Hi, I updated my V711 to jellybean and rooted using iiDiabolusZz 's guide. It works great but my battery sucks. I am getting only about 4 hours of battery life reading a book with wifi off and about 50% brightness or less. Web browsing or games/videos suck down the battery in no time, maybe an hour or so. Also, the battery takes forever to charge, about 3-4 hours in a home 110v ac wall socket. After JB I tried using the "battery calibration" app. Didn't notice a difference. I also tried Juice defender. And although it had some neat features, my battery is still running out way to quickly. Any ideas? Thanks.