Xiaomi Mi power bank 20000mAh is capable to charge the Mi4 smartphone 4.5 times, iPhone 6 as much as 7 times, and the new Macbook - 1.2 times -that's impressive! The powerbank has a rectangular shape with rounded edges, on its upper face there are two USB ports, a micro USB and four LEDs indicating the battery charge status The main feature of Xiaomi Mi Powerbank is the fast charge technology DC 5V / 2A 9V / 2A 12V / 1.5A. eliable microchip protection. Nine protective layers produced by Texas Instruments Adapted high-speed USB-chips and charge / discharge chips by Texas Instruments company. The Mi Power Bank accumulator not only provides nine protective layers, but also increases the efficiency of the device operation. To protect the lithium-ion batteries from overcharging and total discharge in Mi Power Bank there were used Japanese technologies. Xiaomi Mi Powerbank 20000mAh will be an excellent solution for those who need to charge a lot of gadgets every day.