I just bought the 3500 mah Seidio battery and bang problem solved I don't have to run around lookin for a car or. Plug to rejuice my EGO 4G , I may be a nanite runnin a stock phone but I guess that means I don't have the need to over think things! If the small battery don't last , get a BIG battery! I got mine from Amazon for 63$ I am not gonna put up stats and minutes and seconds and %'s but hey if u really want to do what u want for as long as u want on the Best phone on the market get the Damn battery that can keep up with it!