samsunginstinct.com
samsunginstinct.com gives you more info then the nowisgood.com site by sprint, the samsung lets you know what all get in the box and such, which i was kinda curious about especially w/ the 2 batteries, wasnt sure if you got two chargers one for the phone and another for just the battery, or if the battery came w/ a DC input and you only got one charger in that scenario, but that has now been clarified.