BC-105A is an ICOM-brand factory wall charger for ICOM 7.2v packs. Plugs into top of radios such as IC-W2A, IC-2SRA, IC-4SRA, IC-2GXAT, IC-4GXAT, IC-W21AT, etc. Plugs into 110-120VAC. Output is 12VDC @ 200mA. The BC-105A has a special proprietory ICOM barrel & pin combo plug. This is a special coax AND pin receptacle. You will need to look at the top of your particular radio to determine what type of plug is on your radio (OR consult your user manual). This charger will charge 7.2v packs while they are attached to the bottom of the radio.