73. Operation3-1 Charging RX-RCCharge the RX-RC with the optional Dual Desk Charger RC-II (hereinafter, called as“RC-II”) sold separately.RX-RCIt is available to charge 2 sets of the RX-RCsimultaneouslyME SystemCharging PortsRC-II (Non-medical device)Insert the Handle of RX-RC into the charging port of RC-II, which is exactly connectedto the AC power through the AC adaptor, until it stops as shown in the above figure. Besure to turn the RX-RC off during charging.Full charging of battery is completed after approx. 15 hours from an unchargedcondition.When fully charged the RX-RC can be illuminated for approximately 80 minutes at themaximum amount of light.Read the instruction manual for RC-IIBe sure to charge the RX-RC after turning it off. If still ON, itmay create high heat felt hot in touch as well as charging isunable.