.. 2 Replacement Nikon EN-EL3a / EN-EL3 Batteries and Mini Battery Charger for Nikon D100, D50, D70, D70s Digital SLR Cameras 2 Pack Replacement Batteries and Charger Kit for Canon BP-511/BP-511A , Advantage: This replacement battery and charger perfectly matches your original Canon BP-511 battery and charger. This Replacement Battery is designed for Canon BP-511 Camera, it is a kind of Li-ion recharageable battery, you can carry it anywhere anytime, very convenient to use. And it has no memory effect. Can be charged or discharged as needed without loss of capacity. The functions are the same as the OEM battery