SDBP535 Lithium-Ion Battery - Rechargeable Ultra High Capacity (7.4V 4200 mAh) - Replacement For Canon BP-535 Battery For Canon Optura, Optura Pi, Optura Xi, Optura 10, 20, 100MC, 200MC, ZR-20, ZR-25MC, ZR-30MC, ZR-40, ZR-45MC, ZR-50MC, ZR-60, ZR-65MC, Replacement battery for the Canon BP535, Lithium-Ion (Li-ion) 7.4V (4200mAh) This Synergy Digital battery is fully compatible with the original Canon BP535 Battery. 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark