Various plug connector available.
Samlex SEC-1230UL 12 Volt 30 Amp Battery Charger
Newmar 12-12-35I Power Stabilizer, 12 Volt, 35 Amp
Vector 6 / 12 Volt 2 Amp Battery Charger And Maintainer. 12 Ft. Cord
SCHUMACHER PRO #SPR1628 6/12 VOLT 8-Amp FULLY AUTOMATIC BATTERY CHARGER/MAINT.
Clore Automotive ES6000 Heavy Duty Battery Jump Starter 12 Volt 3000 Amp Peak
Sterling Power ProCharge Ultra : 12 Volt, 50 Amp Marine Battery Charger
