Progo&reg; 3 Channel 2 in 1 USB Charger for GoPro Hero 4, Gopro Hero 3 Batteires. Charges GoPro AHDBT-401,GoPro AHDBT-201, GoPro AHDBT-301, GoPro AHDBT-302 3 CHANNEL CHARGER allows charging 1 - 3 GoPro batteries. SMART LED indicates when charging is complete and prevents battery from overcharging. 2-IN-1 DESIGN, charge both batteries for GoPro HERO 3 and HERO 4 CHARGES GoPro AHDBT-401,GoPro AHDBT-201, GoPro AHDBT-301, GoPro AHDBT-302 Includes dual USB charger with USB cord. USB AC Adpater not included.