dji Goggles - Charging the Goggles; Battery Location and Charging Recommendations

 The Goggles’ battery is located on the strap. Connect the strap to the
charger for charging. The battery is fully charged when the Charging
Status Indicator turns off.
 A standard charger is recommended for charging. It takes
approximately 4 hours to fully charge the battery. Other chargers may
take longer.