Develop Bugs

[Q] [MikFroyo] how have you extended battery life?

Hey guys, im using MikFroyo 4.4, stock kernel, no app killer. Im getting about 15 hours of what most would consider light-moderate use.
Im wondering what i can do to extend this without losing features. Is anyone getting better battery life and if so how?
custom kernel? overclock/underclock? other tweaks?
Thanks.

I use an SBC kernel (SBC #15 v7 from MS79723). There's rumors that it causes battery meltdowns, but from my experience I find that highly unlikely. I've been unplugged for 11 hours and I'm at 60% with what most consider moderate usage (about 100-150 texts, some light web browsing, a phone call or two, a few levels of angry birds). I'm also using Slayer's Cyan Dragon theme which looks badass but I'm not sure what it does for battery life (lessens it, makes it better, i dunno). The set up seems to be working pretty well after a couple of days of the kernel reading accurate battery stats.
I also reboot every morning when I wake up before I unplug to close any programs I still had running from the prior evening. Hope that helps.

Cool, anyone else using the same? different? Thanks guys

I too have been using SBC kernels for a while now with no problems and excellent battery life. Im also running a rom based on Mik's. Im using the 131 sbc kernel and i could not be happier. I also run setcpu for a screen off profile.

There are many different ways to conserve battery do a search. I believe HTC admits we should only get like 6 hours use. Try different kernals and see what works best, but give each one a couple charging cycles before deciding. The setup im using is great but peoples phones react differently.

Thanks for the input guys. I have been searching but i wanted some direct input.
Do you guys use app killers/memory managers too?I was using auto memory manager, but decided it was having little or no benefit at the cost of occassionally having to reload the UI.
Also what does SBC stand for?
Thanks everyone

ctbenk said:
Thanks for the input guys. I have been searching but i wanted some direct input.
Do you guys use app killers/memory managers too?I was using auto memory manager, but decided it was having little or no benefit at the cost of occassionally having to reload the UI.
Also what does SBC stand for?
Thanks everyone
Click to expand...
Click to collapse
I do not use anything but set cpu. Do a search for sbc theres a thread that gives all the explanation of different kernal terminology but im not sure exactly where it is

Ok cool, yea i looked it up last night and figured out what things like SBC and Havs are.
So what kind of battery life are you guys getting?
What kernel are u using with setcpu? you cant use that with stock kernel right?

ctbenk said:
you cant use that with stock kernel right?
Click to expand...
Click to collapse
You can, you just can't overclock on the stock kernel.

Kernel:
Netarchy 4.3.1 cfs-havs-sbc
Set CPU:
Screen off - 245 min 576 max
Screen on - 998 max 245 min (conservative)
Juice Defender:
Data turns off when screens off, reneables after unlock only. Enables every hour for 3 minutes to check email and such.
Task Manager: Quick system info task killer widget (only when I need to free memory for a heavy game)
Been listening to radio.com app over Bluetooth headphones while connected to wifi for 3.5 hours. Down to 76% from full charge.
Normal daily use for me is 200 texts, 50 or so emails, hour of calls, 2 hours of web, and at least 30 minutes of games. I take the phone off the charger at 7:30am and I can go till midnight no problem.
Friday I did a reboot at 10:50 am from a full charge and at midnight I was at 62% with a little lighter usage than listed above.

Thanks, sounds like the two most used kernels are netarchy and SBC. Any other good ones?
Sent from my Evo 4G. Powered by Mikfroyo, XDA, and the tears of iPhone users

wingzfan said:
Kernel:
Netarchy 4.3.1 cfs-havs-sbc
Set CPU:
Screen off - 245 min 576 max
Screen on - 998 max 245 min (conservative)
Juice Defender:
Data turns off when screens off, reneables after unlock only. Enables every hour for 3 minutes to check email and such.
Task Manager: Quick system info task killer widget (only when I need to free memory for a heavy game)
Been listening to radio.com app over Bluetooth headphones while connected to wifi for 3.5 hours. Down to 76% from full charge.
Normal daily use for me is 200 texts, 50 or so emails, hour of calls, 2 hours of web, and at least 30 minutes of games. I take the phone off the charger at 7:30am and I can go till midnight no problem.
Friday I did a reboot at 10:50 am from a full charge and at midnight I was at 62% with a little lighter usage than listed above.
Click to expand...
Click to collapse
What ROM are you using with that? Also does everything work with that ROM?

SweepinJR said:
What ROM are you using with that? Also does everything work with that ROM?
Click to expand...
Click to collapse
Uh mikfroyo, kinda figured that was a given based on the thread title lol.
Yeah everything works perfect.
Sent from my PC36100 using XDA App

I didn't even notice that the title had a rom name in it, and that MikFroyo was a rom. New to the EVO since Friday...

SweepinJR said:
I didn't even notice that the title had a rom name in it, and that MikFroyo was a rom. New to the EVO since Friday...
Click to expand...
Click to collapse
Then check out MikFroYo its great. Mik just released 4.5

painandpleasure said:
Then check out MikFroYo its great. Mik just released 4.5
Click to expand...
Click to collapse
Looking into it now. I have been running the Gingerbread CM7, but its pretty buggy still.

SweepinJR said:
Looking into it now. I have been running the Gingerbread CM7, but its pretty buggy still.
Click to expand...
Click to collapse
Ive ran the 4.4 and 4.5 betas now 4.5 final. Ive also run myms and cm7 Mikfroyo is by far the best in my opinion, but I like sense

I like sense but I have no loyalty to sense, aosp, or any other...I just want the important stuff (speed, battery life, working features, stability)

SweepinJR said:
I didn't even notice that the title had a rom name in it, and that MikFroyo was a rom. New to the EVO since Friday...
Click to expand...
Click to collapse
Welcome to the scene. Sorry for the smartass comment, literally just read the sprint echo announcement and had some anger to get out. Try mikfroyo with either launcher pro or adw ex for serious speed and smoothness. I prefer launcher pro for the sense like widgets without the sense like lag.
Sent from my PC36100 using XDA App

I'm running netarchy cfs have kernel and setup stepping down my clocks as the battery drains and juice defender. Also use app killer to close stuff every so often. Seems to work great for me.
Sent from my evo 4g

[Q] what is the best battery saving kernel?

hey guys, i am looking for a kernel that will save me on battery. i am running zombie 4 rom. it says it runs the dark x kernel. i don't need to be running at super speeds but i don't want screen freezes either. i just want to be able to play my satellite radio without the phone draining 3 percent every 5 min or so. any help would be great.

edshawn911 said:
hey guys, i am looking for a kernel that will save me on battery. i am running zombie 4 rom. it says it runs the dark x kernel. i don't need to be running at super speeds but i don't want screen freezes either. i just want to be able to play my satellite radio without the phone draining 3 percent every 5 min or so. any help would be great.
Click to expand...
Click to collapse
I would be interested in this as well. Currently I am Rooted and have tried a few ROM's but haven't found one yet that doesn't have some bug or another. {Granted, I haven't tried them all} Tried one ROM that really distorted my custom made Wallpapers, which is a big deal to me. So... yes, any info on a better battery life Kernel would be welcome.
Currently I am not a "heavy user" on the phone. Talk - Text - You Tube occasionally... that's it. Constantly looking for better ways to improve this already amazing phone.

Eugenes kernel has given me great battery life. Either get down with Eugene's Macnut ROM which already has it or search for it under the general section under the bounty thread for Eugene. Its in page....58?
Keep in mind that the "beta" kernel does not have bln support but works just fine so long as you use the lionheart governor.
If you can't find the bounty thread then I'm sorry for you.

Synergy kernel has been awesome on battery for many.
Sent from my SGH-T989 using XDA App

I second just using macnut rom. I've tried em all, and his always gets the best battery life (for me).
I also undervolt via system tuner pro so that I'm at 1137 at 1.51
Sent from my SGH-T989 using xda premium

G1ForFun said:
Synergy kernel has been awesome on battery for many.
Click to expand...
Click to collapse
+1 for Synergy, i got well over a day when i was running rooted stock debloated, etc. Also i use setcpu ondemand gov. 1620 max 384 min

edshawn911 said:
hey guys, i am looking for a kernel that will save me on battery. i am running zombie 4 rom. it says it runs the dark x kernel. i don't need to be running at super speeds but i don't want screen freezes either. i just want to be able to play my satellite radio without the phone draining 3 percent every 5 min or so. any help would be great.
Click to expand...
Click to collapse
How you use your phone determines the best way to get the best battery life. Basically there are two ways to save battery: cutting power when not in use and delivering less power to the processors.
If you use your phone intermittently throughout the day for texts or calls, you'll get the best battery results from kernels/ROMs/apps that cut unnecessary functions when you're not using the phone. For example, juice defender cuts your wifi and mobile data when your screen is off and reactivates it every 15min (can be configured otherwise) to check for notifications. Darkside's Digital Warfare utilizes something called "deep sleep" which actually completely turns off your processors when the screen is off, but keeps the basic cell radio on so if you receive a text/phone call it will wake up the processor. These functions have the largest and safest impact on battery life.
If you're constantly using your phone and you want better battery life, you basically only have one option: undervolting. This is essentially supplying less power to your processors, which can be done through system tuner. It's not a free ticket, however; if you undervolt too low then at higher frequencies (playing games, etc.) your processor will become unstable and your phone will randomly reboot. If you encounter this, then don't undervolt that much and up the voltage to the last safe level. Just for reference, undervolting by 50mV is usually considered safe and undervolting past 100mV usually results in boot loops. But how far you can actually undervolt depends on your individual phone hardware, there's no universal answer. Make sure to not set your undervolt settings to set at boot until you find a stable voltage. Otherwise, you'll be forced to restore a nandroid if you encounter a bootloop.
TL;DR
If your phone already lasts a day and you want it to last 2-3 days, look into ROMs/kernels/apps that cut unnecessary functions when not in use. Most effective way to extend battery.
If your phone lasts 8 hours and you want it to last a day because you're a heavy user, look into undervolting with system tuner.

kernel darkside
my phone used in 24h, very good

I'm using juggs. 5.0 with a DSX kernel. I've been getting about 11-12 hours with decent use.
Sent from my SGH-T989 using XDA App

stock rom. Just download a battery manager from the Market.

Battery Life ..

Okay, So i finally rooted my T-mobile SGS2 Model Number SGH-T989. I currently use Juggernaut-v5.0 ROM and the synergy Kernel which i installed last night. Also i removed all the unwanted progarms through TITA Backup. My battery life seems to be the same .. It dies pretty quickly and i know for sure it's not 10+ hours. Usually i'm at like 20% within 8-10 hours or maybe even earlier. I currently have 4g/Auto brightness on. What can i do to maintain my battery with 16+ hours people say even with data on and max brightness ?
The Progarms i have for my phone are : CPU Tuner, Go Keyboard, Go Launcher, Go Power Master, Go SMS Pro. Reason why i have the GO keyboard is because the Keyboard that came with the JUGG Rom is bad and it can't swype.. that's the only reason why i had to install the GO keyboard. Also i wonder if i can install back the old swype keyboard that came with the phone because I tried installing the swype beta and it doesn't let me install.. It says "problem parsing the package" Another problem i have is the Bloater doesn't seem to open, but i see the list T-Mobile SGS2.. just nothing pops up when i click on it.
HELP PLEASE !

Flash Eugene's streamline kernel for battery life.The faux kernel that comes with this rom is nice and fast but not that great on battery life.
Sent from my SGH-T989

Synergy kernel is usually great on battery. What governor are you using? There are issues with some locking up, if I remember right. Try On Demand.
Sent from my beastly Galaxy S 2.

JaylanPHNX said:
Synergy kernel is usually great on battery. What governor are you using? There are issues with some locking up, if I remember right. Try On Demand.
Sent from my beastly Galaxy S 2.
Click to expand...
Click to collapse
How do i find out what governor i'm using and try on demand? O_O

I'm not sure where the setting is in CPU Tuner, but it's on the main screen if you use SetCPU.
Sent from my beastly Galaxy S 2.

JaylanPHNX said:
I'm not sure where the setting is in CPU Tuner, but it's on the main screen if you use SetCPU.
Sent from my beastly Galaxy S 2.
Click to expand...
Click to collapse
lol .. Gotta pay $2 for that SetCPU? -_-

People spend more than that on a bag of chips and a coke! These are tools to properly adjust how your $500+ phone runs! Cheap mother...
Sent from my beastly Galaxy S 2.

Can anybody help me with my problem .. My phone lasts 6-8 hours max -_-.

Maybe re-flash the ROM?
Sent from my beastly Galaxy S 2.

I wouldn't bother to figure this out because the ICS will arrive tonight at 11PM

Flash a different ROM and kernel combination. For me synergy never worked well with my phone. It's different per phone.
And you can't go by battery life with the overall time. You need to check out screen on time and voice time. 4 hours is about the average +/- 30mins
Sent from my SGH-T989D using xda premium

Rom w/ Best Battery Life

curious to see which ROM you experienced the best battery life with. I am not a big flasher but used darkside v8 and CMX and seems like v8 got better battery life. Mainly a web browser, email, pandora. not big on games. what has your experience been like so far?

Nothing wrong with stock ICS (if you tune it right). No need for CPU sleepers scripts or something like that if you keep you phone clean from sloppy written apps.

Vlad_z said:
Nothing wrong with stock ICS (if you tune it right). No need for CPU sleepers scripts or something like that if you keep you phone clean from sloppy written apps.
Click to expand...
Click to collapse
Wow dude can you give me some tips on how to get this type of battery life. I'll kick CM9,CM10, AND AOKP to the side to get half that production. The best I've done is 30% after 28 hours hitting Youtube pretty hard .

Vlad_z said:
Nothing wrong with stock ICS (if you tune it right). No need for CPU sleepers scripts or something like that if you keep you phone clean from sloppy written apps.
Click to expand...
Click to collapse
Ohhhh great master tell us your tweaks

Its called not using your phone and letting it sleep
Sent from my SGH-T989 using xda premium

teambestyrandy said:
Its called not using your phone and letting it sleep
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Lol, that can't be the answer I like using Jedi Mind Trick, I'm getting far better battery life than when I was on the Darkside Rom, even with tweaks.

Jedi ROM is rocking. Beutiful with battery and really fast

whick kernel are you guys using with jedi? faux 006 or faux 007?

Alpha-Wat3rloo said:
Lol, that can't be the answer I like using Jedi Mind Trick, I'm getting far better battery life than when I was on the Darkside Rom, even with tweaks.
Click to expand...
Click to collapse
Sure it can. 1 hour of screen time?
I personally use stock rooted GB and average 1 day 12 hours with 3 hours of screen time. I've got screen shots in one of the other battery life threads. That's fine for me.
Sent from my SGH-T989 using xda app-developers app

faux 07 is stock with ver 4 of the jedi rom - its by far the best i've used so far

Some comments/explanation on my previously posted stats are here:
http://forum.xda-developers.com/showthread.php?p=30232606#post30232606

bxrdj said:
faux 07 is stock with ver 4 of the jedi rom - its by far the best i've used so far
Click to expand...
Click to collapse
heard that some people are having deep sleep issues with 07 so they are going back to 06.

Vlad_z said:
Nothing wrong with stock ICS (if you tune it right). No need for CPU sleepers scripts or something like that if you keep you phone clean from sloppy written apps.
Click to expand...
Click to collapse
Why even have a phone if you don't use it? Out of 96 hours you used it for 1 hour, thats like 15 min a day. That's not showing good battery life of usage, it's showing battery life on standby
Sent from my SGH-T989 using Tapatalk 2

elflip88 said:
Why even have a phone if you don't use it? Out of 96 hours you used it for 1 hour, thats like 15 min a day. That's not showing good battery life of usage, it's showing battery life on standby
Sent from my SGH-T989 using Tapatalk 2
Click to expand...
Click to collapse
You right. I was experimenting those days. Besides it was 30 min per day - 15 min of screen time (checking email and reading news) and 15 min of voice call.
This test also shows that there are no rough apps on my phone which could eat battery on background. And the ROM is pretty stable. What would be your results in similar scenario?
If you have read my posts - one day I had 7:40 hours of screen time (was reading ebook) and had 40% battery left. This is another type of usage.
So power consumption is vastly different depending on type of usage... if say you are looking YouTube through 4G your phone will be dead in 2-3 hours...
I have posted results of power consumption during different type of usage so one can compare more objectively and not against "OMG this ROM/app are so good" statements.

Don't have any stats to prove it other than experience but after a few hours on Jedi Mind Trick I can already tell it's being great on battery compared to any AOSP based ROM and it's SNAPPY fast! :thumbup:
For some reason it reminds me of the Darkside GB based ROM Digital Warfare (this thing was crazy good on battery!).
Sent from my SGH-T989 using Tapatalk 2

some people use 007 and others 006. New JEDI V5 is ready to download

I'm on rooted Stock ICS and get 6-10 hours of battery life depending how much I'm using my phone whether it's on facebook,twitter,foursquare, instagram, textin etc etc.

[Q] Battery Life - What are you getting?

I don't know that I've ever seen this explicitly stated by anyone, so I thought I'd ask straight out.
What kind of battery life is everyone getting?
On average, say, per hour, with moderate use how much battery do you lose?
Are you stock or rooted? What ROM and kernel if rooted?
And... GO!
Screenshots welcome and encouraged!

ediebol said:
I don't know that I've ever seen this explicitly stated by anyone, so I thought I'd ask straight out.
What kind of battery life is everyone getting?
On average, say, per hour, with moderate use how much battery do you lose?
Are you stock or rooted? What ROM and kernel if rooted?
And... GO!
Click to expand...
Click to collapse
Everyone's is gonna be completely different. Most will post in the roms what they are seeing on avg. There's to many variables that go into that to really narrow things down. Just my opinion on that.

milky1112 said:
Everyone's is gonna be completely different. Most will post in the roms what they are seeing on avg. There's to many variables that go into that to really narrow things down. Just my opinion on that.
Click to expand...
Click to collapse
I understand that everyone is going to be completely different, that's the point. The idea is that if people were to post a wide variety of conditions, along with their battery-related results, others can try to tweak their settings closest to what fits their needs.
Yes, it is easily found amongst the forums for individuals ROMS/kernels, but why not put together a one-stop-shop for reference?

ediebol said:
I understand that everyone is going to be completely different, that's the point. The idea is that if people were to post a wide variety of conditions, along with their battery-related results, others can try to tweak their settings closest to what fits their needs.
Yes, it is easily found amongst the forums for individuals ROMS/kernels, but why not put together a one-stop-shop for reference?
Click to expand...
Click to collapse
IMO better to keep with the Roms/Kernels (Under development) or someone may mistake and try to add something to a rom that doesn't work. Just my thoughts, I understand the goal, and I'm always looking to improve upon my battery life for my use. Haven't had phone a day yet to have any real results yet to mine.. We'll see how the world chimes in on this too tho..
Current: The Peoples Rom, 69% battery remaining, 6 hrs 14 min on bat, 1 hr 20 min screen on. Just to start it off a bit.. Will update this evening.

I'm stock non rooted with fairly heavy useage and Juice Defender free and I'm sotting at about 9 hours and 15% battery
Sent From My Galaxy S3 With XDA

ediebol said:
I don't know that I've ever seen this explicitly stated by anyone, so I thought I'd ask straight out.
What kind of battery life is everyone getting?
On average, say, per hour, with moderate use how much battery do you lose?
Are you stock or rooted? What ROM and kernel if rooted?
And... GO!
Screenshots welcome and encouraged!
Click to expand...
Click to collapse
On wifi, about 4 minutes per percent of battery for screen on time + 2 hours per percent for extra screen off time. This is with the screen brightness very low though.
So, about 400 minutes of continued usage or 200 hours of standby.
Odex blue 1.2 ROM, Google Now off, report location in Maps off.

Alrighty, now we're rolling... Here's where I currently stand:
5h45m on battery - 47% left... Heavy use today though.
AOKP Rom, KToonsez kernel - undervolted and slightly underclocked.

Charging my phone now. But yesterday i got 27 hours before reaching 25%
ROM: Stock Jellybean Touchwiz (rooted of course)
Kernel: Ktoonz kernel for touchwiz (using Ktoonservative/noop stock voltages n touch boosters disabled)

I'm stock and can get 24 hours+ with about 3+ hours of screen on time easily. This is with brightness at about 80% and no battery saving options on.
Sent from my Nexus 7 using Tapatalk 2

Avg around 25-26 hrs.
SlimBean w/ KT747 kernel
Under -50mhz, UC to max around 1200, cm9 auto bright settings and juice defender
-SlimBean...the bulimic's choice for the Galaxy III

Just a full days usage and still half my battery left. No custom kernel or stuff like that. CM10 and that's it
Sent from my SPH-L710 using xda premium

Here we go
Sent from my SPH-L710 using xda premium

So this might not be the forum but hopefully someone will take pity on me and point me in the right direction.
As u can see. This bad boy ain't even sleeping. If not for juice defender i wouldn't make it through the day with moderate use. Now I'm in the islands where there ain't much good service to begin with so this might get a Lil tricky. Also i am unrooted. If that helps. I think it's an app but i guess i need to find another app to find the app that's the culprit. Thx in advance.
Sent from my SPH-L710 using xda app-developers app

Sent from my SPH-L710 using xda app-developers app

Pretty solid :thumbup:
Sent from my SPH-L710 using xda premium