SDNP900 Lithium-Ion Battery - Rechargeable Ultra High Capacity (3.7V 900 mAh) - Replacement for Minolta NP-900 Battery for Minolta Dimage E40, E50, Norcent DC-520 & Yashica EZ4033 Digital Cameras Replacement battery for the Minolta NP900, Lithium-Ion (Li-ion) 3.7V (900mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark