SDNB11L Lithium-ion Rechargeable Battery - Ultra High Capacity (3.7V 900 mAh) - Replacement for the Canon NB-11L Camera Battery Replacement battery for the Canon NB-11L, Lithium-Ion (Li-ion) 3.7V (900mAh) This Synergy Digital battery is fully compatible with the original Canon NB-11L Battery. 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark