Database Users

[Q] How to tweak rom/kernel for best batery life

Hello, i'm using typhoon latest rom with latest kernel from dorimanx (7.1A), but im gonna go on vacations and i really need my phone to last as long as possible, is there any way to tweak rom or kernel for better batery life? thanks

carlosribeiro1999 said:
Hello, i'm using typhoon latest rom with latest kernel from dorimanx (7.1A), but im gonna go on vacations and i really need my phone to last as long as possible, is there any way to tweak rom or kernel for better batery life? thanks
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Click to collapse
What sort of battery drain do you currently get on standby? Can you tell me the reading in ma from CurrentWidget? If it's 3-5 ma with mobile network/wifi/bluetooth etc on and 2ma in airplane mode then you're fine,but if it's higher it can definitely be improved.

If you don't plan to use mobile internet connection then disable 3G and turn 2G mode only. Turn off as many widgets as you only can, disable Location Service and auto sync. Install apps on phone memory only.
Also Dorimanx kernel is a hell of battery drainer, use another one like stable Tytungs etc.
Use dynamic/powersave CPU governors or use CPU speed profile apps like SetCPU and make several profiles for it.
This is only a few of tips we can give here.

Nigeldg said:
What sort of battery drain do you currently get on standby? Can you tell me the reading in ma from CurrentWidget? If it's 3-5 ma with mobile network/wifi/bluetooth etc on and 2ma in airplane mode then you're fine,but if it's higher it can definitely be improved.
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Click to collapse
im getting between 10 to 15 ma with 2g on and sync all the rest is off, and im using smartassv2 governator i dont know if this can be improved .. and i really like dorimanx kernel becouse it feels faster then tytung and it gets less hotter becouse right now is really hot these days and i nearly cant use the phone with tytung kernel becouse it gets crazy hot :O

carlosribeiro1999 said:
im getting between 10 to 15 ma with 2g on and sync all the rest is off, and im using smartassv2 governator i dont know if this can be improved .. and i really like dorimanx kernel becouse it feels faster then tytung and it gets less hotter becouse right now is really hot these days and i nearly cant use the phone with tytung kernel becouse it gets crazy hot :O
Click to expand...
Click to collapse
Well the apps I use to reduce my battery drain are JuiceDefender and SetCPU. Set the profiles to be 245-576 Mhz when screen is off (smartassv2) and whatever else you like when screen is on. I never had any overheating problem with Tytung's kernel though. It was the most stable and just as fast as Dorimanx's kernel IMO. Still, using ICS now so I can't really judge about the newest versions of each of them.

retsam88 said:
If you don't plan to use mobile internet connection then disable 3G and turn 2G mode only. Turn off as many widgets as you only can, disable Location Service and auto sync. Install apps on phone memory only.
Also Dorimanx kernel is a hell of battery drainer, use another one like stable Tytungs etc.
Use dynamic/powersave CPU governors or use CPU speed profile apps like SetCPU and make several profiles for it.
This is only a few of tips we can give here.
Click to expand...
Click to collapse
Nigeldg said:
Well the apps I use to reduce my battery drain are JuiceDefender and SetCPU. Set the profiles to be 245-576 Mhz when screen is off (smartassv2) and whatever else you like when screen is on. I never had any overheating problem with Tytung's kernel though. It was the most stable and just as fast as Dorimanx's kernel IMO. Still, using ICS now so I can't really judge about the newest versions of each of them.
Click to expand...
Click to collapse
I think his kernel is the same in battery drain over any of them. Ive tried them all. If anything, seader_r9 was the best and it was only a small improvement. My battery life is pretty short, but im a HEAVY user. Constant web browsing, constant text messaging contant GPS. And it lasts for the majority of the day. Now i have an .sh script which helps tweak the smartassV2 settings. I get about 110-200ma drain when doing simple web browsing or replying to a text.
One must also keep in mind that the ROM has a major part in battery drain as well. I heard from many users on here that MIUI has the best battery life. All in all i think any kernel you choose will have reletively (i spelled that wrong -.- its still early ) the same battery drain. It really comes down to the amount of use your phone has. But as stated before, turning off data greatly saves the battery as does turning down the screen brightness, fyi, automatic brightness sucks battery life too. Plus android does a horrible job polling the light sensor -.- it shouldnt take an average of 3 seconds to get the changed light value..
Theres not much 'tweaking' you can do to give you like an hour extra of battery life. Our batteries are only 1350mah batteries and thats really small for such a huge screen. My Touch Pro 2 has a 1500 and a much smaller screen. There are a lot of good aftermarket batteries on ebay that you could get which would extend your running time.

thanks guys, im gonna give a shot to tytung kernel, but im also gonna take a look to the aftermarket baterys

Typhoon rom support undervolt so if your phone is gettin' hot I suggest you to tweak the voltages as explained to original thread first page, it makes a big difference compared to stock.

Funnydwarf said:
Typhoon rom support undervolt so if your phone is gettin' hot I suggest you to tweak the voltages as explained to original thread first page, it makes a big difference compared to stock.
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Click to collapse
and how do I do that? witch are the best values?
Sent from my HTC HD2 using XDA

Good advice here. There's a lot you can do (as already advised) but always some performance tradeoffs. The standard HD2 battery is only 1230 mA... not 1350. Smartassv2 in DM's kernels is excellent for performance and settles down nicely in standby - but it will pull-on your battery when used. There's no substitute for keeping a few extra charged batteries around (when you need them), along with AC & DC chargers + cable, in a small carrying case.

RobE. said:
Good advice here. There's a lot you can do (as already advised) but always some performance tradeoffs. The standard HD2 battery is only 1230 mA... not 1350. Smartassv2 in DM's kernels is excellent for performance and settles down nicely in standby - but it will pull-on your battery when used. There's no substitute for keeping a few extra charged batteries around (when you need them), along with AC & DC chargers + cable, in a small carrying case.
Click to expand...
Click to collapse
You don't need to use dorimanx's latest kernels, his stable kernels in fact do a better job at not overheating and have only 2ma drain on standby. I know 5.9, 6.3, 6.4d, and 6.9A (ics hwa) give a great battery life.

hengsheng120 said:
You don't need to use dorimanx's latest kernels, his stable kernels in fact do a better job at not overheating and have only 2ma drain on standby. I know 5.9, 6.3, 6.4d, and 6.9A (ics hwa) give a great battery life.
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i cant find any of those kernels in the mirrors

The nearest versions are fine
http://www.dorimanx.com/

hengsheng120 said:
The nearest versions are fine
http://www.dorimanx.com/
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Click to collapse
witch one do you think is the best in batery to use with typhoon rom? becouse im kinda lost there, is has a lot of choises

carlosribeiro1999 said:
witch one do you think is the best in batery to use with typhoon rom? becouse im kinda lost there, is has a lot of choises
Click to expand...
Click to collapse
I like 6.5D it works perfectly.

elesbb said:
I like 6.5D it works perfectly.
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Click to collapse
because with tytung kernel I get 10 ma in standby only with wifi one sync and using 2g network
Sent from my HTC HD2 using XDA

carlosribeiro1999 said:
because with tytung kernel I get 10 ma in standby only with wifi one sync and using 2g network
Sent from my HTC HD2 using XDA
Click to expand...
Click to collapse
Wow, in standby im on average around 7-3mA with the occational spikes when receiving texts or messages over wifi. And when on data its about the same, just not as often in the 3ma range.

elesbb said:
Wow, in standby im on average around 7-3mA with the occational spikes when receiving texts or messages over wifi. And when on data its about the same, just not as often in the 3ma range.
Click to expand...
Click to collapse
so I really don't know what's wrong here, now I'm using dorimanx 6.5D and I get 11ma with the same stuff on has before
Sent from my HTC HD2 using XDA

carlosribeiro1999 said:
so I really don't know what's wrong here, now I'm using dorimanx 6.5D and I get 11ma with the same stuff on has before
Sent from my HTC HD2 using XDA
Click to expand...
Click to collapse
CHeck to see if you have any wake locks.

carlosribeiro1999 said:
so I really don't know what's wrong here, now I'm using dorimanx 6.5D and I get 11ma with the same stuff on has before
Sent from my HTC HD2 using XDA
Click to expand...
Click to collapse
Which apps are running in the background? People constantly say that task killers make no difference yet whenever I've opened something and haven't killed it I get a higher battery drain than normal.
Also, use JuiceDefender and SetCPU to lower the drain.

Confused about battery life

Is battery life is good according to this ?I am liitle bit of confused that if it is the time for replacing battery or not.
I was 20 min on 2g and rest is on 3g without turning off data for a moment. I was playing and browsing and downloading (2 or 3 little things ) most of the time.
I know ..the graph is showing little good (not best) statistics. But when observing the battery consumption from indicator ,I am horrified.Some time 2% reducing within 2 min.
Is screen on time is really a good measurement for battery?

It's good, no need to change, redmi 2 can make a max of 3hrs and 30minutes of continue use

TecnoTailsPlays said:
It's good, no need to change, redmi 2 can make a max of 3hrs and 30minutes of continue use
Click to expand...
Click to collapse
Thanx for the confirmation.

Actually its pretty good. i have an almost new battery, a month and a half of use, only chatting/opening some minor apps with wifi and only 2 cores running and still cant have more than 3~3:30 h of SoT, but you managed 50% for 2 hours with 3g on and gaming.
May i ask you which rom are you using and kernel(if you flashed another kernel)?

W
Which ROM r u using bro
And themes to
Kernel also
Thanks

igorinolw said:
Actually its pretty good. i have an almost new battery, a month and a half of use, only chatting/opening some minor apps with wifi and only 2 cores running and still cant have more than 3~3:30 h of SoT, but you managed 50% for 2 hours with 3g on and gaming.
May i ask you which rom are you using and kernel(if you flashed another kernel)?
Click to expand...
Click to collapse
Jharohan56 said:
Which ROM r u using bro
And themes to
Kernel also
Thanks
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Click to collapse
Cm 13 (last build)by kumajaya sir with Google play sevice battery drain fix tweak.

Thanks where is Google play service battery drain fix tweak

Use any apps like hebf for Google play service bat. Drain fix.

raymond_bqg said:
Cm 13 (last build)by kumajaya sir with Google play sevice battery drain fix tweak.
Click to expand...
Click to collapse
Oh ty
May i ask you again if i need to check all switchs in hebf tweak, or just some of these?

igorinolw said:
Oh ty
May i ask you again if i need to check all switchs in hebf tweak, or just some of these?
Click to expand...
Click to collapse
Go as per you need.
If u go for all performance tweak then.....battery drain will be little faster.
If u go for all battery tweak then....performance will be much slower.
I only go for wifi sleep and Google play service battery drain fix and no performance tweak.

[MIDO] SOT with custom ROM

Below are screenshots of my SOT (using Slim ROM and Faust Kernel). The SOT measured with PCMark "Work 2.0 battery life" test. I started the test when the battery was at 85%, and it stopped automatically when the battery reached 20%. Everything else was running as normal - lots of WhatsApp messages coming in (no popups) and even an incoming phone call (which I didn't answer).
Adaptive brightness is enabled, with the brightness level set at 40%. The test ran overnight (note that the screen is on, and active the whole time - basically, it keeps running all sorts of benchmarks over and over again, with the screen redrawing continuously).
Result: from 85% to 20% took 11 hours and 54 minutes. This equates to about 17 hours SOT .

Can you try that with AospExtended ROM V4.4 and with the same kernel?

diomapaulpuyat said:
Can you try that with AospExtended ROM V4.4 and with the same kernel?
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Click to collapse
Nope. I am quite happy with Slim, and I have no intention to change it any time soon.

DarthJabba9 said:
Nope. I am quite happy with Slim, and I have no intention to change it any time soon.
Click to expand...
Click to collapse
Outside of battery benchmarks, how long was your SOT?

Everybody has different user scenarios & different methods of using a phone.
This SOT of yours is not using mobile data network, only WiFi, correct?
Try to do a test using LTE or WCDMA only, without WiFi and share the result with us.
Cheers!

Faust Kernel with governor tweaks on the newest RR build and i can easily get 10 hours of SOT, sometimes 12 hours

As already indicated, everything was running as normal (which includes WiFi, bluetooth, and LTE enabled), and the PCMark battery test was running on top of it all. Performance benchmarks running non-stop for 12 hours on a phone is objective enough for me. YMMV.

I've been playing around for a few days now to find a good balance between battery and a good performance. LineageOS 14.1 with Vulcan kernel, currently at 8h SOT with 35% battery left. I usually just install a kernel and let it run on defaults so still learning what things do.

In Miui with Velvet, is not precisely SoT (actually it is because how the hell am i suppose to play with the screen off lol) but i'm really surprised to see how long the battery lasts even playing games.
Yes i was on Wi-Fi all the time but still... i would test LTE but i don't have , i just go up to 3G .

Viper os

[email protected] said:
Viper os
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Click to collapse
ReDuXX528 said:
Faust Kernel with governor tweaks on the newest RR build and i can easily get 10 hours of SOT, sometimes 12 hours
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Click to collapse
PriPhaze said:
In Miui with Velvet, is not precisely SoT (actually it is because how the hell am i suppose to play with the screen off lol) but i'm really surprised to see how long the battery lasts even playing games.
Yes i was on Wi-Fi all the time but still... i would test LTE but i don't have , i just go up to 3G .
Click to expand...
Click to collapse
heys guys you didnt put much information. are you using the same method as DarthJabba9 (did you use pcmark app) ? or is it just youre normal usage time?
and tell me the best rom for battery(i think its slim rom)

DarthJabba9 said:
Below are screenshots of my SOT (using Slim ROM and Faust Kernel). The SOT measured with PCMark "Work 2.0 battery life" test. I started the test when the battery was at 85%, and it stopped automatically when the battery reached 20%. Everything else was running as normal - lots of WhatsApp messages coming in (no popups) and even an incoming phone call (which I didn't answer).
Adaptive brightness is enabled, with the brightness level set at 40%. The test ran overnight (note that the screen is on, and active the whole time - basically, it keeps running all sorts of benchmarks over and over again, with the screen redrawing continuously).
Result: from 85% to 20% took 11 hours and 54 minutes. This equates to about 17 hours SOT .
Click to expand...
Click to collapse
What's Setting You Do On Faust Kernel
I. Am not able to use SS.

Kiran Amin said:
What's Setting You Do On Faust Kernel
I. Am not able to use SS.
Click to expand...
Click to collapse
I am not sure what you mean. I simply installed the Faust kernel. AFAIK, there were no settings (I don't use Faust anymore, so I don't know whether settings are added later). Sorry, but I don't know what you mean by "SS".

@DarthJabba9 bro he meant by screenshot. Just wanna know, what custom rom and kernel are using now? Thanks!

deathkid13 said:
@DarthJabba9 bro he meant by screenshot. Just wanna know, what custom rom and kernel are using now? Thanks!
Click to expand...
Click to collapse
SlimROM - stock kernel.

Battery life

I just got a LeEco Pro 3 (US version) on Amazon, put on lineage 14.1 on it, and for a device with such a big battery, battery life is atrocious. I'm getting estimates of less then a day. Is there a kernel or ROM that will improve this?
Sent from my LEX727 using Tapatalk

I have had Pro 3 for one year, running 6.01 with Nova Launcher. Battery life is not nearly one day in my heavy usage.
But, have Le Eco Fast Charging Battery, which gives me constant juice.
I probably use 2 full charges a day.
How hard is it to flash ROM you are using? Stable? Difference with stock?
The chip is fast, good storage, RAM.
Good luck.
Sent from my LeEco Le Pro3 using XDA Labs

PloniAlmoni said:
I just got a LeEco Pro 3 (US version) on Amazon, put on lineage 14.1 on it, and for a device with such a big battery, battery life is atrocious. I'm getting estimates of less then a day. Is there a kernel or ROM that will improve this?
Click to expand...
Click to collapse
I had the same problem with that rom that's why I switched to Omni. Much better battery life.

cas8180 said:
I had the same problem with that rom that's why I switched to Omni. Much better battery life.
Click to expand...
Click to collapse
Is Omni still under development? I kind of want the October patch at least, as I use an open wifi portal and also want to use my bluetooth full time for my smartwatch, and live in a major urban area where if any exploits of these vulnerabilities is in the wild, they would be here.
Edit: looks like it is under active development, I spotted right away the KRANK patches: https://omni.cmxlog.com/7.1/zl1/

Sorry to say but for battery life Stock based ROMs are the best. I've found paranoid Android and Omni to be two of the better nougaty ROMs in that regard. I have some suggestions to help. Use kernel auditor to change parameters. Set first cluster to 1280 second to 1000. Schedule tasks on awake cores. Set GPU to 520 max and change governor to simple ondemand. Change io scheduler to Noop. I can get a day and a half of moderate usage.

I have an x722 on the Banggood vendor ROM and my battery life is pretty good. However I have my phone in Airplane Mode all the time with Wi-Fi enabled, and I've removed pretty much all LeEco applications. I mostly browse the web on the phone (very light text-based pages with few images, if any) while listening to local, offline music. Yesterday I was watching a bunch of 480p Youtube videos (in Chrome, stupid YT downgrades quality in mobile browsers) and my battery life got a bit low, around 70%. Okay, I guess. I think [email protected] YT would cause your battery to drain a lot quicker, especially if you're using the official YT app.
I keep my screen on a fair bit while commuting, but I don't use data; I just read offline pages. Maybe you should try going back to debloated stock, and then compare battery life on both ROMs. The issue could also be a rogue app. Use Greenify.

sk8223 said:
I have an x722 on the Banggood vendor ROM and my battery life is pretty good. However I have my phone in Airplane Mode all the time with Wi-Fi enabled, and I've removed pretty much all LeEco applications. I mostly browse the web on the phone (very light text-based pages with few images, if any) while listening to local, offline music. Yesterday I was watching a bunch of 480p Youtube videos (in Chrome, stupid YT downgrades quality in mobile browsers) and my battery life got a bit low, around 70%. Okay, I guess. I think [email protected] YT would cause your battery to drain a lot quicker, especially if you're using the official YT app.
I keep my screen on a fair bit while commuting, but I don't use data; I just read offline pages. Maybe you should try going back to debloated stock, and then compare battery life on both ROMs. The issue could also be a rogue app. Use Greenify.
Click to expand...
Click to collapse
If I turned off cell data I'd have amazing battery life on any phone. That's why you have such battery life...
Sent from my LEX727 using Tapatalk

Well, yeah. Any phone with a SIM in it is constantly searching for a signal. But if you really want to know if there's a significant difference, test the phone's battery life with just Wifi enabled. If you're still getting bad battery life, it's something else.

sk8223 said:
Well, yeah. Any phone with a SIM in it is constantly searching for a signal. But if you really want to know if there's a significant difference, test the phone's battery life with just Wifi enabled. If you're still getting bad battery life, it's something else.
Click to expand...
Click to collapse
I think it was the ROM I was using, LineageOS 14.1, using the new Paranoid Android Nougut (PA 7.3.x something) ROM, I'm getting two days of battery life.

PloniAlmoni said:
I think it was the ROM I was using, LineageOS 14.1, using the new Paranoid Android Nougut (PA 7.3.x something) ROM, I'm getting two days of battery life.
Click to expand...
Click to collapse
Same here my findings exactly!

I appreciate all Lineage is doing for ROM development, but it seems others have better kernels or something. Is it all in the kernel, do you think, or is there some battery optimization going on in the ROMs themselves?

People try to say that custom roms aren't as good as stock. I have been having nothing but stellar battery life on Paranoid 7.3.1 I can't much more than 6 1/2 hours and counting with extremely heavy usage. Was also taking photos all day

Man I envy you guys so much, I own the x727 model and I'm eager to flash a custom ROM on it but I don't know how and am mostly afraid to do it :'c

cas8180 said:
People try to say that custom roms aren't as good as stock. I have been having nothing but stellar battery life on Paranoid 7.3.1 I can't much more than 6 1/2 hours and counting with extremely heavy usage. Was also taking photos all day
Click to expand...
Click to collapse
I think your eyes are screaming with minimal brightness. Only just for record. Light browsing maybe only seen on...

aproape said:
I think your eyes are screaming with minimal brightness. Only just for record. Light browsing maybe only seen on...
Click to expand...
Click to collapse
Ok

Is there any bug on latest Paranoid android ? I'm planning to flash this when it comes 2 days battery life like you said b4

Reduce CPU usage, use Kernel Adiutor app, set max not 2140 Mhz, but 1400 Mhz, etc, I did this on my old phone 4.2 android and I usually had 1 week usage with 2500 mAh battery.
I still don't get what is little and BIG setting for CPUs.. I set them both lower.

rudolph323 said:
Reduce CPU usage, use Kernel Adiutor app, set max not 2140 Mhz, but 1400 Mhz, etc, I did this on my old phone 4.2 android and I usually had 1 week usage with 2500 mAh battery.
I still don't get what is little and BIG setting for CPUs.. I set them both lower.
Click to expand...
Click to collapse
Yes you are right, lower the max of CPU speed, normal 80-90% app run at not even 1000MHz. If you want more battery lower both BIg and LIttle core max speed down I can't see it mak ethe phone slow/lag or anything like that.

cas8180 said:
People try to say that custom roms aren't as good as stock. I have been having nothing but stellar battery life on Paranoid 7.3.1 I can't much more than 6 1/2 hours and counting with extremely heavy usage. Was also taking photos all day
Click to expand...
Click to collapse
How has your screen only consumed 1k mAh ? I'm on stock rom and my phone consumes close to 2400 on a full charge

Xiaomi Mi A1 Android 9.0 Treble Port - Kernels Comparison

As you all know the final version of Android 9.0 (PR) was recently ported to Xiaomi Mi A1 by taking advantage of Project Treble. Although there are more than one Kernels out there with Treble support, there is no thread to actually compare them. So if you have tried this port, please write down your experience with the Kernel you used.

Iam using the Custom Rom Treble non OC Kernel from here: https://forum.xda-developers.com/mi-a1/development/kernel-extreme-kernel-1-0-mi-a1-t3769702
With that i get the most Battery life out. About 2 Day´s without charging and mostly reading News, Texting with Whats App, and Listening much Music.
So not much intensive and no Gaming.
Last Charge was before 16 hours and 5 Days are left, because i do nothing with the Device =P

Maximaro said:
Iam using the Custom Rom Treble non OC Kernel from here: https://forum.xda-developers.com/mi-a1/development/kernel-extreme-kernel-1-0-mi-a1-t3769702
With that i get the most Battery life out. About 2 Day´s without charging and mostly reading News, Texting with Whats App, and Listening much Music.
So not much intensive and no Gaming.
Last Charge was before 16 hours and 5 Days are left, because i do nothing with the Device =P
Click to expand...
Click to collapse
what's your rom and sot?

TioCareca said:
what's your rom and sot?
Click to expand...
Click to collapse
Android Pie and this why he ask what Kernel are good for this one and you only can use Pie with Treble .
But back to SOT it is now 54min. Last charge was 41 hours ago and i have left about 1 Day and 17 hours :fingers-crossed:
So next charge maybe at least 20% in the next evening.

My personal best from now on is eXtreme! Been using Moun on Oreo and on Pie, after using eXtreme for few days, difference was quite noticeable so imho eXtreme is the best kernel for balanced/battery life when tuned properly!

marko.dnb said:
My personal best from now on is eXtreme! Been using Moun on Oreo and on Pie, after using eXtreme for few days, difference was quite noticeable so imho eXtreme is the best kernel for balanced/battery life when tuned properly!
Click to expand...
Click to collapse
What did you use to tune eXtreme and what settings do you have? I'm really curious!

SystemDoctor said:
What did you use to tune eXtreme and what settings do you have? I'm really curious!
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Click to collapse
Oh, I'm currently on 8.1 Liquid Remix ROM and honestly don't remember what exactly I tweaked. I've used Kernel Adiutor, changed few thing regarding CPU, disabled Fsync, enabled one CPU when screen is off, Schedule workqueues on awake CPUs, that much I can remember. I am not heavy user, just listening music on Youtube Vanced app, using social media apps, browsing the web with Brave etc... Getting 2 days without charge with 5-6hrs of sot and about 10% battery left.
Right now I didn't change anything on Liquid Remix and battery life is still amazing compared to Moun or Mint kernels. eXtreme just gives great results without tweaking anything