Samsung S6 Battery Case Charge your phone on the go! Switch button on and off easily when needing power Light and Easy to Use Fits phone perfectly and provides excellent protection Also has a Clip which can be used as a stand Battery Capacity: 4200mAh Input: DC 5V / 1A (max) Output: DC 5V / 1A (max) Self-charging time: 3-4hours Talk Time: Up to 8 hours on 3G, up to 16 hours on 2G Internet Use: Up to 7 hours on 3G, up to 11 hours on Wi-Fi Audio Playback: Up to 44 hours Video Playback: Up to 11 hours Product size (mm): 140 * 65.7 * 16.5 mm Product Weight (g): 84g Working temperature-10~40°C Storing temperature-20~50°C Cycle life: >500 times Samsung S6