Blue Ox BX88453 Towed Vehicle Charge Line Kit

Keeps your towed vehicle's battery charged while towing with your motorhome.

• Requires a minimum of 13.3 Volts to enable charge from the RV to the
  towed vehicle battery
• This charger requires a ground to exist between the towed vehicle and the towing vehicle
• Only charges when the RVs engine is running. Isolated when not charging
• Thermal protected
• Pulse with modulation (PWM) overcurrent and temperature regulation
• Protects from overvoltage and reverse batteries
• Direct Current (DC) load current continuous 15 Amps