Relay - Power & Charging Related
Double click the MFB to check the battery level. It's best to initiate charging when the Relay is at 25% battery level or below.
Plug the provided USB C charging cable into the charging port, then connect the other end to a 5V/500mA-2A rated USB adapter (your phone charger or similar should work) or PC USB port.
A flashing white light on the transmitter indicates that charging is in progress; the four lights will turn solid white, and then turn off to indicate a full charge.