Roadmaster156-25 Towed Car Charge Line Kit | Provides Efficient Battery Maintenance | Universal Compatibility | Self-Resetting Thermal Circuit Breaker

Was easy to install. Does not keep battery charged on long trip. Recommend auxiliary off/on switch to turn off auxiliary electrical devises in towed vehicle in addition.

Easy install to keep toad battery from discharging. Easier than having to pull fuse per manufacturer each time the vehicle is towed.

Basically, you're paying for a $8 circuit breaker.

The product itself is as advertised, but the service by Southern Car Parts was extraordinary. Their initial shipment was lost by USPS and when I let them know that I had planned to install it this weekend, they immediately expedited a replacement via UPS that arrived on Friday. I’m grateful and impressed!

Easy to install and good quality

Product was of good quality. Easily installed using instruction and components provided.

Great idea but what a ripoff. 3’ of wire- to short to reach my battery on stock 2020 f150, couple of crimps, cheap breaker and 6’ of loom. When I saw wire was too short, I went to O’Reillys. I reproduced kit with 18’ heavier wire, carling breaker, loom for a 1/3rd of price. Shame on you Roadmaster. Your tow bar is awesome and you stick it to me in the back door on accessories. Returned itI will be careful in the future when purchasing from Roadmaster

Product performs as intended, but a bit expensive considering the actual parts. What looks like a diode isn't, though, it's just a thermal breaker, so I needed to source an additional diode to prevent back feeding.

Ça pris du temp, mais tout était là...