Power Bank Mi from Chinese manufacturer will be able to charge average smartphone up to 8 times.
The device has an impressive capacity of 20,000 mAh with two USB ports and a microUSB input which will allow us to charge up to two devices at the same time.
Very light PowerBank is also equipped with two LED that will notify us about devices charge level, in addition to all of that Xiaomi has applied fast charging feature, which producer's latest smartphones are using.
Price of portable charger is 149 yuan, and so far is only available in China.