I've used the standard battery, 1750 Sedico and now I have gotten the 3500ma Seidco . I have to say the 1750 was NOT much better than the one that came with the Incredible but the GOOD news is the Sedico 3500ma can acutally last me a full day even with decent usage !!!! It is very nice never having to worry about carry the charger around anymore. It definitely worth it so I would recommend this to any other Incredible user.