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I will be installing a VIAIR 485C dual compressor OBA system, along with a Victron TR 12/12-30 Smart Isolated DC-DC charger to charge the 5th wheel batteries on travel days. What should I use to make the connections to the positive terminal of the batteries?
Additionally, the truck has dual batteries, does it matter which positive terminal I connect to?
The positive terminal on the passenger side battery has a post you can use (on my 22 6.7). As for ground I would just use the closest grounding point on the chassis.
Grounding to the chassis is a good idea. Otherwise if you go directly to the battery ground you want to be sure to run your ground through the sensor that measures amps used from the battery. It's on the PS battery ground wire.
I just wired an E locker on my Wrangler two days ago, and I wired the main power wire to the battery, and the switch turns on it with a relay. Can't you do something similar with a relay? I am going to put the ARB CMA 12 air compressor on the same way, using a relay as a turn-on switch?
I will be installing a VIAIR 485C dual compressor OBA system, along with a Victron TR 12/12-30 Smart Isolated DC-DC charger to charge the 5th wheel batteries on travel days. What should I use to make the connections to the positive terminal of the batteries?
Additionally, the truck has dual batteries, does it matter which positive terminal I connect to?
Thanks
This is how I did mine. That's 4 gauge wire on the DS battery terminal to a 60 amp circuit break through a solenoid controlled by an up fitter switch. On the camper side with that Victron I don't think you can use very large gauge wire as their terminals look like maybe 8 or 10 gauge at best. I installed a Renogy 40 amp DCDC charger. That 8 gauge wire goes to a fuse block inside the cab under the dash on the drivers side. For my air bag compressor and aux tank transfer fuel pump I used upfitter switchs.
This is how I did mine. That's 4 gauge wire on the DS battery terminal to a 60 amp circuit break through a solenoid controlled by an up fitter switch. On the camper side with that Victron I don't think you can use very large gauge wire as their terminals look like maybe 8 or 10 gauge at best. I installed a Renogy 40 amp DCDC charger. That 8 gauge wire goes to a fuse block inside the cab under the dash on the drivers side. For my air bag compressor and aux tank transfer fuel pump I used upfitter switchs.
Thanks for the ideas. The Victron DC-DC will accept 6 AWG wiring. My plan is to run number 4 from the batteries to an Anderson connector in the bed. Then number 4 on the camper side, and step it down to number 6 right at the Victron. Want to minimize losses/get max charging amps due to the length of the round trip circuit.
