Xiaomi has launched its huge Mi Power Bank 3 30,000mAh which keeps more backup power on the go. This is effectively the higher-capacity variant of the 20,000mAh Mi Power Bank 3 that allows easy 2-way charging. It is priced at CNY 169 (about RM101) in China and comes with 2x USB-A, 1x USB-C, and 1x microUSB port. The device USB-C …