Up to three ONE X3 batteries can be charged simultaneously with the Insta360 Fast Charging Hub for ONE X3. An LED above each battery slot indicates whether the battery is charging, charging, or not charging due to a malfunction. Three batteries charge in approximately 110 minutes, two in 80 minutes, and one battery in an hour.

It comes with a USB Type-C charging port and a charging cable for connecting it to a USB power source, such as a standard USB wall plug adapter.

Three batteries cannot be charged simultaneously with an adapter providing less than 9V / 2A.