http://www.amazon.com/gp/product/B004K5ACMM Just had delivered this extended battery I picked up off Amazon. Unpacked last night, charged it up during night. It is now 24hrs later and i'm at 55% battery life. I used this phone the same as normal and even used the gps today for roughly an hour for added stress test. I must say i'm impressed for only $20. If I had my old original battery, I'd would have charged it half way through my work day and probably be under 55% right now. I'm excited I can go a whole work day without worrying about my usb charging cord. the case is sleek and the bulk is not overwhelming either. It feels about as bulky when I had a body glove case on my original. Good trade off if you ask me. Highly recommend if you are sick of charging your phone at work like me.