More Power for More Video: Each1400mAh battery offers you more power to shoot more videos; charge inside the camera or with 2.1A input charger to maximize charging efficiency
3 Ways to Charge: Can be charged by wall, car, and power bank charging for added convenience.
Fully Compatibility: Made to the exact specification of YI AZ16-1 battery, compatible with YI 4K/4K+ action camera
Charge 3 Batteries at the Same Time: Innovative design allowing for charging 3 or 2 batteries at the same time and 3 independent Smart LED light indicated RED when charging and GREEN when complete
100% Safety Guarantee: Features four layers of protection (over-charging, short-circuit, high-temperature, and surge protection) with a high-quality, fire-resistant construction