how much time does it take to charge mi power bank 20000mah?
Charging in the fast lane 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.