Have you ever gotten any annoyance about insufficient power supply for timely shooting in the car? Why not choose our JUSTONE J054 1300mAh Battery + Dual Slot Charger + Power Cable for GoPro Hero 3/3 + for standby purpose? The dual slot charger pack allows you to charge two batteries at the same time efficiently. Applicable for GoPro Hero 3/3 +，the setmakes it a breeze to keep your device working continuously and smoothly without any doubt. A perfect pack for on-the-go use!                                    Features             Guarantee secure and timely power supply<br> Compact， little space-occupied， portable and lightweight， will not affect the beauty of your stylish car<br> Support charging for your treasured GoPro Hero 3/3 +<br> A safe and quick way for standby application and emergency<br> Bring you efficient charging in the car <br>                                                            Specifications             Brand     JUSTONE     <br> Model     J054     <br> Color     Black     <br> Material     ABS     <br> Quantity     1 Set     <br> Compatible Models     GoPro Hero 3 ， GoPro Hero 3+     <br> Output Current     800mA     <br> Output Voltage     4.2V     <br> Input Current     2A     <br> Power Adapter     Without Power Adapter     <br> Input Voltage     5V    <br> Dimensions     (1.69 x 1.26 x 0.91)" / (4.3 x 3.2 x 2.3)cm (L x W x H)    <br> Weight     0.99oz / 28g                   <br>                                                             Package Includes            1 x Charger<br>1 x USB Cable (90cm)<br>1 x Batteries (1300mAh)<br>