Originally Posted by wqt0926
I have this issue that my 3G mobile signal drunk a ll the juice of my battery.
I tried every rom including the latest Android L preview. With every rom I could only survive only 3 hrs of screen time. If I leave it completely not using. The standby time is still within 8 hrs. I used the fastboot to reflash the factory image and replaced the radio version but it didn't help. A brand new battery was also replaced.
I believe it is the modem problem because if I turn on the airplane mode, the battery works great even with wifi on.
That sounds about right for the Nexus 4, thats what I have been getting on mine since I got it. A custom kernel helps the most with battery, but don't expect huge gains
PHONES: iPhone 3GS (Retired, Jailbroken, iDroid, overclocked to 800MHz) -> Motorola Atrix 4G (Shattered, CM10, Faux kernel @ 1.45 ghz overclocked) -> Google/LG Nexus 4 16GB (Backup Phone, L Preview) -> Google/LG Nexus 5 32GB (Primary Phone, L Preview)
TABLETS: Sony Tablet S (Retired, rooted 4.0.3), Surface Pro 2 128GB (Current, W8.1)