1. It can be used. Xiaomi's mobile power supply can automatically adjust the output voltage according to the charging device;
2. However, it should be noted that Apple's original data cable should be used. Some time ago, Apple's frequent accidents were mostly due to the use of inferior mobile power supplies and data cables produced by other manufacturers.
3. If there is a regular millet mobile power supply and Apple original data cable, you can rest assured to use.
Of course, it can be charged, and it should support fast charging.