User manual GoPro Dual USB Battery Charger for GoPro HERO3/HERO3 AHBBP-301 | PDF-MANUALS.com
How To Charge The Camera Battery
Opteka Rugged 6000mAh Power Bank for GoPro Hero4 with Dual AHDBT-401 Battery Charger and USB 5V-2.1A for Smart Phones, Tablets and Action Cameras - Walmart.com