Originally Posted by ROBERTSUNRUS
Hi, "YES" you can, but how are you going to adjust the brake controller to match the tow vehicle? And how are you going to activate the manual control lever when full brakeing is needed. "NO" you won't be able to.
Have towed a trailer with surge brakes I would not recommend it for a larger trailer. Surge brakes only work when the combination is in a straight line. They are NO HELP on a curve because the tow vehicle is extending the tongue just when you want the brakes to work
If you use a standard 7 pin connector you can feed the trailer battery voltage forward to the brake controller on the 12 volt
pin and still have an independent system operating off the trailer batteries. If you do this I would suggest you use # 10 wire for the battery and brake wiring going through the TV to overcome voltage drop do to line lose.
If you want to be able to pull other trailer with the TV that would require the use of the 7 pin connector use the center pin, commonly used for backup lights, as the trailer battery feed forward. You could also put relay on the TV end of this wire to switch it between the trailer battery and the TV backup lights thus have the best of both worlds. When the trailer was attached the relay would pull in and cut off the backup light circuit. When any other trailer was in tow the back up lights on that trailer would work.