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[Q] Looking for the most battery efficient rom/kernel combo

I am going to be traveling in Asia for a month. I don't need any of bells and whistles and I want a phone that is very stable, very energy efficient and GPS camera definitely has to works. Which rom/kernel will you recommend? any setting tricks? Thanks
I have tried Rod's MiuiMod, CM6.1.1, CM7 and many others.
I found that CM7 + WM 1/6/2011 kernel gives me the best battery life, but CM7 is still not in stable stage yet.

I have had the most battery life with Enomthers Rom, currently he is away on personal responsibilities but his latest stable rom is very battery efficient!

I have no recommendation as to kernel/rom combinations, but for long battery life I use this:
http://www.amazon.com/Seidio-Innocell-Battery-Google-Replacement/dp/B003FSTBP4/ref=sr_1_2?ie=UTF8&qid=1296521084&sr=8-2
I got really tired of barely making through a day without having to recharge so I bought one of these. I got mine for $61 on Amazon and free shipping. It's 3200mah which is over twice the stock battery. My first full charge/discharge cycle I got over 34 hours of moderate usage and it's supposed to get better after a few charge cycles. It does make your phone about 30-40% thicker (comes with it's own custom battery cover), but for the battery life you get it's well worth the added thickness. I also find it's a little easier to hold on to.
Anyway, maybe not the solution you're looking for but for me it was well worth the money.
Just my 2 cents.

phburks said:
I have no recommendation as to kernel/rom combinations, but for long battery life I use this:
http://www.amazon.com/Seidio-Innocell-Battery-Google-Replacement/dp/B003FSTBP4/ref=sr_1_2?ie=UTF8&qid=1296521084&sr=8-2
Just my 2 cents.
Click to expand...
Click to collapse
That's one big battery Thanks tho, but I want my N1 to stay small.

I second the recommendation for Enomther's. Rock-stable.

I have no combo recommendation cuz I haven't found a really good one yet. Right now I'm using cm6.1 and wild monks kernel. It's been decent for me. But I suggest using set cpu, put on power save mode when you don't use the phone. It'll be there forever. Turn off data connection and gps as well. Also using less like half the animation helps speed up the phone and saves battery too.
Ps I'm combining inexus theme too and their icons plus the animations are amazing! My phone looks colorful as hell!
Sent from my Nexus One using XDA App

spx2000 said:
That's one big battery Thanks tho, but I want my N1 to stay small.
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Click to collapse
Lol yea it does add some bulk but it sure is reassuring to know I don't have worry about my battery dying before the day is over. I use my phone a lot and don't have time to really recharge it much and I don't like the idea of carrying extra batteries so this works very well for me.

I haven't done too many Roms, but miui has given me the most battery life out of stock, cm and miui.
I've been travelling and I managed to get 4-5 days with minimal calls and very light usage. If you use it normally with wifi and regular calls, 2-3 days is usually the limit.
Both these numbers are with auto airplane mode during my sleep hours.
Sent from my GT-P1000 using XDA App

What i have heard is that CM7 is 20-30% more efficient with battery life than CM6

Not true
Sent from my Nexus One using XDA App

That really is a personal opinion.
xzr3b0rnzx said:
Not true
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
In my personal opinion, CM7 Nightlies are really stable. After a real heavy usage i.e. playing games, surfing, calls, messages, i get about 15 hours a day.
My phone is fully charged when I leave at 8 and by 8 pm battery will be somewhere between 40 and 45 % left.
Bugs are there with CM7 Nightlies but so far I haven't had any problems with it.

Recently I've been through about 3 roms, and of the three (rod's, micromod's own GB aosp, and leo's GB aosp, leo's gives me the best battery life.
It might be because he incorporated the battery driver, though.

questions about roms

im looking for a new rom i want something thats good on the battery like paragon. but when i run paragon my speaker goes out (i have tried it twice now) i tried firefly but the battery was awful on it but speaker never went out. so im looking for something new with a good battery and isnt to laggy and simple.

Give Apex 5.1 (formerly Twingerbread)a try. I get great battery life, has a great modem, and its really quick and responsive. Then I swapped the Speedmod kernel for Suckerpunch-Voodoo #11. I ran about a 1680 quadrant, 14.25 linpack ten minutes after install.
Good luck, and I hope this helps.
Sent from my SAMSUNG-SGH-I897 using XDA App

Try Serendipity 6.3! It's got fantastic, minimalistic Gingerbread theming, and it's really fast. Plus, I get at least 2 days of battery life on it with moderate use.
Here's the link: http://forum.xda-developers.com/showthread.php?t=900568

I'm gonna second the suggestion for Serendipity 6.3, although I'll also mention that just because someone gets good battery life on a ROM doesn't mean you will. Everyone uses their phone differently. What may be moderate use to one person may be heavy usage to another and light usage to another. So I state above all else, your mileage WILL vary!

i understand about the milage i started using continuum im liking it so far. ill give the others a try after a week or so maybe.

Just flashed to serendipity 6.3 this morning, i would recommend it for sure. I browse the web for 12 or so hours at a time and my battery life has been greatly extended compared to the leaked stock froyo. Everything loads much faster as well

Rom with the best battery life

I don't know If this thread has already been created if so please direct me to that thread.
So I used to think CM6 had the best battery life so I flashed 6.1.0 but not much battery life change so im starting to think that maybe it was actually cm 6.0.0 that had best battery life but im unable to find it so I can test it. So im here asking you all what Rom has brought you the best battery life to your cdma hero no matter if its 2.2 or 2.3
CM + AOSP = DABIZZNIZ

I would like to know what's your measure of "best" battery life?

try using aosp - jaybob's rom, best rom with battery life, used it pretty heavily and got 15 hours

andythegreenguy said:
I would like to know what's your measure of "best" battery life?
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Click to collapse
My measure of best battery life is not losing 10% of my batery life doing nothing. I remember when my battery would be be at 40% I go to sleep wake up and its about 30%, now its dead by the time I wake up
CM + AOSP = DABIZZNIZ

Majin101 said:
try using aosp - jaybob's rom, best rom with battery life, used it pretty heavily and got 15 hours
Click to expand...
Click to collapse
Do you mind posting the link for that, thanks in advance
CM + AOSP = DABIZZNIZ

http://forum.xda-developers.com/showthread.php?t=1090234
don't need to flash the kernel since it's already in the rom. Just do a full wipe and bam ! I'm actually trying the latest one (june-08) but the june 4 version gave me that 15 hour

personally i have found that the rom you choose itself doesnt really matter, its more about your personal usage, i.e what apps u have running, cpu settings, etc. i usually get around 15-20 hours battery life with pretty heavy mp3 use, lots of texting, and about two hours or so actually on the phone. but i make sure i leave data/wifi/gps etc. off unless i need it. also, its a good idea to check and stop apps that automatically load with the phone that you dont need. imho the only roms that seem to drain the battery quicker are the sense based ones, at least from my own experience.
*using aosp - jaybob's rom 06/08

Majin101 said:
http://forum.xda-developers.com/showthread.php?t=1090234
don't need to flash the kernel since it's already in the rom. Just do a full wipe and bam ! I'm actually trying the latest one (june-08) but the june 4 version gave me that 15 hour
Click to expand...
Click to collapse
Much thanks man im going to check it out and flash tonight

xfrobex said:
personally i have found that the rom you choose itself doesnt really matter, its more about your personal usage, i.e what apps u have running, cpu settings, etc. i usually get around 15-20 hours battery life with pretty heavy mp3 use, lots of texting, and about two hours or so actually on the phone. but i make sure i leave data/wifi/gps etc. off unless i need it. also, its a good idea to check and stop apps that automatically load with the phone that you dont need. imho the only roms that seem to drain the battery quicker are the sense based ones, at least from my own experience.
*using aosp - jaybob's rom 06/08
Click to expand...
Click to collapse
>> i basically do the same you are talking about but my battery only last about 6hrs for the day, i leave all those stuff off wifi gps etc. but only get 6hrs which suck

aosp-cmod-heroc-20110523
been using aosp-cmod-heroc-20110523,,,works pretty good for me. been getting about 10 hrs. with normal use. you can get it from rom managers downloads. just a thought

drlzanej said:
been using aosp-cmod-heroc-20110523,,,works pretty good for me. been getting about 10 hrs. with normal use. you can get it from rom managers downloads. just a thought
Click to expand...
Click to collapse
Is that the 2.3.4 aosp rom that recently release? Because im trying it, its really smooth I like it
Hungry Hero Eating Gingerbread Cookies

jamega2f said:
>> i basically do the same you are talking about but my battery only last about 6hrs for the day, i leave all those stuff off wifi gps etc. but only get 6hrs which suck
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Click to collapse
I was thinking about starting a new thread about this, but you are explaining EXACTLY what I am going through. I wake up today (after leaving my phone charging at night) and turn on my phone, and first thing I see is an 80% battery (this is a normal occurance). After literally doing NOTHING on it all day (except for a 30 minute call) it turns off by itself at 20%.... after 8 hours. So while I got 2 hours better than you, keep in mind that I did virtually nothing. What is worse about it is i'm supposedly using the "best rom" for battery life (AOSP 2.2. + battery tweak).
I've wiped battery stats (after reading the correct way to do it) and checked the health of my batter (reads as "good") and i'm still clueless. I'm wondering if I should even waste my money on a battery and hope that's it? I've only had the phone exactly a year and about a week so I'de be disappointed to know the battery lasts this short. I remember being on another froyo ROM (with the battery tweak) using it more than I am now going to bed anywhere between 30 and 50% which is about where it's at at lunch time now! I can't believe that i'm actually ok with the performance of my hero, it's just the battery that's killing me now !

And I plan on staying away from the GB ROMS until they get the GPS issue resolved. Let's just say that I was in Colorado a couple of weeks ago and my phone failed when I need it to work.... flashed froyo almost immediately when I got back (that's another topic)

tannerw_2010 said:
And I plan on staying away from the GB ROMS until they get the GPS issue resolved. Let's just say that I was in Colorado a couple of weeks ago and my phone failed when I need it to work.... flashed froyo almost immediately when I got back (that's another topic)
Click to expand...
Click to collapse
What froyo Rom is your Rom of preference ?
Hungry Hero Eating Gingerbread Cookies

tannerw_2010 said:
I was thinking about starting a new thread about this, but you are explaining EXACTLY what I am going through. I wake up today (after leaving my phone charging at night) and turn on my phone, and first thing I see is an 80% battery (this is a normal occurance). After literally doing NOTHING on it all day (except for a 30 minute call) it turns off by itself at 20%.... after 8 hours. So while I got 2 hours better than you, keep in mind that I did virtually nothing. What is worse about it is i'm supposedly using the "best rom" for battery life (AOSP 2.2. + battery tweak).
I've wiped battery stats (after reading the correct way to do it) and checked the health of my batter (reads as "good") and i'm still clueless. I'm wondering if I should even waste my money on a battery and hope that's it? I've only had the phone exactly a year and about a week so I'de be disappointed to know the battery lasts this short. I remember being on another froyo ROM (with the battery tweak) using it more than I am now going to bed anywhere between 30 and 50% which is about where it's at at lunch time now! I can't believe that i'm actually ok with the performance of my hero, it's just the battery that's killing me now !
Click to expand...
Click to collapse
I really had my best battery life on CM 6.0.0 froyo rom, So im seeing a trend that froyo roms has the best battery life
Hungry Hero Eating Gingerbread Cookies

i believe you are correct, if you got it from the download section of rom manager, its the same one, ben using for a while now, no FCs no issues. smooth and pretty fast too

[Q] CM 7.1 Stable vs Stock JVx Battery life

After using Samsung stock ROMs for over a year I finally switched to CM7.1(Stable) last week. But the battery life I'm getting now is not as good what I used to get with Samsung stock ROMs. With JVT I easily got 24hrs, but now I cant go beyond 15hrs with same usage patterns (3G during day and WiFi at night, few short calls and around 50 SMSs, with a bit of web browsing and some online audio streaming). Did anyone else notice a similar battery life drop going from a recent stock ROM to CM7.1 ?

I ran the CM7 nightlies until recently and came back to JVT because of battery life and the hello hello bug. I use my phone as a music player for most of the day and find that stock ROMs hardly deplete the battery at all, with CM7 I was getting the same sort of life as you.
Sent from my GT-I9000 using xda premium

For me, CM 7.1 Stable drains battery a lot. I've changed to JVP modem and it seems to be a bit longer, maybe I'll try with Fugu kernel.

Looks like I'll be going back to JVT. Idling battery drain is way too much. For example I charged it around 8 last night and by 12 noon today, battery is down to 45% mostly just idling and few texts. This is as bad as original eclair release came with the phone.

I personaly dont find there to be a huge difference but i am on Bell which is HSPA only (3G all the time)
i find i always have to recharge by 4 pm (8 am wake up) but i am a heavy user. I am waiting for my extended battery so i can make it through a day.

redzone321 said:
I personaly dont find there to be a huge difference but i am on Bell which is HSPA only (3G all the time)
i find i always have to recharge by 4 pm (8 am wake up) but i am a heavy user. I am waiting for my extended battery so i can make it through a day.
Click to expand...
Click to collapse
What was the last stock ROM you used ? I used to get similar battery life with earlier ROMs, sometimes I had to charge it twice in a day depending on usage. But with recent ROMs (2.3.3 and up), I ever hardly charged it twice, despite very heavy use (more than an hour of calling , GSM/VOIP, about an hour of internet audio streaming etc..). IMO stock ROMs are really good at idle power consumption, I have managed to get 2 days with light use, a full day with moderate use and more than 10hrs with heavy use.
EDIT : CM7 is smoother and quicker; I also like the customizability. I’ll again give it a try when ICS comes out , but till then I'm back to Samsung Stock, because poor battery life simply kills the experience for me. Perhaps I can squeeze couple of hours more with some tweaks, but I doubt it'll be as good as JVT.

I myself have come back to 2.3.5 xxjvt cos coming from cm7.1 and darky 10.2 final..i should say stock rom can have a standby time of more than 24hours believe that..otherwise ics might have a lot more to over than gingerbread
Sent from my GT-I9000 using XDA App

I hope when ics is released by cyogenmod battery life gets better this is why ive not updated to 7.1

Hello U all.
Can somebody give me a link to the CM7.1 stable for i9000?
Thank you.

[Q] Are the battery drain issues with ICS fixed yet?

Hey there,
In case you can't tell, I'm a newbie.
Anyways, I'm currently using a 6-yo HTC Dopod Pro and I've finally decided to get a new phone.
I really want to get a Galaxy Note but I hear that the Note has a relatively short battery life.
I also heard that ICS for the Note causes the battery to drain even quicker.
Have these issues been fixed yet?
Cheers.

What you have heard is misinformation. A bad installation of ICS, rogue apps and weird settings are the cause of people having battery issues with ICS.
The Note has one of the best battery lifes among all android phones.

Note has excellent battery life. I have the LQ2 ICS, and I have no weird battery drain, wakelocks or any other probs
Sent from my GT-N7000 using XDA

Just disable some draining apps on ICS.
Don't forget the huge power of note battery( 2500mAh)
I'm also on LQ2 ICS =]
Sent from my GT-N7000 using xda premium

Belfia said:
What you have heard is misinformation. A bad installation of ICS, rogue apps and weird settings are the cause of people having battery issues with ICS.
The Note has one of the best battery lifes among all android phones.
Click to expand...
Click to collapse
Really?
Cuz I hear lots of things about bad battery life on ICS, even on xda.
Some examples:
http://forum.xda-developers.com/showthread.php?t=1676335
http://forum.xda-developers.com/showthread.php?t=1649041
http://forum.xda-developers.com/showthread.php?t=1685383
http://forum.xda-developers.com/showthread.php?t=1676018
http://forum.xda-developers.com/showthread.php?t=1697792
http://code.google.com/p/android/issues/detail?id=32277
http://androidforums.com/samsung-galaxy-note/554408-battery-drainage-after-updating-ics.html
I heard the battery life was pretty good whilst on GB but as soon as people upgrade to ICS, the life was substantially lower.

The battery drain "problem" of the GNote is like troubles with your Windows computer (IMHO): The more you fumble, worse it gets. Use it as it was designed and you'll be a happy person.
I have a GNote for a few months, it was Full Stock under GB and now is Full Stock under ICS. I use it moderately (2nd phone) and could easily manage 36 hours.
I pick it of the charger ~5h30, 6h00 in the morning and find it at 60~70% when I get home about 12 hours later (30~45 minutes talk time, not much else). I than read my favorite blogs and news papers that runs it down to 30-40% (reading takes about 1,5 hours).
When I go to bed it's never lower than 27-30%
The only problem I have is that it sometimes doesn't go in Deep Sleep and that I solve through a systematical reboot in the morning (of the charger).
As always (even people) the GNote is as good as you treat it

Hey Little Vince
Welcome to XDA!
I have had Note for over 6 months (bought from UK to Brissy) Been on ICS only last eight days or so - and I can report that the battery life is slightly better than GB. Speed is better too - not as much lag.
I have used Blackberry/Axim/Palm before and always got into the habit of charging overnight so anything longer than 24 hours doesnt really matter.
Please don't let others put you off a wonderful phone. It is so versatile.
PS - it always takes a few battery cycles (e.g. three or four days) before you get accurate info. I have had quick battery drain for a few hours after updating Kernel but it always settles down.

Tonio78370 said:
...
The only problem I have is that it sometimes doesn't go in Deep Sleep and that I solve through a systematical reboot in the morning (of the charger).
As always (even people) the GNote is as good as you treat it
Click to expand...
Click to collapse
What is that systematical reboot you're talking about? Can you explain a little bit?

There are a few tricks suggested in this thread http://forum.xda-developers.com/showthread.php?t=1649041
I found my battery life was quite poor at first but it has improved after a few charging cycles. Also, I had a lot of syncing processes running (some duplicating others). Killing some of those also helped.
Sent from my GT-N7000 using Tapatalk 2

Never had an issue with batt drain, either on gb or ics... I think the latter is a bit better. I leave gps, wifi and 3g on all the time, and am a relatively heavy user... really haven't tweaked anything for batt life, other than removing some bloat.

OP, it would probably help if you told us what you would consider to be decent battery life. That way, people will be able to tell you if it is possible.
As for me, I'm on CM9 and have never tried stock ICS. I can confirm that battery life was better on GB, but CM9 still gets me through the day on fairly frequent use.
Usually fully charged when I get up in the morning (6am), and down to about 20-30% when I charge it at night before bed. This will normally include roughly 3-4 hours screen time from watching movies on the train and internet browsing throughout the day.

Same here no battery problem. I'm using DXLP9 firmware.
Sent from my GT-N7000 using Tapatalk 2

Nah battery drain is a real issue with ICS. It's too documented to be denied. Doesn't matter what I think is good battery life, but relatively with GB, it was 20-30% for about 12 hours of use (wife doesn't use it much) and after ICS, it's -110%. Hmm.. I meant for the 12 hours, it needs a charge and then some. And that's crazy since my wife really doesn't use it much.
Anyhow, this completely fixed it for me. Looks like there's a few bugs that you can come across if you have battery drain with ICS. Check the full thread for more details...
http://forum.xda-developers.com/showpost.php?p=25980444&postcount=2
UPDATE: ok no. Still no real solution for fixing this after trying many over lots of days. AFAIK, kernal problem that Samsung needs to fix. And please do fix!!

As I see it from the times from BBS the problem of the drain is at standby mode where the battery for the start of locking and outing on sleep it eats slot of battery till it reaches the 1% every 1 hour and 45 minutes like it was on lc1 stock, even I had on GB 2 hours 45min for 1%, it starts with 1% for 30 minutes then 45 min 1 hour and so on till it reaches the max of it.
The use with screen on is the same 25% for 1 hour and 20-30 min screen on time with low brightness, as it was with GB. On GB I had 5h30m screen on with 10-14% battery left.
So the issue for me at least, is the standby aka sleep mode.
Sent from my GT-N7000 using Tapatalk 2

to the OP, yes battery drain is a documented issue on ICS, with the wake locks and rogue apps (for the unlucky few.. myself included)
i was on rooted stock GB and i used to have a good 72hrs of standby time for the note especially on the weekend when it is rarely used and maybe a good 48hrs on a weekday with average usage (about an hour's call, moderate surfing, facebook etc)
during days when i travel a lot i can be surfing and listening to music and doing calls for the better part of the day and the note still lasts a day with about 20% juice left by 7-8pm
however after I upgraded to ICS LP9, my battery couldn't even last me for a day without getting a few hours of charge from my laptop, i was on stock ICS for 2 weeks and did a lot of fine tuning just to optimize the battery life and ensure the phone goes into deep sleep and still not sufficient. the thing that blew it for me was when i noticed that my note started running at 1000mhz only and not any lower (even when charging - take note i was on unrooted ICS).. so decided that ICS with all its hype wasn't polished enough yet and was not worth it for me and went back to my stock rooted GB LC2
now i'm a happy camper.. note sleeps like a baby when it is supposed to and runs smoothly when called upon
so to answer your question (sorry about the long story) yes you can enjoy great battery life on note be it GB or ICS but you won't know until you get one for yourself.. and like what the other posters said the note is such a beast of a phone that you will not look into another phone again once you get one be it on GB or ICS

I absolutely would not recommend the G Note until there is another ICS update issued - unless you want to stick to GB (in which case I would definitely recommend).
Apart from the deep sleep problem, which for me anyway, cannot be resolved, I've had stability issues, overheating and it even pulls restarts without warning.
The only battery fixes that have kind of worked for me (and they still don't get me anywhere near the battery life I was getting with GB) involved me following a 5 step programme every time I charge my phone, which is frankly unacceptable.
FYI - I've had the note since December and it's running stock everything.
The Note is an amazing phone, but ICS has rendered mine not fit for purpose.

The sad thing is samsungs and android capabilities in finding the culprits. Fancy native battery charts which dont help much, if any in analyzing.
Only best case is to check deep sleep(cpuspy) , and if deep sleep is low check partial wakelocks in betterbatterystats.
Then you can find a lot of the culprits
Good thing the XDA community picks up where Samsung/google drop the ball.
Sent from my GT-N7000 using Tapatalk 2

To the OP. My Note on gingerbread had wonderful battery life 16+ hrs. After the ICS LPY update my note dies after 5 hours. To all the naysayers saying there are no issues with battery life on ICS, give me a break. Just google how many note and galaxy SII users on ICS are having battery drain issues.

I get exactly the same battery life on ics that I did on gb, the battery drain people are having has nothing to do with ics. It will be apps causing the issues. Im running exactly the same apps as I was before and its exactly the same battery.

Alexanderbooth said:
I get exactly the same battery life on ics that I did on gb, the battery drain people are having has nothing to do with ics. It will be apps causing the issues. Im running exactly the same apps as I was before and its exactly the same battery.
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Click to collapse
mmm.... No.... The same apps, even after a factory reset and reinstalling apps I STILL had the drain. You say it's apps that aren't optimized? That could be true... but then again, I guess it must be a VERY VERY common app that's causing this because most everyone says they've experienced a decrease in battery life.