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Cyanogenmod 11 - reduced battery life on Galaxy S4

nj4ck
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Hey forum, I used the Cyanogenmod installer to install CM11 on my GT-I9505 yesterday. Just came back from my first day at work with it and I'm loving it, apart from the fact that my battery drains significantly faster than on the stock ROM.

 

I'm not sure what to do about this, since I am otherwise really enjoying the experience and would absolutely hate to have to go back to stock. 

Are there any known tricks you can use to improve battery life? I've done all the obvious stuff, like disable GPS when not needed, underclock CPU to 1.2GHz and set the brightness to auto. But I was wondering, could setting the limit of background processes in developer options to 1 or 2 help? I'm not sure exactly what this does and how it effects performance, but could it help?

 

Also, if there are any custom kernels that are known to work with CM11 and on the SGS4 (does the phone even matter with kernels? I'm a complete noob to this) and improve battery life, I'd love to know.

      

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Same with me but with a Nexus 7 2013 4G/LTE. :angry:

Now i'm fine with stock android rom. :(

System 1: Thermaltake Element Q - Thermaltake 220W SFX - Asus AT5IONT-I mini-ITX - Intel® Atom™ D525 onboard 1.8GHz Dual-Core HT - Integrated NVIDIA® ION™ - 2x 2GB Kingston DDR3 - Samsung 120GB 840 Series - Scythe Kama Rack 3.5 - Asus DVD-RW

System 2: Thermaltake Element Q - Thermaltake 220W SFX - Asus E2KM1I-DELUXE mini-ITX - AMD E2-2000 onboard 1.75GHz Dual-Core - Integrated AMD® Radeon HD 7340 - 2x 4GB Kingston DDR3 - Samsung 120GB 840 Series - Scythe Kama Rack 3.5 - Asus DVD-RW

Building: Bitfenix Prodigy Black - Corsair AX860i - Asus Maximus VII Impact - Corsair Hydro Series H100i - Intel® Core™ i7 4790K - Asus Matrix Platinum GTX 980 4GB - Corsair 16GB Dominator Platinum 2x 8GB DDR3 2400MHz CL10 - Samsung 1TB EVO 840 Series

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Same with me but with a Nexus 7 2013 4G/LTE. :angry:

Now i'm fine with stock android rom. :(

I flashed the google play edition rom before, it was even worse for me :( I f&*@!ing hate touchwiz, but the stock ROM is definitely way easier on the battery than everything else I've tried...

      

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some argue about this working or not, but in my case (galaxy s2, CM11) I had the same version installed for a few days and if that didn't help I downloaded: Battery Calibration from the google play store and followed the instructions. It's been a lot better since doing that!

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some argue about this working or not, but in my case (galaxy s2, CM11) I had the same version installed for a few days and if that didn't help I downloaded: Battery Calibration from the google play store and followed the instructions. It's been a lot better since doing that!

this is really the only thing I can recommend. Typically you should get BETTER battery-life from using a lighter OS.

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