The most powerful and compact battery pack created by uNu so far. Enormous huge capacity of 17000mAh charges the iPhone almost 8 times, large-capacity phones like the Galaxy S4 4-5 times or more than 100% charge any iPads. Ultra-fast charging dual USB outputs (5V / 2A and 5V / 1A) allow for simultaneous charging of your iPad, iPhone, Android, and more at the full speed. Thru Charge Technology is deployed to charge your smartphone and battery pack serially from an external USB power source when connected together. Box contents: uNu Enerpak Maximum External Battery, Micro USB cable, Manual, 1 Year Manufacturer Warranty Enormous huge capacity of 17000mAh charges the iPhone almost 8 times, large-capacity phones like the Galaxy S4 4-5 times or more than 100% charge any iPads. Ultra-fast charging dual USB outputs (5V / 2A and 5V / 1A) allow for simultaneous charging of your iPad, iPhone, Android, and more at the full speed. Thru Charge Technology is deployed to charge your smartphone and battery pack serially from an external USB power source when connected together. Box contents: uNu Enerpak Maximum External Battery, Micro USB cable, Manual, 1 Year Manufacturer Warranty About uNu Enerpak Maximum: Experience the Maximum charging technology. This 17,000mAh external battery can provide enough power to replenish almost any of your favorite hand-held devices - multiple times. Featuring dual-charging ports, a built-in flashlight and one of the most powerful internal batteries ever, the Maximum is the perfect answer for all your power needs. Tech Specs: -Add 700~800% to smartphones, 400~500% to large screen phones, 100%~150% to tablets -Input: 5V / 1.5A (max) -Output: 5V/1A + 5V/2.1A -Size: 6.95 x 2.5 x 0.8 inch; Weight: 10.2 ounce -Box Content: Enerpak Maximum, MicroUSB to USB charging Cable, 1 Year Warranty