DSTE 2x AHDBT-002 Battery + DC121 Travel and Car Charger Adapter for GoPro Hero1 Hero2 Battery Type: Li-ion DC 4.2V(max) DC 3.6V(mean) Battery Capacity : 5.9Wh/1600mAh Info Function for Life Indication A 12V Car Lighter Adapter Convenient for Journey Travel Charger Input: AC 100-240V 50/60Hz Output: 4.2V 0.6A Full coded version, show battery level in camera screen. No memory effect, can be charged or dischargered at anytime. Perform as good or better than the top branded batteries on the market. Fold-out AC prongs, compact and portable design, easy to carry. Comes with a 12V Car Lighter Adapter, enables you to charge easily when outside. Built with smart technology that protects against short circuiting, over-charging and over-heating.