Dunno why people are always looking to load the latest leak before even trying what it came with.
Because my battery life sucks enough that I am panicking about my charger being at home while I am at work today, and I am desperate enough to try anything that might tweek it, including other OS systems that members are claiming has improved their battery life. I have been away from my charger for four hours and am done to 59 percent battery life with light usage.