I have a Samsung Galaxy Nexus. Everything is stock at the moment and it's not rooted. I am a heavy Twitter user and this tends to drain my battery really quickly. My phone has Jelly Bean and the OS is up to date. I wanted to know what the kernel would be best for me to use on my phone to optimize my battery, as right now it gives me hardly 5 to 7 hours. I mean I have a full charge and by the time I walk out of the house 5% has gone. Any suggestions? Thanks in advance!