The Dual-Slot Charger for SJ8 Series Battery from SJCAM allows you to simultaneously charge two SJCAM SJ8 lithium-ion battery packs. It can be powered by either a micro-USB or mini-USB port, and it includes a micro-USB cable for powering the device from virtually any USB power source. A red LED indicator shows when the battery is charging, and a green LED indicates when your battery is charged.
