Best Kernel and Rom to Save Battery on Galaxy Nexus

There is no best combination for best battery life on galaxy nexus people will tell you, but I experienced something which is best for me and hopefully will be best for you also.
I tried all kind of roms and kernels for my galaxy nexus you could imagine until this date, but what really worked for me when it comes to battery saving specially on jelly bean, this was my best.

• for the kernel I used Trinity Kernel
• and for Jelly bean this rom Androidme

But seriously I didn't like the color preset of Trinity kernel, so you can follow this guide on how to change your  galaxy nexus color preset (noob friendly)