Does Roadmaster Tow Bar Charge Line Kit Have Diodes/Relays

Published 01/04/2022

Products Featured in This Question

Roadmaster Battery Charge Line Kit for Towed Vehicles

(1205)

$42.86

Starter Solenoid - SPST - 12 Volt - 100 Amp - Continuous Duty - Grounded

(13)

$35.05

Roadmaster Battery Charge Line Kit for Motorhomes

(140)

$67.45

Question:

Does the Charge line kit has a diode in it and a breaker in it? I think I still need a relay to keep relay hooked to a running light to keep the trailer towing vehicle battery from discharging when parked and using power inverter on my trailer. Do you have a kit like that with the relay that I can hook to the line and running lights and charge line kit?

asked by: Clinton T

Expert Reply:

The Roadmaster Charge Line Kit part # RM-156-25 is just the charge line wiring on the towed vehicle side and not the portion on the tow vehicle. For that you'd need the # RM-156-75. Neither kit comes with a relay or diode and one wouldn't be needed typically. The only way to make it so that this circuit isn't active when the vehicle is off would be with the Isolation Solenoid part # PK5231201 which you'd install inline with this circuit and then run a circuit that is only active when vehicle is on to the center post.

expert reply by: Jameson C