery near to or over 18 months old) a few days before I flashed 4.1. So when I got 3h45m today, I consider that a pretty good battery.
2. You signal levels at home, the areas you roam, and at your work/school. These too kill more. Example, battery discharges slowly (when idle) at home compared to when I am at work cos of low signal levels at my work place.
3. Maybe there are too many background apps.
Example: Kik, Facebook, Google Plus. These are known battery hogs. You either uninstall these or freeze them when not needed. Your battery will thank you.
4. Kernels don't suit every phone. What works for me might not work for you. Example: Kernel of 2.8 people loved. But for me it drained battery crazy. I used Kernel C of prior version of ROM. Try out multiple, but give atleast 3 days to validate each.
5. Most importantly, do no UC too much. A phone spending 10 seconds at 1000 MHz could need 30 seconds at 800 MHz to get the same task done, and this could actually drain your battery more. For me, after using multiple phones on multiple ROMs, I found speeds between 800-1200 quite satisfactory. This is the reason my clock is normally set to 1000 as max.
6. I barely UV. UVing a little aggressively might seem to extend battery a little, but in the process it kills the phone processors and other parts. This is because they are getting strained working with lower currents than recommended. Also it is a normal practice to actually send a little more than needed currents to phone processor to avoid phone being shut off.
Our devs here who make kernels already reduce the voltage to sustainable levels to improvise on the kernel. This is also one reason why I don't bother about UVing any more.
Sorry about being lengthy and boring :victory:
diablo009 said:
What I am putting down below are purely from my view and my observations over the past few years.
There could be multiple issues:
1. Your battery might be getting old. On 2.8 I set the record at a whopping 7 hours display time (battery less than 6 months old). On the same ROM I was getting barely 2-3 hours (battery near to or over 18 months old) a few days before I flashed 4.1. So when I got 3h45m today, I consider that a pretty good battery.
2. You signal levels at home, the areas you roam, and at your work/school. These too kill more. Example, battery discharges slowly (when idle) at home compared to when I am at work cos of low signal levels at my work place.
3. Maybe there are too many background apps.
Example: Kik, Facebook, Google Plus. These are known battery hogs. You either uninstall these or freeze them when not needed. Your battery will thank you.
4. Kernels don't suit every phone. What works for me might not work for you. Example: Kernel of 2.8 people loved. But for me it drained battery crazy. I used Kernel C of prior version of ROM. Try out multiple, but give atleast 3 days to validate each.
5. Most importantly, do no UC too much. A phone spending 10 seconds at 1000 MHz could need 30 seconds at 800 MHz to get the same task done, and this could actually drain your battery more. For me, after using multiple phones on multiple ROMs, I found speeds between 800-1200 quite satisfactory. This is the reason my clock is normally set to 1000 as max.
6. I barely UV. UVing a little aggressively might seem to extend battery a little, but in the process it kills the phone processors and other parts. This is because they are getting strained working with lower currents than recommended. Also it is a normal practice to actually send a little more than needed currents to phone processor to avoid phone being shut off.
Our devs here who make kernels already reduce the voltage to sustainable levels to improvise on the kernel. This is also one reason why I don't bother about UVing any more.
Sorry about being lengthy and boring :victory:
Click to expand...
Click to collapse
Lengthy but not boring at all. ill try to add some more info on my phone and its setup.
1. my phone is less then 6 months old. 2.8 what? kernel version? 7 hours id poop a brick. lol
2. my signal strengths haven't changed at home or at work. I work outside lol however at home i do have a mountain behind me. literally a cliff side and i always got half signal since i got the phone.
3. i got the background stuff kicked. got greenify running and i have it hibernating just about everything it will let me.
4. ok this brings me back to what i was thinking originally. maybe i should just go back to what i had with rootbox 4.2.2 + kt747 kernel and scripts.... was trying to avoid this lol. 4.3 must just not jive with my phone.
5. i do have my voltages under volted 50 across the board. i have had the odd random reboot. my clocks were always either 1.2 or 1.0 ghz. never did oc or uc too much.
i will set my voltages back to stock after a few cycles.
also i run fs trim. supposed to stop lag or something. i been running it on all my devices so i figured i may as well follow suit with my s3. i also renamed mpdesion.
my standby time is still good. ill get 2 days on weekends when im not using phone much. but screen time is still less then 2 hours.
i just finished the first full charge with what u recommended. so lets see. heading out for 10 hours here soon. lets see how it does!
My bad! All my references to ROM or kernel versions pertains to Intergalatic ROM and its kernels. Sorry, I should've mentioned that.
diablo009 said:
My bad! All my references to ROM or kernel versions pertains to Intergalatic ROM and its kernels. Sorry, I should've mentioned that.
Click to expand...
Click to collapse
Thanks for your time. I've tried your settings for a few cycles. 3+ hours battery. And 2 days total. Not bad!
I have a question. I'm reading on that intergalactic ROM, and it says about certain bootloaders. One is non reverse able or something. I've read on it and I can't figure out what one to use. My phone is on telus if that means anything.
Sent from my Nexus 7 using XDA Premium HD app
ronedogg said:
Thanks for your time. I've tried your settings for a few cycles. 3+ hours battery. And 2 days total. Not bad!
I have a question. I'm reading on that intergalactic ROM, and it says about certain bootloaders. One is non reverse able or something. I've read on it and I can't figure out what one to use. My phone is on telus if that means anything.
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
I used the first one (reversible):
Option A: MJ2 bootloader and MJB modem
diablo009 said:
I used the first one (reversible):
Option A: MJ2 bootloader and MJB modem
Click to expand...
Click to collapse
Thanks man. I downloaded the mj2 boot loader and mjb modem package. Do I flash this prior to the ROM? And say I choose to go back to slimbean, do I have to do anything to reverse this?
Sorry I just never had to do this on my nexus 7 or ace Android devices . I just wanna make sure I cover all bases. I kinda miss a two based ROM and after hearing your success with battery on it. Its obvisouly the ROM and kernel combo for me. Games I could care less about, I use my phone for texting Facebook and browser. And I go long periods without access to charger.
Thank you so much for all your assistance.
ronedogg said:
Thanks man. I downloaded the mj2 boot loader and mjb modem package. Do I flash this prior to the ROM? And say I choose to go back to slimbean, do I have to do anything to reverse this?
Sorry I just never had to do this on my nexus 7 or ace Android devices . I just wanna make sure I cover all bases. I kinda miss a two based ROM and after hearing your success with battery on it. Its obvisouly the ROM and kernel combo for me. Games I could care less about, I use my phone for texting Facebook and browser. And I go long periods without access to charger.
Thank you so much for all your assistance.
Click to expand...
Click to collapse
Yes. Following the same sequence of steps mentioned there. I too did the same.
And rest assured, once you are on this, I don't see a reason you'd even want to go back
Until this release neither we had to do all this boot loader thingy. But with the latest release Samsung did something that created all this mess.
diablo009 said:
Yes. Following the same sequence of steps mentioned there. I too did the same.
And rest assured, once you are on this, I don't see a reason you'd even want to go back
Until this release neither we had to do all this boot loader thingy. But with the latest release Samsung did something that created all this mess.
Click to expand...
Click to collapse
Hey. When I try to flash the boot loader and modem zip it gives me a error in twrp saying it can't load the zip.
Sent from my Nexus 7 using XDA Premium HD app
ronedogg said:
Hey. When I try to flash the boot loader and modem zip it gives me a error in twrp saying it can't load the zip.
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
1. Try updating your TWRP.
2. Try downloading the zip again, and verify the zip.
diablo009 said:
1. Try updating your TWRP.
2. Try downloading the zip again, and verify the zip.
Click to expand...
Click to collapse
Thanks. This wasn't my issue. I needed the i747m boot loader mk5. Intergalactic thread op directed me to it in the s3rx thread.
About to install here soon, backing up and doing a nandroid just incase.. Im going to go With kt kernel and your simple adjustments.
I see u were using 1 15 kernel. I got 1 18. Shouldn't make a difference?
What are u getting now for screen time?
ronedogg said:
Thanks. This wasn't my issue. I needed the i747m boot loader mk5. Intergalactic thread op directed me to it in the s3rx thread.
About to install here soon, backing up and doing a nandroid just incase.. Im going to go With kt kernel and your simple adjustments.
I see u were using 1 15 kernel. I got 1 18. Shouldn't make a difference?
What are u getting now for screen time?
Click to expand...
Click to collapse
That was very dangerous. Sorry, I too should've asked. Had it gone through, you could've ended up bricking your phone. Whew! Missed by a whisker!
And I flashed 1.15. I am not sure of 1.18 'cos I haven't installed it. But newer version should be better.
diablo009 said:
That was very dangerous. Sorry, I too should've asked. Had it gone through, you could've ended up bricking your phone. Whew! Missed by a whisker!
And I flashed 1.15. I am not sure of 1.18 'cos I haven't installed it. But newer version should be better.
Click to expand...
Click to collapse
Hey!
So I ended up leaving that tw ROM for now. I made a nandroid so I will try it again.
But I'm here to report my new setup and battery stats.
I'm running slimkat rc2 with the latest ktoonsez kernel.
I'm using your settings in ktweaker but I ended up back on koonservative gov and enabled hotplugging.
7h screen on time. WiFi on the whole time. Browsing forms reading emails.
Lag free 100%
Sent from my SAMSUNG-SGH-I747 using XDA Premium HD app
Do I need to post a screenshot for proof? Or does it really matter lol
Sent from my SAMSUNG-SGH-I747 using XDA Premium HD app
ronedogg said:
Do I need to post a screenshot for proof? Or does it really matter lol
Sent from my SAMSUNG-SGH-I747 using XDA Premium HD app
Click to expand...
Click to collapse
We are all so used to getting good battery, it hardly matters anymore, unless someone posted a hard-to-believe 10 hours on stock battery.