The Qumox Li-Ion battery suitable for Qumox SJ4000 and SJ4000 Wi-Fi. The battery is well protected shipped in a small carton. The lithium ion battery has a voltage of 3.7 volts at 900mAh. The external Qumox charger, allowing the battery in about 45 minutes to fully charge. When the battery is fully charged, then it stops for video recording through to 60-70 minutes. The battery is only suitable for Qumox SJ4000 and identical Action Cams. For Qumox F21 and GoPro this battery is not suitable.
