I just got a droid incredible and I'm looking for a extended battery. How is the seido 1750 is there much of a difference? Or has any one bought the htc 2150 with the extended case they sell? Is it cut perfect to fit the extended battery or not? I'm also looking into the 3500 battery that gorilla gadgets sells, has any one tried this? I know that they sell silicon covers the 3500 gorilla battery on ebay. Im gonna be doing alot of gaming, texting and web browsing will seido 1750 will handle a whole day or not.