DSTE&reg; 2x AHDBT-302 Battery + DC137 Travel and Car Charger Adapter for Gopro HD Hero3 Hero3+ Camera Battery Type : Li-ion Battery Capacity : 6.0Wh/1600mAh Output Voltage : DC 4.2V (max)/ DC 3.6V (mean) Info Function for Life Indication High Capacity for Stamina