How to charge the Monimoto 9 battery?

Get a USB-C charging cable and adapter (not provided with Monimoto).

1. Remove rubber plug and insert USB-C charging cable into the charging port.
2. Wait till reset button LED displays solid RED indicating full battery.
3. Remove USB-C cable and replace the rubber plug.

NOTE: If you lose the little rubber plug don't worry, it is not needed for your device to be waterproof and is only there for extra protection against dust/dirt/grime from regular use.  The charging port itself is waterproof without the plug.