I thought so, I've been using the native task killer that's in my stock since day one, along with tweeked smart actions, 3g only and with medium use can go 16 hrs or better. I have no battery life issues and am very pleased with it. IMO I had to constantly swap kernels around on my Og droid1 to even come remotely close to this. I'm happy with my Razrs battery life. Sent from my Updated and Rooted Razr sliced thin!