 "Camera & Camcorder Accessories | Quill.com"
"Compatibility: Models Nikon EN-EL10, LI-42B, Fuji NP-45, Casio NP-80, NP-82, Kodak KLIC-7006 and MoreBlackUltra compact camera battery charger" 
 "GoPro Dual - battery charger USB" " GoPro USB AHBBP301 Digital Camera Accessories CDWG.com
"Conveniently charge two GoPro Li-ion batteries simultaneously with the dual battery charger. Featuring USB compatibility, you can power it with most standard USB chargers, the GoPro wall or auto charger or a computer. Dual LED indicator lights display the charging status of both batteries: in process (amber) and fully charged (green)." 