Although Xiaomi has been committed on creating a wide range of affordable smartphones, along with other several gadgets such as smart-air conditioners, bedside lamps, air purifiers, among others, the Chinese tech firm has launched a number of external battery packs, one being the 20,000mAh Mi Power Bank. Now, the said smartphone accessory was upgraded into a newer version that supports Qualcomm’s Quick Charge 3.0 technology.