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[Q] Stock battery life compared to custom roms

Hello,
i'm new on the Nexus S. I had a Milestone and tried pretty much every custom rom, as the Milestone stock rom was slow, unstable and outdated.
I read many times "great battery life" within the description of Nexus S custom roms (e.g. Codename).
BUT, is it better than the stock-kernel battery-life? And how much better (guess)?
I ask, because most of the Roms are overclocked and perhaps the "great battery life" is relative to those speed-optimized roms.
For me the speed of the stock rom is totally okay and it seems totally stable. I would only "custom-ize" it, if the battery life would be (significant) better – else: "Never change a running system!"
AK
p.s. Links are welcome, as i didn't find any comparison like this.

I have found stock GB rom was a battery hog. I tried a few roms but loved that CNA will pull all your apps from the market for you(I didn't have to download them all manually)
With a custom rom you can change more settings, you can change governors, you can change the cpu speeds and voltage. With deep idle sleep working your phone sips power when in your pocket. I like the Air Kernel,3.x with the scary setting, seems to use lower cpu frequencies more often.
you can find roms that are stripped down to next to nothing, these should give you better battery life then stock, to fully loaded roms that most likely will not give you better battery life.
I have my cpu set to 200 min and 1400 max running air kernel with the scary governor. scored around 2500 on Quadrant and battery last pretty good as when I just have the screen on, not doing much the cpu is running 200Mhz and the phone goes in to deep sleep right away.
try CPUspy and cool tool, CPUspy lets you see the states the cpu is using for a given time and cool tool can display cpu/power details in the top bar.

Through my ROM testing with ICS, most ROMs give very comparable battery life. Battery life relies very little on the ROM itself assuming there is no wakelock or similar issue which is because of the ROM, which in a good ROM there won't be. There may be some settings which are added or changed that have some effect, but likely nothing very major, especially in my experience.

Normally the bloatware is what drains battery with unused apps opening in the background.
Custom ROMs omit and give the option of certain bloatware.
Also some ROMs have great idle compared to stock.
But overall if u control ur mobile data, wifi, gps and sync then u can better or great battery life on any ROM just as long as its not a newer ROM that is still testing. And most custom ROMs have the pull down notifications that make it easier to control all of them.
I personally use SLIM ICS and its comes simple enough that u customize it.
Vs Nexus S 4G

[Q] Best rom + Kernel for battery life??

Hey, Just wondering what would you guys say is the best rom for + kernel for battery life that also isn't stupidly slow.. Oh and by battery life i don't mean like upkeep time i mean like basing it on screen on time like what roms can get 4+hours screen on time?
Cheers

stock rom 4.04

Oh and what kernel is better for Rascream rom Trinity or Matrix cause i don't really know much about rascream as i just started using it.

I'm able to squeeze over four hours of screen on time from most ROMs providing I don't reboot and minimise my modem usage. I'm currently using Pete Alfonso's Gingerbread kernel and Blandriid 2.3.7.
But I keep trying alternatives...

Yeah Atm i'm using latest Rascream with TEUV kernel and not sure atm but battery seems okay?

The biggest battery eater is the screen so try brainmaster's black cm9. It's about the only thing you can do apart from obviously keeping your screen brightness at minimum is put your phone in airplane mode when feasible. Nothing else will make much difference.

For GB i have to say, Oxygen 2.3.2 with Matr1x 11.0
As for ICS, i've yet to come across one, I do, however have fond memories of aosp+

To supplement bedalus' post: to base battery life on kernel+rom combination alone does not tell much of a story. I got the most out of my battery when I - used a pure black and static wallpaper, turned off auto brightness and manually tuned down to 10%-ish, kept apps and processes at a minimum (reduced app drawer to a single page, mostly stock). To reiterate, kernel+rom alone give few tangible differences when comparing battery life, from personal experience.

I use Matrix Kernel v19 and CyanogenMod v7. 24 hrs with light use, 12 hrs with heavy use.

used to use milestone 4 with air kernel.
use the latest version of both rom and kernel and set 200-1000.
you will see the difference and if you want to save more battery after following as above, then reply me.

I haven't really noticed a difference between ROMs. As stated a few posts above, the kernel and ROM themselves will only give a few minor boosts. Black vs white screens makes a world of difference. I use the inverted browser a lot and a majority of my apps tend to have dark themes which I personally prefer. Daily use, 3 or so hours of screen on time with the phone off the charger for 12-14 hours. It all varies on how I use my phone though on that particular day.

Best rom for battery life

Hello guys,
as for me the most annoying part of a smartphone is running out of battery when there is no chance to recharge, I want to collect your experieces with different roms concerning battery life.
WHich rom gave you the longest battery?
Cheers

There are many factors not only the ROM.
It's the kernel you flashed, it's the settings you have chosen... and at least it's your daily behavior with your phone....
Usually you have a better battery life with custom kernels...
HTC One S (4) | RootBox 4.2.2 | S-OFF

puep.puep said:
Hello guys,
as for me the most annoying part of a smartphone is running out of battery when there is no chance to recharge, I want to collect your experieces with different roms concerning battery life.
WHich rom gave you the longest battery?
Cheers
Click to expand...
Click to collapse
as it was answered
custom kernel with feature as ability to set minimum CPU frequency and probablly voltage control
and U'll have to try some of them in order to find out the wright one

Longest battery life i get with stock rom so far (around 20h with moderate usage)
for custom roms:
Best battery life gave me PAC-Man rom with bubbav4 kernel - which was almost like stock.
ViperOneS had the worst battery life for me.
just try some roms and kernels, it also depends on how you use your phone of course.

in my experience, 4.2.2 roms have the lowest battery life ~3.5 hours screen on + wifi on (active Web surfing) with auto brightness.
Viper rom 2.1 ~4 hours
aosp 4.1.2 (cm10) and viper 1.2.1 ~4.5
very rough numbers obviously so no one roast me. remember I'm talking about total screen on time as reported by the battery app.
The newer jb 4.2 roms are very popular and have a lot of great features, but if battery is your thing, try out some of the older android and sense roms.

unbenannt said:
Longest battery life i get with stock rom so far (around 20h with moderate usage)
for custom roms:
Best battery life gave me PAC-Man rom with bubbav4 kernel - which was almost like stock.
ViperOneS had the worst battery life for me.
just try some roms and kernels, it also depends on how you use your phone of course.
Click to expand...
Click to collapse
For me it was pretty much a tie between Liquid Smooth with Bubba Kernel(OC to 1890 for heavy periods, 1134 for light usage, and complete collapse of the CPU when the screen is off) And Viper One S with the Stock Kernel. Like everyone said though you'll experience wildly different numbers depending on what settings you use and how much

Viper has always had phenomenal battery life.

IntelligentAj said:
For me it was pretty much a tie between Liquid Smooth with Bubba Kernel(OC to 1890 for heavy periods, 1134 for light usage, and complete collapse of the CPU when the screen is off) And Viper One S with the Stock Kernel. Like everyone said though you'll experience wildly different numbers depending on what settings you use and how much
Click to expand...
Click to collapse
Complete collapse of Cpu when screen off? Is that pm sleep mode 1 or 0?

Thank you very much. Unfortunately my phone jack is broken so I cannot test your configs, will report after repair though.
Cheers

c19932 said:
Complete collapse of Cpu when screen off? Is that pm sleep mode 1 or 0?
Click to expand...
Click to collapse
There's a setting on through Android Tweaker that gives you the option to control how the phone deep sleeps basically
Sent from my HTC One S using xda app-developers app

OnePlus One CM11s VS CM12.1+ AK Kernel

Hello. So I am currently running an OPO on 5.1.1 with AK kernel and I get a solid 5:30 SoT with lots of restrictions (CPU frequency). My device is rooted with TWRP installed. I ask, is it worth reverting back to CM11 on 4.4.4? I'm looking for features and battery life mainly. I might change themes and kernels. But only on CyanogenMod ROM. If CM11s is the way to go, may a good kernel be recommended to go with it? Thanks for the help.

Well at this point 11S is pretty outdated, with CM13 already being out. CMOS12 is pretty good but getting a different CM12 or CM13 based ROM is best way to go in my eyes. I have tried going back to KK just to see what it is like and I couldn't use it because I had gotten used to how Lollipop and Marshmallow are. Also I don't think the increase in battery life is worth the loss of features with CM11S.

You should stay on cm12.1 and play with your kernel setting little bit!

I'd say give MahdiROM 2.9 a shot. It's CM11 and gives me great battery life, as well as being packed full of features. Even ran tests with play services forcing my phone to stay awake 100% of the time and can still push 5-7 hours SoT depending on usage. 7+ with that fixed up. ZaneZam's boeffla kernel builds for it work extremely well and I can honestly say I prefer it for CM11 even though I'm an avid AK user.

What about Boeffla Kernel? Is it better than AK?

snakexpert552 said:
What about Boeffla Kernel? Is it better than AK?
Click to expand...
Click to collapse
There is no better or best kernel. There is just a kernel that fits your preferences.

I can only say that at least with my personal usage, the battery life did not change a bit going from kitkat, over lollipop, to marshmallow.
6h SOT is the bare minimum I get on regular usage no matter what. I've seen 8h SOT on K, L and M.
Always CM11/12/12.1/13 with stock kernel and stock settings, no undervolting, underclocking, Greenify or other bull**** apps. Also I don't use apps which are known for drain like facebook.
Seeing threads like this, I often think that users drain the most battery by constantly looking for tweaks and updates to reduce battery consumption.
Alibi screenshots from an early unofficial cm13 build:
There is almost no drain over night, same on data only.

AcmE85 said:
I can only say that at least with my personal usage, the battery life did not change a bit going from kitkat, over lollipop, to marshmallow.
6h SOT is the bare minimum I get on regular usage no matter what. I've seen 8h SOT on K, L and M.
Always CM11/12/12.1/13 with stock kernel and stock settings, no undervolting, underclocking, Greenify or other bull**** apps. Also I don't use apps which are known for drain like facebook.
Seeing threads like this, I often think that users drain the most battery by constantly looking for tweaks and updates to reduce battery consumption.
Alibi screenshots from an early unofficial cm13 build:
There is almost no drain over night, same on data only.
Click to expand...
Click to collapse
Maybe your device got powerful battery and your app list isn't huge, otherwise most people struggle to get 6 hr sot on L & M. ?

AAB4K said:
Maybe your device got powerful battery and your app list isn't huge, otherwise most people struggle to get 6 hr sot on L & M. ��
Click to expand...
Click to collapse
Apps I use daily:
Pocket Casts
Naked Browser + Chrome (Internet)
Google+
Relay for Reddit
Press RSS Reader
Mi Manga Nu
WhatsApp
MX Player
YouTube
Phonograph (Music Player)
Oppo Camera
QuickPic
Titanium Backup Pro shows me 121 installed user apps.
No crap though
Google Sync is active all the time.

What is the good Custom ROM and kernel for 5+ SOT?

I used default stock ROM (6.0.1), RR (7.1.1), CM 12.1 (5.1.1) with squid kernel but still my battery don't get even 3 hrs SOT with greenify also. I mostly use it for facebook and whatsapp only. I cant afford a new phone due to this. Plz help me. TIA.

SanRak said:
I used default stock ROM (6.0.1), RR (7.1.1), CM 12.1 (5.1.1) with squid kernel but still my battery don't get even 3 hrs SOT with greenify also. I mostly use it for facebook and whatsapp only. I cant afford a new phone due to this. Plz help me. TIA.
Click to expand...
Click to collapse
No rom will give you that much of a increase, stock is the best battery in general but there is no way any tweaking will increase that significantly.
Sounds like you need to replace the battery...

uninsall the fb app.........use fb on chrome............fb is the mother of all battery sucker apps

Crimsongrey said:
uninsall the fb app.........use fb on chrome............fb is the mother of all battery sucker apps
Click to expand...
Click to collapse
Facebook Lite, way better than on mobile browser.

acejavelin said:
Facebook Lite, way better than on mobile browser.
Click to expand...
Click to collapse
Completely wrong

Crimsongrey said:
Completely wrong
Click to expand...
Click to collapse
That maybe your opinion, but I disagree... Facebook Lite with it's built in Messenger is essentially a specially written browser, uses far less memory than Chrome, removes ads from videos (in general there are less ads throughout) plus you can still get push notifications. I have been using it for months.
If I am "completely wrong" give me some proof. In fact, although the regular Facebook is not the best, it is hardly "mother of all battery sucker apps". It is a space and data hog, but it doesn't use battery any more than REAL hogs like Snapchat, Netflix, Amazon Shopping, SoundCloud, or Outlook, in fact if you do some testing it has less effect on battery than you likely think (granted 2-3 years ago this was different, FB used to be one of the worst offenders).
Regardless, the OP was looking for an app to increase SOT... unless you can lower the battery usage of the display, you are not going to see increases in the magnitude the OP is looking for, from 3 hours to 5 hours, or a 66% increase in SOT. No app change or ROM is going to make a change even close to that.

Crimsongrey said:
Completely wrong
Click to expand...
Click to collapse
Comments like that are hardly useful (or credible).
If you feel the need to make comments, please make them constructive and with some substance.

http://www.huffingtonpost.in/entry/facebook-iphone-battery-life_us_56b8b6c5e4b08069c7a7fc54
(It could boost your Android’s battery by as much as 20 percent,)
https://www.androidcentral.com/it-turns-out-uninstalling-facebook-android-pretty-great
(android central)
https://www.theguardian.com/technol...alling-facebook-app-saves-iphone-battery-life
https://www.reddit.com/r/Android/co...eeds_up_your_android/?st=j5c24vbs&sh=4c9b128f
there are too many on the web........

I agree with @ace Sir Facebook lite is good option .... Now u also have an option of Messanger lite
And also Battery Usage/SOT completely depends on ur usage OP .:angel:

SanRak said:
I used default stock ROM (6.0.1), RR (7.1.1), CM 12.1 (5.1.1) with squid kernel but still my battery don't get even 3 hrs SOT with greenify also. I mostly use it for facebook and whatsapp only. I cant afford a new phone due to this. Plz help me. TIA.
Click to expand...
Click to collapse
3 hours SOT with greenify is a little off. you need to watch for wakelocks. better battery stats or wakelock detector can be useful to you. and also, if you have greenified the apps that you use the most, it will reopen those apps everytime you open the app, that could do more harm than good. you can try shallow hibernation, or just install naptime and tweak the doze parameters using GeraldRudi's method and quit greenify for some days just to see if this improves.
Then again, your battery could be the culprit, that's always a possibility
about ROM's, every ROM has it's merits, but Motorola really knows how to optimize their ROM, so for now, I think stock ROM gives the best battery life, even if that is marginally better than custom ROMs.
Kernels: Stock moto kernel is very efficient, but you might get a little bit more battery life with squid kernel, it has a great governor that relies on voting mechanism, plus it's just perfectly undervolted to get you some extra battery. probably a 15-20% difference than the stock one.

1) Use AOSP-CAF based ROM like Tesla.
2) Flash squid or Firekernel
3) Reduce the Max Freq to 1152Mhz and Min to 200Mhz
4) Use IntelliPlug Hotplug (Turn off Touch Boost and set Screen off frequency to 400Mhz)
5) Install Force Doze app and add Facebook, WhatsApp and other Battery consuming app to blacklist (Remember you will not get notifications from those app if screen is off).
6) Don't charge too quickly, always charge to 100% and plug when it discharged to below 10% (Recommended to charge at night).
It will improve your overall battery backup and somehow SOT.
At last i am totally agree with @acejavelin Facebook Lite app is made for low memory devices so it consume less memory and also less Battery. Also it's fast and have almost every features.

The real problem here is the device is going on 2, maybe 3 years old... the battery is at it's limit and will need to be changed to get really good SOTs.
My Moto G 2015 used to get 5+ hours SOT easy... not it's barely 3.5... and this is a backup device, it has NOTHING installed in it at all but it was used regularly for 18 months. The battery is just not what it used to be and if I am going to continue to use it as a alternate device I will need to replace the battery. Like it or not, these devices were not designed for more than 2 years of service.

nikhilpal2705 said:
1) Use AOSP-CAF based ROM like Tesla.
2) Flash squid or Firekernel
3) Reduce the Max Freq to 1152Mhz and Min to 200Mhz
4) Use IntelliPlug Hotplug (Turn off Touch Boost and set Screen off frequency to 400Mhz)
5) Install Force Doze app and add Facebook, WhatsApp and other Battery consuming app to blacklist (Remember you will not get notifications from those app if screen is off).
6) Don't charge too quickly, always charge to 100% and plug when it discharged to below 10% (Recommended to charge at night).
It will improve your overall battery backup and somehow SOT.
At last i am totally agree with @acejavelin Facebook Lite app is made for low memory devices so it consume less memory and also less Battery. Also it's fast and have almost every features.
Click to expand...
Click to collapse
downclocking the cpu is kind of redundant and saves less power than what it takes. the reason why for some users min-max is a battery saving governor. Besides, the performence hit is greater than the battery gained which is not at all more than 2% probably.
you should not fully charge your battery. you can, but the best practice is to charge upto 80%. And anything bellow 25% is not good.
the issue is either wakelock or dying battery, no tweak is going to save him if the underlying issue is not fixed, moreover, doze is the most sophisticated solution to save battery till now, downclocking, hotplugs these are pointless unless one's usage is known to us. I'd suggest to have doze editor if you must have a doze interface.

You can use aosp caf osprey by Ahmed hady...it will give 6 hrs plus sot from moderate to normal use..