It is a single item unit manufactured by Schumacher in the United States.
SCHUMACHER 12V SHIP 'N SHORE 10A DEEP CYCLE/MARINE MANUAL/AUTO CHARGER SS-51A-PE
Schumacher XCS15 Ship ‘N Shore 15 AMP Speed Automatic Battery Charger 6V/ 12V
Schumacher SSC-1500A 12v Ship N Shore Speed Charge Portable Battery Charger
Schumacher SSC-1000A 12v Ship N Shore Speed Charge Portable Battery Charger
Schumacher Ship N Shore 10 Amp Automatic Charger Marine Deep Cycle SS-51A-PE
10 Amp Automatic Charger Marine Deep Cycle Schumacher Ship N Shore SS-51A-PE
