Canon VIXIA HF R40 Camcorder Battery Ultra High Capacity (2900 mAh 3.6V) - Replacement for the Canon BP727 Battery and Charger - Fully Decoded Replacement battery for the Canon BP-727 - with Charger, Lithium-Ion (Li-ion) 3.7V (2900mAh) This Synergy Digital battery is fully compatible with the original Canon BP-727 - with Charger Battery. 100% compatible with your OEM battery - 3 year warranty. Made with high quality Japanese cells. Synergy Digital is a Registered Trademark