Our ST-177 Extended Battery for Gopro Hero 3+ is designed specifically for your GoPro camera， providing safe and stable power supply. Made with high-grade material and fine workmanship， it is reliable and durable for long-term use. Our battery is equipped with protective circuits， guarding the battery against over-circuit and over-voltage damage. Advanced cores allow for quick charging and extended battery life. It is definitely an ideal backup power source you can count on. So， what are you waiting for? Don’t hesitate to get one now!                                    Features             Provide safe and stable power supply to GoPro Hero 3+<br> Made with high-grade material and fine workmanship， durable for long-term use<br> Equipped with protective circuits to prevent over-circuit and over-voltage damage<br> Advanced cores allow for quick charging and extended battery life<br> Ideal backup power source you can count on<br> Lightweight， easy to carry <br>                                                            Specifications             Model     ST-177    <br> Color     Black    <br> Dimensions     (2.36 x 1.61 x 0.98)" / (6 x 4.1 x 2.5)cm (L x W x H)    <br> Weight     2.04oz / 58g    <br> Compatible with     Gopro Hero 3+    <br> Working Time     4h     <br>                                                             Package Includes            1 x ST-177 Extended Battery for Gopro Hero 3+<br>1 x Battery Cover<br>1 x USB Cable<br>