Save Battery by enabling Deep Sleep Mode by locking CPU to the lowest frequency.
#1 Battery Saving technique!
Just enable the CPU Hibernation Lock, then we will take care the rest.
How it works?
When the screen is OFF, it automatically locks CPU processor to lowest possible frequency. This ensures huge battery savings.
CPU "The brain of android" constantly computes many demanding tasks.
For Example: Updating widgets, updating apps, checking for software updates, etc. This computing power drains a lot of battery & is used when you do not need it. That's why CPU frequency need to be lowered when the screen is OFF.