Powerextra 2 Pack Replacemet Canon BP-819 Battery and Charger for Canon VIXIA HF10, HF11, HF20, HF21, HF100, HF200, HF G10, HF M30, HF M31, HF M32, HF M40, HF M41, HF M300, HF M400 Canon BP-819/BP-820-M Battery Pack Rechargeable Li-ion battery for Canon BP-819/BP-820-M Voltage: 7.4volts; Capacity: 2200mAh Products are CE certified, tested by manufacturer to match or exceed specification Products come with our Powerextra is 30 days money back ,and 24 Hours friendly customer service!