mophie 4061_PWR-BOOST-20.8K-BLK Power Boost XXL Universal External Battery - 8 Charges (20, 800mAh) - Black
Brand: mophie
Color: Black
Rechargeable 20, 800 Mah battery extends your battery by 8X giving you up to 100 hours of extra battery
Two high-output USB charging ports with a total output of 4.2A enables you to quickly charge two power-hungry device simultaneously.
Led power indicator displays battery levels and charge status. Know before you go.
Triple-tested battery ensures peak performance and safe operation