Xiaomi Mi Power Bank 3 Pro 20000mAh Black VXN4254GL

The perfect carry-on for flights] Keep phones tablets cameras and electronic devices powered on travels with the massive 20000mAh Mi Power Bank. Its premium lithium-ion polymer batteries supplied by Panasonic/LG have energy densities of up to 728Wh/L. Charge two devices at once with dual USB ports..
Rapid charging with 44% speed increase] The new Texas Instruments control chip in each 20000mAh Mi Power Bank supports rapid charging. Compatible with 5V/2A, 9V/2A and 12V/1.5A charging the power bank takes just 3 hours to charge 11000mAh and 7 hours to charge fully 3- that's 44% faster than two 10000mAh Mi Power Banks combined. It maximises time on-the-go so you spend less downtime on charging.
18% lighter] At just 338g the 20000mAh Mi Power Bank is 414g lighter than two 10000mAh Mi Power Banks combined.
5.1V/3.6A Dual USB output] Enter a whole new level of high-speed of charging with dual USB ports with up to 5.1V/3.6A output. Not only is the output significantly larger than ordinary chargers, 20000mAh Mi Power Bank also automatically adjusts output level based on the connected device. It is compatible with smartphones and tablets from Mi 4 Apple, Samsung, HTC Google and BlackBerry as well as a variety of digital cameras and handheld gaming devices.