This 20,000 mAh / 72 Watt Hour battery will power most laptops, MacBooks (with optional adapter), tablets, smartphones and digital cameras.
Capacity: 20,000mAh, 72 Watt Hours, Output: 5V/2A USB, and 12V/4A, 16V/3.5A, 19V/3A
Input: 14-20V, 1.2A
Battery Type: Li-Polymer
Protection: Short Circuit, Over Charge, Over Discharge, Over Current, Over Temperature
Size and Weight: 1.23 pounds (558g), 18.5cm x 12.5cm x 1.6cm