Yes, but it has some impact on the battery, and it's not as fast as the original charge. The Xiaomi 80w and 30w can be compatible, the Xiaomi 80w and 30w use the same technology, but the power is increased, so it can be compatible.
As a leader in the field of fast charge, Xiaomi once launched 30W super flash charge technology in 2019, which can quickly \"revive\" mobile phones, and the earliest breakthrough in the endurance pain point of 5G mobile phones.