Xiaomi Zmi Power Bank Aura QB822 20000 (QB822)

Large information display

For Xiaomi, many external batteries are produced by Zmi. This model was no exception. The battery is hidden in a case made of soft-touch plastic that is pleasant to the touch and does not slip in your hands. At the top there is a rather large and simple digital indicator that informs about the degree of charge of the device.

Support for various types of fast charging

At the top end there are 4 USB ports (two regular USB and two USB-C) for recharging gadgets and the battery itself. One of the ports delivers a current of 3 A, the rest work in 2.4 A mode. It's great that in addition to the standard Quick Charge, the battery supports fast charging formats from Samsung and Huawei. ZMI Aura also supports low current charging to safely replenish the energy of devices such as fitness trackers and wireless headphones.

Increased capacity

The battery has a claimed capacity of 20,000 mAh. But due to the fact that part of the charge is spent on voltage conversion, and another part is lost during heating or operation at low temperatures, the actual effective capacity is about 13,000 mAh. It is enough, for example, for two full charges of the Samsung Galaxy Tab 10.1 2019 tablet with a 6150 mAh battery or for almost 3 charge cycles of Redmi Note 8 Pro with a 4500 mAh battery.

Mark Corps

In general, Zmi Power Bank Aura has no weaknesses. The disadvantages can be written only easily soiled case. However, given that this is not a smartphone that you will pick up 10 times a day, you can easily turn a blind eye to this. And so, in terms of price, capacity and functionality, one of the most attractive models on the market is obtained.