Wasabi Power Battery for Nikon EN-EL20, Nikon EN-EL20a Rechargeable lithium-ion battery for Nikon EN-EL20/EN-EL20a and Blackmagic Pocket Cinema Camera Rated at 7.2V and 1200mAh for a longer run time than the original battery Premium Japanese cells for longer battery life with no memory effect Compatible with the original Nikon original MH-27 charger Includes battery with 3-year manufacturer warranty