mine came with it's own Lithium Ion rechargable. Upside... good quality battery. Downside... Proprietary battery $$.The first camera I was concidering was a Nikon because they had the shortest lag-time (button pushed to picture captured). I was also concidering the Nikon SLR Digi because I could use the Nikon lenses I alread have. I just couldn't justify laying down that many bills for a tool that I don't use for a living.Ntro and no1, please don't fight, there's plenty to go around.