SDBP780S Lithium-Ion Battery - Rechargeable Ultra High Capacity (3.7V 850 mAh) - Replacement for Kyocera BP-780S Battery Replacement battery for the Kyocera BP-780S, Lithium-Ion (Li-ion) 3.7V (850mAh) 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark