Dot.Foto AHDBT-401 Dual USB Battery Charger for GoPro HERO4 Black/Silver Edition
Compatible with GoPro Hero 4. Inbuilt into each Dot.Foto battery is a safety system which gives short circuit protection and prevents the battery from overheating. [Input] Mini/Micro USB 5V 2A | [Output] 4.35v ~ Current: 800mA 2.