Kapaxen Two Intelligent Batteries + Charger Kit for Canon BP-727 and VIXIA HF R40 R42 R400 M50 M500 M52 R30 R300 R32 Full HD Camcorders Battery Capacity: 2800mAh (Rechargeable) Intelligent Batteries Showing Remaining Recording Time Charger Input: AC 100V-240V; Auto DC 12V Li-Ion Batteries without Memory Effect Lasts 2.5 to 4.5 Hours with A Full Load