How To Keep Towed Vehicles Battery Charged When Flat Towing
Question:
I flat tow a 2015 Equinox. I use a 7 pin to 6, cord and socket on the car. The center pin aux is hot. Can I use this to keep the battery in the car charged when towing?
asked by: Curtis L
Expert Reply:
Yes, you can utilize the unused 12v pin on your 7 way and 6 way plug in order to keep your towed vehicle's battery topped off. Keep in mind, this will only act as a battery maintainer / tender but it will not charge a completely dead battery. It sounds like you are using a kit like Curt Tow Bar Extension Cord w/ Socket - Coiled - 7-Way RV to 6-Way Round - 96" Cord # C59HR in which case you simply attach a wire to the 6 way center pin (12v) and then run it to the positive terminal on your tow vehicle's battery.
To do this you can use a handy kit like Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25, or just run some standard wire 10 Gauge Primary Wire - Blue - per Foot # 10-1-1 along with 3 Ring Terminal # DW05705-1 and a 40 Amp In-Line Circuit Breaker # 9510. I attached a demonstration video for you.
Products Referenced in This Question
40 Amp In-Line Circuit Breaker - Perpendicular Mount Bracket
- Accessories and Parts
- Wiring
- Circuit Breaker
- 40 Amp
- Pollak
more information >
Ring Terminal - 12-10 Gauge Wire - 3/8" Ring ID
- Wiring
- Wire Connectors
- Ring Terminals
- 3/8 Inch Diameter
- 12-10 Gauge
- Deka
more information >
Roadmaster Battery Charge Line Kit for Towed Vehicles
- Accessories and Parts
- Tow Bar Wiring
- Battery Charge Line Kit
- Roadmaster
more information >
Product Page this Question was Asked From
Curt Tow Bar Extension Cord w/ Socket - Coiled - 7-Way RV to 6-Way Round - 96" Cord
- Accessories and Parts
- Tow Bar Wiring
- Adapters
- Extensions
- 7 Round - Blade to 6 Round
- Coiled Cord
- CURT
more information >
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