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[Q] Battery Life Froyo Vs. GB

Just wondering if anyone can help me understand how there can be such a drastic difference in battery life between Froyo and GB. I've been using BAMF Roms mostly since I rooted my T-Bolt and with above average use on 4G half the day, on Wifi the rest, and get 20>24 hrs battery life. I flashed All the GB Roms after each update, because the lockscreen keeps calling me back lol, but I'm lucky if I get 6 hrs usage with the same basic setup.
I charge my phone every morning when I wake up to 100% and rarely have to charge again until the the next morning with BAMF 1.7 unless I'm flashing mods or streaming a lot of audio and video. I went to sleep at 11:30pm last night with 19% battery and woke up with 14%, insane! With BAMF 2.1 the night before, I not only had to charge my phone 2X that day after very little usage, but went to bed the same time with 100% battery and woke up with 47%. That was with everything turned off, wifi, mobile net, and underclocked to 245mhz with the screen off.
I would just like to know how there can be such a big difference, especially with standby time. Thanks.

It is a known fact that GB is more resource hogging than Froyo. Plus the fact that the GB builds we see here are all based on an alpha leak.. which may not be the best representation of GB. It perhaps has to do with how GB handles memory and how much resource it sucks in to accomplish that.
Just my theory.

I guess what I really can't understand is the standby time. If the screen is off, shouldn't the phone be using less resources? 5% loss on Froyo at night compared to 53% loss with GB, seems like a huge difference to me.

Having some serious battery drain too since going to 2.1. Was thinking about trying a different kernel. Have you tried anything. Trying to find a link but think I saw some posts that Imoseyen's kernels were pretty good.
http://forum.xda-developers.com/showthread.php?t=1086518

fotd said:
Having some serious battery drain too since going to 2.1. Was thinking about trying a different kernel. Have you tried anything. Trying to find a link but think I saw some posts that Imoseyen's kernels were pretty good.
http://forum.xda-developers.com/showthread.php?t=1086518
Click to expand...
Click to collapse
AFAIK, all GB kernels are Imoseyen's or use his as the base.

johnkc1975 said:
I guess what I really can't understand is the standby time. If the screen is off, shouldn't the phone be using less resources? 5% loss on Froyo at night compared to 53% loss with GB, seems like a huge difference to me.
Click to expand...
Click to collapse
53% loss overnight in standby tells me you probably have a bad app somewhere.
Mine typically loses about 15-20% max overnight on GB Roms.. (and I've used GB theory, Liquid Roms and Gingeritis)...This itself is more than Froyo Rom which for me has been typically about 5% loss max on standby overnight.
Most importantly.. when I am working on the phone.. GB Roms tend to lose charge a lot faster than Froyo Roms.. which is where the real pain is.

johnkc1975 said:
I guess what I really can't understand is the standby time. If the screen is off, shouldn't the phone be using less resources? 5% loss on Froyo at night compared to 53% loss with GB, seems like a huge difference to me.
Click to expand...
Click to collapse
I've seen the same thing. After about 4 hours yesterday on my extended battery I dropped 2%!! With a GB ROM I lose 10% per hour-ish. I'm just sticking with FroYo until we get a better GB leak that is more stable. I was on GB/CM7 on my Inspire and the battery life was great so I know GB isn't as bad as it is on our device we just have an early build of GB. It will get better hopefully sooner rather than later.

I'm not sure if its GB or the roms but there are additional features in GB/GB roms that contribute to the battery loss. These battery tips are in chingy's gingeritis post. Go through these and hopefully these will increase your battery life. I didn't come up with these tips. Credits to Boskoel03
Battery Tips From Boskoel03
Disable "Tell HTC" service: Settings -> About Phone ->Tell HTC -> Disable
Disable Software Updates: Settings -> About Phone ->Software updates -> Uncheck Software Updates
change Wi-Fi Sleep policy: settings -> wireless & networks ->Wi-Fi Settings ->15 min
Disable Phone Finder: Settings -> Location
Disable Weather Sounds & Clock Widget Full Screen Animation
Increase Facebook/Twitter/Stocks/Anyone otther accounts sync interval to 4hours or more
Use Auto-Brightness
Disable Haptic Feedback
Use Wifi when available
Set screen timeout to 30 seconds
Standalone GPS should be OFF when not using navigation
Refrain from playing angry birds while on the pooper

fotd said:
Having some serious battery drain too since going to 2.1. Was thinking about trying a different kernel. Have you tried anything. Trying to find a link but think I saw some posts that Imoseyen's kernels were pretty good.
http://forum.xda-developers.com/showthread.php?t=1086518
Click to expand...
Click to collapse
Other than re-flashing after the Rom's are updated, no, I have not tried any different kernals because I assume the devs know a lot more than me, so I like to stick with the kernals that come with the Roms.

kriskmk said:
53% loss overnight in standby tells me you probably have a bad app somewhere.
Mine typically loses about 15-20% max overnight on GB Roms.. (and I've used GB theory, Liquid Roms and Gingeritis)...This itself is more than Froyo Rom which for me has been typically about 5% loss max on standby overnight.
Most importantly.. when I am working on the phone.. GB Roms tend to lose charge a lot faster than Froyo Roms.. which is where the real pain is.
Click to expand...
Click to collapse
I checked everything for rouge apps and found nothing excessively using resources, and I have had the same results with Gingeritis and Theory.

johnkc1975 said:
I checked everything for rouge apps and found nothing excessively using resources, and I have had the same results with Gingeritis and Theory.
Click to expand...
Click to collapse
Use Titanium Backup to Freeze All User apps (under Batch Option). Do this before you go to bed. In the morning see what the % Loss is.. Then you can Unfreeze them all one by one and find out the culprit.
Last night when I went to bed my GB rom had 63% juice left.. this morning I was at 47%.
Also, I am using liquid Rom w/ stock battery.

kriskmk said:
Use Titanium Backup to Freeze All User apps (under Batch Option). Do this before you go to bed. In the morning see what the % Loss is.. Then you can Unfreeze them all one by one and find out the culprit.
Last night when I went to bed my GB rom had 63% juice left.. this morning I was at 47%.
Also, I am using liquid Rom w/ stock battery.
Click to expand...
Click to collapse
That's a good idea , thanks.

Blame sense.
Sent from my ThunderBolt using XDA App

darkrom said:
Blame sense.
Sent from my ThunderBolt using XDA App
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Click to collapse
This, or the fact that it's an alpha leak. CM7 has ridiculously good battery life in comparison to both froyo and gb based sense roms, especially the latter.
Sent from my ThunderBolt using XDA Premium App

CM7 battery life Troubleshooting thread

I am loving this rom, but also having HORRID battery life, I am literally dropping 10% every 90 minutes with an extended battery.
27% Cell Standbye
26% Bluetooth
19% Display
Now I keep reading that these might be false readings, but I keep reading this as a response to those having **** for battery life... so maybe they are not false?
Anyone having good battery life show readings like this? Those with bad battery life, what are your readings?

I'm running the CM7 w/the 2.5 radio - I'm in a 100% full time 4G area, but seem to have worse battery life when the 4G radio is on, so I just keep the phone on 3G - if I need the faster data I can always turn it on and off.
I'm running the stock kernal, no overclocking or setcpu type stuff going on.
Would like to hear from folks running this ROM w/killer battery life, what are your settings, tweaks, etc. Please specify if you're running an MR1 or Mr2/2.5 version and/or running the latest OTA 2 radio that just came out like yesterday.
I just turned off my FB sync (I forgot about that). I don't have gmail set up to sync automatically either.
I'm going to do this procedure a little later today and see if it helps, this is for the EVO, but, ya know....
34. "Calibrate" battery - (1) Turn device ON, charge it for 8 hours (or until LED turns green), (2) unplug and turn it OFF, plug it back in and charge for 1 hour (or until LED turns green), (3) unplug and turn it ON, wait 2 minutes, turn it OFF, plug it back in, and charge for 1 hour (or until LED turns green), (4) unplug it, turn it ON, and use normally.
Anybody else try this?
today will be my first full day of work use w/this ROM so we'll see what happens.

Best to keep 4g off if not using it. Also, turn Bluetooth off when not in use.
Sent from my ThunderBolt using Tapatalk

i had horrible battery life the first day - then it got better. then i flashed mr2 official and battery life is really solid. getting like 15-20 hrs with 4g always on, bluetooth on sometimes. one important thing is having a custom lighting table which i will post later.

Bassdj427 said:
Best to keep 4g off if not using it. Also, turn Bluetooth off when not in use.
Sent from my ThunderBolt using Tapatalk
Click to expand...
Click to collapse
I have never, nor do I intend to ever do this. I got an extended battery for a reason. I can go all day and then some on the official roms, and all of the Sense roms.
I am not new to CM7, I have run it on both an Eris, and an Incredible. Both devices got FAR better battery life on CM7.
I am not complaining about this rom, or Slayhers hard work. I simply want to gather information so that we may help him trouble shoot.

Immediate wiper batt stats at 100% this morning on my extended batter will report back with usage and level details
Sent from my ThunderBolt using XDA App

stayin100 said:
Immediate wiper batt stats at 100% this morning on my extended batter will report back with usage and level details
Sent from my ThunderBolt using XDA App
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Click to collapse
This is exactly what I did lol, I had lost 10% in the first 90 minutes, now I am at 58% at 5 hours. I have been streaming google music for 2 hours of that 5 though. I would guess I should have seen an increase in battery usage, but have not.

The battery readings are wrong, I get a full day on 4G with my stock battery and see those numbers for cell standby etc. I use lean kernel though
Sent from my ThunderBolt using XDA Premium App

do you see those numbers for BLUE TOOTH though? We know good and well some numbers are fake, but that does not mean all.
FYI I am now at 37% and 7 hours and 7 minutes... I have not used google music since the last post and I am seeing the exact same battery drain as when I was using it.

I have absolutely horrible battery life when I'm at work (which is basically a bunker). On a normal day, my battery will be dead within 6 hours just sitting there on my desk.
However, when I am at home (great 4G signal), I see my device getting upwards of 16 hours with moderate use.
I will also say that since I upgraded to the most recent radio, I have been having much better battery life at home. Additionally, my phone has stayed much cooler with the most recent RC + new radio combination.

I heard if you change the render fx to n1 calibrated, then you will get like 1 hour extra of battery life. You can change the render fx by going to cyanogenmod settings.

11h32m11s on extended battery 69% left
The other numbers have to be wrong. Theres no way cell standby is the number one battery user.

my cell standby is also showing 30% with the new OTA 2 radio.

I switched to dream kernel (have not wiped battery stats) and am now at 88% after two hours, that puts me at 6% per hour verses yesterdays 10.

_Viper_ said:
I heard if you change the render fx to n1 calibrated, then you will get like 1 hour extra of battery life. You can change the render fx by going to cyanogenmod settings.
Click to expand...
Click to collapse
only works for AMOLED screens.
edit: to be clear, it only saves battery on AMOLED.

so what i have found is that after installing dream kernel and messing with the governor settings... along with being connected to wifi. my battery life has improved tremendously. i wiped battery stats this morning after a full charge and didnt notice any change.. then i flashed the kernel and messed with gov. settings... after rebooting ive noticed a huge huge difference.. just my 2 cents for anyone who had battery issues like me

Yesterday I was able to choke out 20 hours while in a 4G area the entire time.
Running RC 1.2, Imoseyon's leanKernel extreme mode (extremely undervolted and OCd to 1.4GHz) and using the InteractiveX governor.
Also, I just happened to reboot and surprisingly it only took away 1% of my battery. Amazing considering whenever I did that on a Sense ROM, I'd experience a battery loss ranging from 7%-10%.

beeholtz said:
so what i have found is that after installing dream kernel and messing with the governor settings... along with being connected to wifi. my battery life has improved tremendously. i wiped battery stats this morning after a full charge and didnt notice any change.. then i flashed the kernel and messed with gov. settings... after rebooting ive noticed a huge huge difference.. just my 2 cents for anyone who had battery issues like me
Click to expand...
Click to collapse
What settings did you land on as best?

cpu is set max to 368 mhz(very low) but i can crank it up if im doing somethign like playing games or downloading and want speed. brightness is at about 15-20 percent. the dream kernel and mr2.0 radio have made a big diff too. the dream kernel made the biggest. usually when id power off or reboot id lose 6-10 percent same as someone else i saw post. now i lose maybe 1 percent which is a huuuuge difference considering you lose 10 percent just because you reboot. also i try to stay on wifi wherever i go. on 3g i def notice it drain quicker, but i am no expert and there are a lot of people on here who by far outexperience and outknowledge me(my new 2 words) so im sure other people have some suggestions

Morkai Almandragon said:
I am loving this rom, but also having HORRID battery life, I am literally dropping 10% every 90 minutes with an extended battery.
27% Cell Standbye
26% Bluetooth
19% Display
Now I keep reading that these might be false readings, but I keep reading this as a response to those having **** for battery life... so maybe they are not false?
Anyone having good battery life show readings like this? Those with bad battery life, what are your readings?
Click to expand...
Click to collapse
That is strange I am also using CM7 with an extended battery and still have 41% left after 14:56 on battery.
battery use does show
cell standby 31%
phone idle 19%
android system 19%
wifi 11%
dialer 10%
display 6%
voice calls 3%

[Q] Best ROM for battery life?

I get horrible battery life with nearly every ROM Ive used on my Sensation, sometimes drains 10 percent an hour with the screen OFF. I have all data off, no wifi on, no apps running, juicedefender ultimate, and underclock when screen is off, and I read about people who can get a full day while using the total potential of the device. I had the same problem on my old device, so I returned it to T-Mobile and still have problems on the device I got in return. I dont expect to get two days on battery, I just find it crazy that I can barely use my device without the battery draining rapidly. I've considered undervolting but every rom ive downloaded didnt support it, so I was curious if you guys know of any efficient ROMs that save a ton of power and can be undervolted. I'm not very experienced with this kind of stuff and every ROM ive used has been poor on battery life, so help would be appreciated.

I am using InsertCoin ROM and it is running fine.

I used to have a 3% battery drop per every hour the phone was sleeping on stock rom and ARHD ics. Then I tried Virtuous Inquisition and it fixed the issue. Be sure to install the rom with its appropriate radio.
Sent from my HTC Sensation Z710e using XDA App

ICS isn't fully stable yet, but seriously.. give that a try. My battery has doubled its lifespan. I have NO idea what htc/google did, but I get about 12 hours moderate usage and still around 50%. Getting 12 hours back then was what I was hoping I could hit! Now it lasts beyond my expectations
I've also read that you tried undervolting and everything. I just stayed stock and it's great, no effort! no custom kernel, OC/UC , it's amazing. If you read through the threads, I'm not the only one experiencing awesome battery
If you must know, I'm using InsertCoin but I think ARHD and all the other ICS roms will pretty much solve your problem

Thaxtonator said:
I get horrible battery life with nearly every ROM Ive used on my Sensation, sometimes drains 10 percent an hour with the screen OFF. I have all data off, no wifi on, no apps running, juicedefender ultimate, and underclock when screen is off, and I read about people who can get a full day while using the total potential of the device. I had the same problem on my old device, so I returned it to T-Mobile and still have problems on the device I got in return. I dont expect to get two days on battery, I just find it crazy that I can barely use my device without the battery draining rapidly. I've considered undervolting but every rom ive downloaded didnt support it, so I was curious if you guys know of any efficient ROMs that save a ton of power and can be undervolted. I'm not very experienced with this kind of stuff and every ROM ive used has been poor on battery life, so help would be appreciated.
Click to expand...
Click to collapse
im still using stock rom. it using 1% nearly 3-4 hours when its in sleeping
Sent from my HTC Sensation 4G using XDA App

Ok thanks guys ill try various ICS roms over the next week and see if there's a difference.

Updated to ICS, lost hours of battery life?

I have updated to the official ICS (AT&T) and now I'm no longer getting much battery life. I had some issues with the update, so I wiped my phone and I have little to no apps.
I used to get 10+ hours of battery life, and now I don't even get 8 idle hours (so now it doesn't even last the work day). I checked Battery Usage after it was down to 20% and cell standby took up 90% of battery life.
I used to run JuiceDefender, but I reinstalled it on ICS.
Why have I lost so much battery life; how can I fix this?

Zenoxio said:
I have updated to the official ICS (AT&T) and now I'm no longer getting much battery life. I had some issues with the update, so I wiped my phone and I have little to no apps.
I used to get 10+ hours of battery life, and now I don't even get 8 idle hours (so now it doesn't even last the work day). I checked Battery Usage after it was down to 20% and cell standby took up 90% of battery life.
I used to run JuiceDefender, but I reinstalled it on ICS.
Why have I lost so much battery life; how can I fix this?
Click to expand...
Click to collapse
I have noticed the same thing on the stock ICS. Also noticed very slow charge times using USB (possibly true with A/C charging but I am normally asleep when I charge with A/C).
Is this just caused by the bloat that they put in? I want to flash a custom ROM just for battery life at this point.

Zenoxio said:
I have updated to the official ICS (AT&T) and now I'm no longer getting much battery life. I had some issues with the update, so I wiped my phone and I have little to no apps.
I used to get 10+ hours of battery life, and now I don't even get 8 idle hours (so now it doesn't even last the work day). I checked Battery Usage after it was down to 20% and cell standby took up 90% of battery life.
I used to run JuiceDefender, but I reinstalled it on ICS.
Why have I lost so much battery life; how can I fix this?
Click to expand...
Click to collapse
Im also seeing Cell Standby as a higher % than I used to.

install sky ics rom , this is the best battery . you can easy use more than 15hours . nexus mod 5.04 is also good . and much easier for noob to install . stock sucks .

Try Instigators Kernel. Does wonders for your SR battery....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

onealvideo said:
Try Instigators Kernel. Does wonders for your SR battery....
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
Instigator's kernel is for AOSP (CM9/AOKP) so for ICS based official or roms you will need a different one such as mohan's kernel:
http://forum.xda-developers.com/showthread.php?t=1701189
As for battery loss, there are some cases where if the flash wasnt done with 100% battery it could be reading the battery wrong and some people have had success with recalibrating their battery (look up battery calibration on play store). Now it was said that it really doesnt do anything for battery improvements and was just for stats use or whatever but for some people it helped their devices read the right battery stats.

Battery Life Complaints?

I was just wondering why there are so many complaints about the battery life on the s3...right now I'm on aosp pure Google and with 18 hours on the battery for the day I'm at 87%...This is pretty average with most of the aosp Roms I have used...I turn of WiFi and 4g unless I'm using them and I have a few battery tweaks in my init.d and build.prop that are on just about every site that is android related and are pretty easy to apply... If .7 % per hour is really something to complain about then get a junky flip phone...you should be able to get like 3 days out of that...battery drain is going to happen when you basically have a handheld laptop with the power and capabilities the s3 has...Just sayin

jamesd1085 said:
I was just wondering why there are so many complaints about the battery life on the s3...right now I'm on aosp pure Google and with 18 hours on the battery for the day I'm at 87%...This is pretty average with most of the aosp Roms I have used...I turn of WiFi and 4g unless I'm using them and I have a few battery tweaks in my init.d and build.prop that are on just about every site that is android related and are pretty easy to apply... If .7 % per hour is really something to complain about then get a junky flip phone...you should be able to get like 3 days out of that...battery drain is going to happen when you basically have a handheld laptop with the power and capabilities the s3 has...Just sayin
Click to expand...
Click to collapse
A lot of people here are considered in the 'heavy usage' category, which the stock battery drains quickly. For me, I could drain the battery in 5-6 hours easily. And fyi the time the phone is on matters very little, it's all about screen on time. With my extended battery I get 8-10 hours of SCREEN ON which is the most important aspect, glad the stock battery works okay for your usage, everyone is different.
Sent from my Verizon Galaxy S III using xda-premium

el o el
Sent from my SCH-I535 using xda premium

AndrewH05 said:
A lot of people here are considered in the 'heavy usage' category, which the stock battery drains quickly. For me, I could drain the battery in 5-6 hours easily. And fyi the time the phone is on matters very little, it's all about screen on time. With my extended battery I get 8-10 hours of SCREEN ON which is the most important aspect, glad the stock battery works okay for your usage, everyone is different.
Sent from my Verizon Galaxy S III using xda-premium
Click to expand...
Click to collapse
Geeez...what are you doing to kill an extended battery like that? I get that much while playing games and using my browser...i am also over clocked at 2106mhz...i wonder if there a lot of these going out with bad batteries...i see more complaints from people getting drain with screen off than on

jamesd1085 said:
Geeez...what are you doing to kill an extended battery like that? I get that much while playing games and using my browser...i am also over clocked at 2106mhz...i wonder if there a lot of these going out with bad batteries...i see more complaints from people getting drain with screen off than on
Click to expand...
Click to collapse
Unfortunately I believe you're confusing uptime with the amount of time the screen is on, I can guarantee you do not get 8-10 hours of the screen being on in a single charge with the stock battery, even at the lowest brightness setting. Post screen shots of those two screens when you get that much, I'd love to see it! That was only my 3rd cycle with the 4400 mAh battery, it's even better now, I just haven't taken any new screen shots.
Oh, and my brightness was at 50-75% that day.
Sent from my Verizon Galaxy S III using xda-premium

I hit 10 hrs screen time with my 4400mah battery
Sent from using xda premium

I get amazing battery life, anywhere from 2-4 days, depending on the on-screen time. which is around 2-5 hours.
stock battery, CleanROM 5.5.1

andybones said:
I get amazing battery life, anywhere from 2-4 days, depending on the on-screen time. which is around 2-5 hours.
stock battery, CleanROM 5.5.1
Click to expand...
Click to collapse
Same here! On CM10.1 I average 2-4 days, with normal usage. Very happy here!
Sent using Tapatalk