194 BATTERY CHARGINGRapid charging with the BC-121N+AD-106DThe optional BC-121N allows up to 6 Li-ion battery packs tobe charged simultaneously. The following items are addition-ally required.• Six AD-106 charger adapters• An optional AC adapter or the DC power cable (OPC-656)BatterypackAD-106 chargeradapters are installedin each slot.AC adapter(Purchasedseparately)TransceiverDC power cable (OPC-656)(Connect with the DC power supply; 13.8 V/at least 7 A)*About the OPC-656Red line : Black line :Turn power OFFIMPORTANT: Battery charging cautionEnsure the guide tabs on the battery pack are correctlyaligned with the guide rails inside the charger adapter.(This illustration is described with the BC-160.)Guide railTabs