TELESIN 1200mah Replacement Battery 2 Pack + 3-channel Multi-function Smart Charger kits for Hero 4 Black / Silver ,2 Slot Battery Charging Port + Smart Remote Control Charging Port STRONG COMPATIBILITY: Multi--functional Charger is designed for GoPro Hero 2018, Hero 6, Hero 5 Black and Hero 4 Black/Silver 3 SLOTS DESIGN: This charger contains 2 slots for 2 batteries and 1 slot for original GoPro remote control allowing 2ps batteries and a remote control at the same time LED INDICATORS: ISmart LED indicator shows the charging status-Smart LED light indicated RED when charging and GREEN when complete. HIGH QUALITY BATTERY: Each battery rated at 4.4V, 1220mAh. Built-in Grade A Battery Core to ensure high performance and long battery life. Automatic constant current control, prevents battery from overcharging, short circuit, and electronic shock. Includes 2 lithium-ion batteries(for GoPro Hero 2018, Hero 6/5 Black) and a multi-functional charger, Micro USB Charging Cable