1600mAh Power Battery Kit (2-Pack) and Dual Charger USB for GoPro HERO3 HERO3+ AHDBT-201, AHDBT-301, AHDBT-302, AHBBP-301 Mini USB dual charger can fully charge 1 or 2 batteries at a time within a couple hours (can plug into any Apple or Andriod USB phone charging base) Batteries and chargers are fully compatible with the GoPro Hero3 and Hero3+ cameras and accessories Smart LED light indicated RED when charging and GREEN when complete Includes 2 batteries, dual USB charger, and USB cord.