Develop Bugs

[CM7] Battery drain fix

I found this thread on Desize HD forum:
http://forum.xda-developers.com/showthread.php?t=984337&page=6
then i wonder can we get some information to know where the problem come from?=> we can fix the battery drain issue on all GB build. Hope it help out devs. cheer
Sorry for my bad english

What drain?
Are there really so many problems with drainage on CM7/GB builds?
2d, 3h, 25m on battery with 60% left.
The first CM7 build i used is the one in my sig. I'm amazed by the lack of problems with this build

The only drain that's still ongoing is bluetooth on standby drain AFAIK. This DSP issue is not related to the HD2, thus I don't think it's valid to implement. With bluetooth turned off and heavy usage, I get roughly 2 days out of my device also... I really don't think the drain is a big issue. Honestly, the biggest issues is (And it's not much): Robot voice once in a while, some Wifi issues (EAP mostly), Wakeup lag and BT drain on standby.

the drain is related to the toolchain used to compile our kernals and roms?). I however can do easily 3 days with out charging on android, using the same setup as KrewsialNL

Actually
Actually, i get pretty horrible battery life across all builds...
it could be that I have a v1 TMOUS hd2 though... something is weird with it. I always get random energy spikes (even with sync off)
can't get more than 14-18 hours...

My battery drainage is fine using the Typhoon rom. I think some people are expecting a little too much out of their batteries.

It's only 1230mah if it was 1500mah it would have been way better.

KrewsialNL said:
Are there really so many problems with drainage on CM7/GB builds?
2d, 3h, 25m on battery with 60% left.
The first CM7 build i used is the one in my sig. I'm amazed by the lack of problems with this build
Click to expand...
Click to collapse
How on EARTH are you getting that long out of your battery?
Are you using the phone at all?
I've used loads of different builds and never come even close to half that battery life, in fact no more than about 20hours MAX with light usage.
I am using Juice Defender to disable my WiFi and Data when the phone is not in use too.
Any tips?

I have run all the latest GB builds and I also get this weird spike (around 70mA to 100mA) usually when I leave the phone overnight (not charging) and this drains my battery down to almost empty by morning. This is with bluetooth off and wifi on. No apps installed on the phone.

KrewsialNL said:
Are there really so many problems with drainage on CM7/GB builds?
2d, 3h, 25m on battery with 60% left.
The first CM7 build i used is the one in my sig. I'm amazed by the lack of problems with this build
Click to expand...
Click to collapse
mmmm That CM7 build has great battery life but yours is beyond reality... are you sure you haven't connect the phone in those 2 days?
Mine says "4D 10h 1m 50s on battery" and has more than 50% left but it has 3 green spikes (in battery use, I connected 3 times but didnt charge to 100%)

Crin said:
How on EARTH are you getting that long out of your battery?
Are you using the phone at all?
I've used loads of different builds and never come even close to half that battery life, in fact no more than about 20hours MAX with light usage.
I am using Juice Defender to disable my WiFi and Data when the phone is not in use too.
Any tips?
Click to expand...
Click to collapse
Well I was going to say exactly EXACTLY the same thing! Except that i didn't like Juice Defender
Is battery THAT GOOD?!?

Battery
well yes, it's certainly feasible...
it's just that MY hd2 specifically gets random spikes in energy usage.... I'm not sure why, been trying to resolve it for a while.
I don't really get those spikes in WM, only when I go someplace that doesn't have signal... it will spike up initially and then settle down (dutty's rom)
However, with these android roms.... i get random spikes of increased current around 100-200ma while the phone is in sleep. Bluetooth off, sync off, wifi off etc.
also, when the phone is in use... it is not uncommon to have current of 400+ consumption... hitting 500+ when web browsing...
I never got this high in windows mobile...generally around 400 when streaming youtube in wm. I'm wondering if it is an android thing...
edit:
in a perfect world, our battery consumption should stay around 4ma constantly... Which we know that isn't always the case because we have data syncing and signal strength changing...but to give you an idea....
if we have a 1230mah battery... dividing that by the current draw (4ma) gives us a standby time of ~307.5h....
that's ~12.8 days
however, with my current usage... say, i'm getting about 14 hours out of my battery... that's like if i constantly had a current draw of ~68ma...
Taking a look of my usage charts.... if we say the phone is only in use for 6 hours, and the rest is in standby for 10h at 4ma...
the 6 hours would have a power consumption of ~300ma the whole time....
which i think is kinda excessive....
meh. i don't know.
perhaps i'll upload my usage charts later... lately on this new rom, i've been getting only 8 hours of battery :/
but it could be because i've been playing around with it too much

I am on a TMO US HD2 first generation and I am doing good if I can get 6 hrs of battery with the stock battery and normal usage. No wifi, 3/4g, no GPS, and auto screen dim. If I am using the net or something like angry birds I am down to 2-3 hrs max. I have tried underclocking and still not getting a full 8 hrs of life. Would love to find a solid rom that lasts 12 hrs or more. Ordered an extended battery so maybe that will help a bit.

tageeboy said:
I am on a TMO US HD2 first generation and I am doing good if I can get 6 hrs of battery with the stock battery and normal usage. No wifi, 3/4g, no GPS, and auto screen dim. If I am using the net or something like angry birds I am down to 2-3 hrs max. I have tried underclocking and still not getting a full 8 hrs of life. Would love to find a solid rom that lasts 12 hrs or more. Ordered an extended battery so maybe that will help a bit.
Click to expand...
Click to collapse
I have the same TMO US 1st Gen. I'm using
TyphooN CyanogenMod 7
http://forum.xda-developers.com/showthread.php?t=933951 just uncheck bluethoot when you don't use it.
I get from 1 to 2 days with moderate use.

Define what's good and what bad with the standard battery? I have been getting on average about 10-15 hours and that's with doing alot of texting, web surfing, mp3 player and xda lol, and crunchyroll (streaming shows) usually over 3g but sometimes over 4g.
Sent from my PC36100 using XDA Premium App

robrob777 said:
I have the same TMO US 1st Gen. I'm using
TyphooN CyanogenMod 7
http://forum.xda-developers.com/showthread.php?t=933951 just uncheck bluethoot when you don't use it.
I get from 1 to 2 days with moderate use.
Click to expand...
Click to collapse
Thanks for the tip. I have a second HD2 that I test builds on and I was actually in the process of installing the ROM you mentioned last night I am excited that this may be the rom to drop on my daily driver I have noticed that non GB roms (2.2) seem to have much stronger WIFI signal strength so I am hopeful this GB version will have solid WIFI signal too. Love using GB but hate the wifi issues I keep having. Thanks agian for the tip.

Well, this thread didn't go anywhere.
I'm finally trying to get up the courage to switch to a NAND rom.
I get awful battery life out of my SD build I've been playing with and that is with a 1500mAh replacement battery.
I'd hate to switch only to find myself in the same position?
Looking at TyphooN CyanogenMod 7 Nightly v3.6.0 . . .

Revhead said:
Well, this thread didn't go anywhere.
I'm finally trying to get up the courage to switch to a NAND rom.
I get awful battery life out of my SD build I've been playing with and that is with a 1500mAh replacement battery.
I'd hate to switch only to find myself in the same position?
Looking at TyphooN CyanogenMod 7 Nightly v3.6.0 . . .
Click to expand...
Click to collapse
battery drain on SD builds may vary from SD card used.
I can confirm that from my experience, i was not able to use the phone on the second day (total up time 1d + 12h TOP) when i was on SD builds
BUT.. while on NAND (no A2SD no Data2SD)
I can confirm that i can now use the phone for 2d + some hours, depending on use.
All battery info apps told me that battery life is Good (not excellent, not very good).

Made the switch. Battery life as good if not better than with WM and SD build. I feel the biggest improvement came when I installed setCPU.
Sent from my HTC HD2 using XDA App

Ughh battery drain definitely too fast.

I feel like I make a thread for each phone I go through. First Blackberries, then Droid X, now Galaxy Nexus.
I am getting pretty horrible battery drain that is definitely worse than others' Nexuses. I have gone to the extended battery now for a few days, yet in the morning, when I unplug from charger (says 98% but charged?), with brightness only a quarter of the way up from lowest, I can literally watch the percentage (battery number mod in corner) drop one-by-one each minute or a few...So if I am actually using the phone, you can imagine it drops pretty fast. Yesterday, with very very moderate use the phone was still dead within 5-6 hours. It was at the mid-80s within an hour or more. Again, with moderate use.
It is stomach-dropping watching the percentage number just go down and down. Yet my friend's Gnex using the extended battery his first day did not hit 85% yesterday until 5+ hours later. The battery stats page on mine shows nothing with high numbers except Screen and Android OS, so I assume no apps are draining it. I am rooted with unlocked BL, on bigxie's deodexed ROM with softkeys mod, battery percentage mod, and power menu mod. I have 100-something apps and many widgets but no battery draining/updating ones. Others with the same ROM report fine battery.
I believe after using the ext. battery for a couple days, it should be "conditioned" if needed at all, yet I see no improvement.
I'm getting very angry watching this drop.. For example, 40 minutes off the charger with almost NO use except for turning the screen on here and there, I am at 94% battery with Screen at 46%, Android OS at 34%, Phone Idle 11%, Cell Standby 9%, and Android System 2%.
And then 1 hr 20 min in, at 88% battery with 55% Screen, 27% Android OS, 6% Phone Idle, 6% Cell Standby.
This doesn't sound normal right? Keep in mind, those numbers are with almost no phone use..very minimal settings menus visited and one update from Market.
Jesus, literally almost every time or two I turn the screen on just to check these numbers, I see the damn battery percentage drop a number. Not even using the phone how/as much as I normally would be. This is infuriating. Luckily, it doesn't seem to drain much with the screen off.

Quit checking and wait til the bug is fixed and blood pressure stabilizes?
Crazy world, ay?

Update to 4.0.2 or 4.0.3 with an improved kernel = success.
Use the phone for 1-2 weeks to stablize battery life - mine is better now than it was when I began using it. But the kernel/rom makes a big difference.

Thanks. Any suggestions on with combo to use now? 4.0.3 preferrably I guess.
Then why does my friend on totally stock 4.0.2, non-rooted have that great battery life from the first day using the extended battery?? I'm pretty much basing mine off of his and other's who are getting ridiculously long life. I never understood how it varies SO much. We should all have the same relative to usage.

just4747 said:
Thanks. Any suggestions on with combo to use now? 4.0.3 preferrably I guess.
Then why does my friend on totally stock 4.0.2, non-rooted have that great battery life from the first day using the extended battery?? I'm pretty much basing mine off of his and other's who are getting ridiculously long life. I never understood how it varies SO much. We should all have the same relative to usage.
Click to expand...
Click to collapse
No. Because no two phones are set up the same. Too many variables to say relatively same usage. For instance, when i go to bed i get 2-3 hours standby per percentage point. Not everybody is going to get that.
Crazy world, ay?

@rbiter said:
No. Because no two phones are set up the same. Too many variables to say relatively same usage. For instance, when i go to bed i get 2-3 hours standby per percentage point. Not everybody is going to get that.
Crazy world, ay?
Click to expand...
Click to collapse
Maybe, but the fact that I have no other visible outstanding draining factors, and I get no 4G at home and therefore have it set to CDMA only...I should not be seeing 1% drops almost every time I turn the screen on for more than 30 seconds. Especially with an extended battery.
God forbid I want to use GPS or 4G.

More battery life threads please.

case0 said:
More battery life threads please.
Click to expand...
Click to collapse
Wow, really? At first glance in all sub-forums I saw about two, if that. I have a legitimate concern, especially when my friend is getting about 4 times better life. Thanks for your help though in the device forum where this 'doesn't belong'.
..And over the course of only a few minutes of the screen being on maybe twice and sending one email, I saw it go from low 82-83 down to 77. ****ing awesome.

just4747 said:
Wow, really? At first glance in all sub-forums I saw about two, if that. I have a legitimate concern, especially when my friend is getting about 4 times better life. Thanks for your help though in the device forum where this 'doesn't belong'.
..And over the course of only a few minutes of the screen being on maybe twice and sending one email, I saw it go from low 82-83 down to 77. ****ing awesome.
Click to expand...
Click to collapse
You probably have a misbehaving app. Download better battery stats from the android apps and games section here at xda and let it run for a day or so and see what processes are being used the most and what your wakelocks are, etc.
Also, find a 4.0.3 rom with a kernel that can be undervolted and try that out.
Sent from my Galaxy Nexus using xda premium

joshnichols189 said:
You probably have a misbehaving app. Download better battery stats from the android apps and games section here at xda and let it run for a day or so and see what processes are being used the most and what your wakelocks are, etc.
Also, find a 4.0.3 rom with a kernel that can be undervolted and try that out.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Thank you, downloading now and will check it out.

I'll admit I'm using the GSM version so my experiences may not apply but for the first few days my battery life was utter crap.
Its been MUCH improved over the last few days, I dont have the wakelock issue and with the screen off the battery drain is literally only about 3% per hour, and thats with background data on.
YES, the screen DOES use a lot of battery, it isnt really avoidable and is somewhat expected with a 720p 4.6 inch super AMOLED screen.
The one thing I can recommend doing is finding a modded kernel and undervolting that CPU - It seems they've been really rather generous providing power to the thing, I've been able to take off at least 100-150mv across the board.

Antzor said:
I'll admit I'm using the GSM version so my experiences may not apply but for the first few days my battery life was utter crap.
Its been MUCH improved over the last few days, I dont have the wakelock issue and with the screen off the battery drain is literally only about 3% per hour, and thats with background data on.
YES, the screen DOES use a lot of battery, it isnt really avoidable and is somewhat expected with a 720p 4.6 inch super AMOLED screen.
The one thing I can recommend doing is finding a modded kernel and undervolting that CPU - It seems they've been really rather generous providing power to the thing, I've been able to take off at least 100-150mv across the board.
Click to expand...
Click to collapse
This - My battery on the stock battery on GSM sucked first few days, and I was really concerned I made a poor purchase. But with the screen on probably 5 or 6 hours of my work day it lives through the day and just enough to get home after that. I can charge it at work too, which I usually do. On my day off it survived 18 hours and still had ~20% battery life left on 4.0.3 AOKP/Francisco.Franco Kernel

From my experience, the battery life isn't bad. I did install the "extended" battery as soon as I bought the phone but is isn't much bigger than the stock battery. I am on stock rooted 4.02. With LTE off I use about 2% per hour in standby. With LTE on it is almost double that (3-4%/hour). I have several widgets running and gps enabled. (wifi when available) I can easily get a 16-18 hour day and have 50% remaining when I go to bed unles I sit around gaming for a couple hours.
I may try a new ROM tonight but I expect it will probably make things worse.

Im running a bone stock setup and im getting 12 -14 hours a day... normally I read posts like the one skiddingus posted and wonder why I never can achieve those readings so i feel your confusion . I do have 4g on and gps off screen is about 1/4 of the way up brightness wise

New GN owner feedback.

Hello all,
First off thanks to everyone in the community for all of the great articles and information. I struggled with which device to get but settled on the GN. When it arrived I kind of paniced because it wouldn't update from 4.0.1. Thanks to all of you I ended up finding out that I received a YAKJUDV version. With a little research I found out how to change to YAKJU and now all is well.
Not only is "all well" but "all is great"! I am running straight stock 4.0.4, no root, no custom kernel, nada. I do not have any issues with wake from sleep as some have reported, and my battery life is fantastic. As of right now I am on 1 Day 16 Hours and I still have 36% battery remaining. I know that battery life is very subjective but I have browsed some websites, downloaded 10-15 apps. Played a little angry birds. Connected to my job's Cisco VPN and did some RDP work. I have 3 Gmail accounts set to push with calendar & contact sync. I have had Wifi and Bluetooth enabled the whole time. I also have my google voice and google plus account active. I keep the screen on auto brightness. Lastly, I have about an hour or so of talk time during this period. Ohh, I forgot I also have had the Jawbone Companion app installed and connected to my Era, I read a few comments on some sites where users reported the app caused noticeable battery drain, this was not my experience.
In closing, thanks again for all of the info!

Greate battery life
nice....

that sounds like incredible battery life. what was the screen on time? i take it on WiFi the entire time?
either way, its refreshing to hear/see a thread praising this phone.. i am in the same boat as you, i am completely happy with my nexus...absolutely love it. however i had to root/ROM to get to this point but still very happy (i was going to root/ROM anyway)

For me crap battery life at 4.0.1 (and probably battery wasn't calibrated). Once updated to yakju 4.0.4 battery life was much much better. Other than the "screen at low brightness look crap issue" and not too loud speaker (Nokia phones which I came from was DAMN loud), overall very happy with this phone. The ROMs and kernels for most of the cases JUST WORK. And the fact people ask me what phone am I holding is an epic thing when you see people around you having iPhones and S2. May send mine in for a replacement as the top part of the screen has this weird greenish colour. Noticeable when keyboard is in landscape.

the screen on time is 4hrs 2min.

sfagundes said:
the screen on time is 4hrs 2min.
Click to expand...
Click to collapse
Want to swap phones?

sfagundes said:
the screen on time is 4hrs 2min.
Click to expand...
Click to collapse
holy ****...how did you get a 1 day and 16 hours with a 4 hours 2 min.......
im getting the 4 hours screen time but with a day (24 hours)........

lol i wish i could tell you.......
I am not running any widgets, most of my browsing was done over wifi.
I ordered a GNex about 2 weeks ago and used it for about 36 hours and returned it. That one had abysmal battery life. In hind sight, I wish I would have looked closer at the firmware/version type with that one so I would have some sort of reference.
I am kind of pissed that I ordered the extended battery thinking my battery life was going to be ****. I honestly dont think i need it.

sfagundes said:
lol i wish i could tell you.......
I am not running any widgets, most of my browsing was done over wifi.
I ordered a GNex about 2 weeks ago and used it for about 36 hours and returned it. That one had abysmal battery life. In hind sight, I wish I would have looked closer at the firmware/version type with that one so I would have some sort of reference.
I am kind of pissed that I ordered the extended battery thinking my battery life was going to be ****. I honestly dont think i need it.
Click to expand...
Click to collapse
When you use the charger does a green light come up to tell you that the battery is charging?
My Nexus One shows a green light, not my Galaxy Nexus.

gunner1937 said:
When you use the charger does a green light come up to tell you that the battery is charging?
My Nexus One shows a green light, not my Galaxy Nexus.
Click to expand...
Click to collapse
LOL, i don't know! I am still trying to drain the battery for the first time, I dont want to plug it in yet!
I'll check next time i charge it.

did you put it in the charger for short periods of time? if it doesn't get a full charge at once it doesn't reset the timer. you can tell when you are looking at the battery option and the map goes down back up then down again lol... I'm honestly thinking that's the case
Sent from my Galaxy Nexus using xda premium

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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.