Yep, as I said before, people getting only 4-8 hours battery life are doing something wrong for sure. They dont know how to run their phone correctly and leave unnecessary things on or running. I have no task killer and easily get 10-12 hours with moderate use on the stock battery. Here is what its like with my 1800mah battery in. Not running 4G, BT or GPS but wifi has been off and on when I needed. I also dont have my twitter, facebook, friend stream and all that other stuff updating every hour or two. Changed it to once a day and I can always manually update if I want. 11hrs 35mins off the charger with moderate use and I am still at 63% 