Sherpa 15 Power Bank Micro/Lightning Phone recharger with built-in cables for ultimate convenience while charging on the go. Features 3,870 mAh and 2.1 USB output ideal for charging phones, with built in micro USB and Lightning cables. Sherpa 15 Highlights Talk, Text, and Share More Up to one full recharge on most phones. Sleek, Durable Aluminum Body Slim aluminum body, handheld design, and built-in cables for ultimate convenience. Thin, Complete Package USB rechargeable and travel ready. Built-in cables mean never searching for a charging cord. Two Ways to Charge the Sherpa 15 Recharge the Sherpa 15 from the sun by connecting a compatible solar panel in about 4-8 hours The Sherpa 15 can be recharged from a wall charger in about 2.5 hours. What Can the Sherpa 15 Power? The Sherpa 15 is great for charging your smartphone and other smaller gear. Smartphone 1-2 Recharges Headlamp 2-4 Recharges POV Camera 2-3 Recharges Charge Times     Wall charger: 2.5 hrs     Nomad 7 Plus: 4-8 hrs full sun Ports     Micro USB port (input): 5V, up to 2.1A (10W max)     Micro USB plug (output): 5V, up to 2.1A (10W max), regulated     Lightning plug (output): 5V, up to 2.1A (10W max), regulated Battery Details     Battery: Li-ion Polymer, flat pouch     Capacity: 3,870mAh, 14.7Wh General     Weight:(130g)     Dimensions:(12.7 x 6.85 x 1 cm)