$16 with coupon for G1 5000mAh Power Bank Dual Battery Charger  –  BLACK from GearBest

USB Port / Rubber Armour / for GoPro HERO4 / Smartphone / Tablet / Action Camera

Description:
Built to be a universal power station as well as a GoPro HERO4 battery charger, the G1 5000mAh rechargeable power bank lets you charge up to two HERO4 batteries ( not included ) at the same time and also comes with a USB port to simultaneously charge your phone or tablet. Or if you prefer, you can charge your GoPro without removing your battery and plug it directly into the power bank’s USB port. 5V / 2.1A output voltage and current can get your batteries charged up quickly. What is more, the G1 is equipped with built-in power protection circuitry to safeguard your valuable devices from over voltage, over current and short circuit risk. The water-resistant rubber case and metal carabiner key chain clip also make it perfect for all your backup power needs.

Main Features:
Dual battery charger, can charge two GoPro HERO4 batteries at the same time
Can be used as 5000mAh power bank, compatible with GoPro HERO4, Android devices, iOS devices
Rubber protection housing, water resistant
Input: 5V / 1A ( max. )
Output: 5V / 2.1A ( max. )
Charged via USB cable ( 42cm )