Kebo 2pcs Batteries with Charger for Sj4000 Sj5000 Sj6000 1080p Action Sports Helmet Bicycle Waterproof 2.0" LCD Camera Hd Wifi DVR CAM Dv Video Camcorder Model: SJ4000/SJ5000/SJ6000 Charger 3.7V Li-ion Battery 900MAh 3.3Wh Input: AC100-240V 50/60Hz Output: DC5.0V---1A Compatible: SJ4000 /SJ5000/SJ6000 Action Camcorder Camera DVR