Ive got a stock rooted uk moto x 4.4.4 kitkat with xposed, what is the best custom kernel to run for better battety life
unlockedYou're not going to be able to flash a kernel with a locked bootloader, which is what I'm guessing you have since you didn't mention it in your post.
Roms and kernels make very little difference in battery life.
Battery life depends on signal strength while on data, setup and usage. ?
What they said. Apps will also affect battery life due to wakelocks.Stock kernel if you are on a stock (or stock based) ROM.