Originally Posted by itat
Doug, the instructions for the VIAIR 400P that I just bought says you should run the engine to make sure the battery doesn't discharge too much so they seem to suggest you should connect to your vehicle's battery rather than the trailer's. Maybe if you have multiple deep cycle batteries you'll be OK. Have you used it connected to your 5er's batteries without being connected to shore power?
No, I've only used them with the truck batteries but I rarely leave the truck running. I don't run it long even when I'm topping up all 10 tires. And, the truck has dual batteries- so I've never had a problem starting it.
Running off of the camper battery was just an idea that I had with this concept of easy to hookup connectors. Right now, getting to my battery isn't super easy (move stuff in the basement, lift a panel, and unscrew the box).
For everyone else- good ideas. I have been thinking about something like the posts up under the wheel well- should be easy to run the wiring to it and easy enough to hook up.