Charge circuit diode?
We have a charge circuit from the MH to the toad, but we're still having problems with the car battery going low. Have yet to pull fuses, and don't really want to (PITA). I'm wondering if maybe when t...
Forum Discussion
WyoTraveler wrote:
The problem with a relay is I would have to add a switch on the dash & 35 ft of wire back to the rear of MH & relay. The toad feeds voltage back on the back side of the ignition switch. It looks like key is on so slide won't work. (you have to have key off). Camera stays on. A toad charge does what a diode does for $80. Bottom line a relay wouldn't shut when you turn off ignition because of toad battery feding back. An ideal diode would be germanium. Doubt you can buy them any more. Schottky diodes do have lower voltage drop. Just hard to find electronic parts anymore.
Maybe I'm just confused but it seems like you're making this more difficult than it has to be. I would find where the toad charge line is fed at the front of the motorhome. Splice in the normally open contacts of a relay to that charge line. Wire the relay control lead to a +12v feed controlled by the ignition switch. You turn off the ignition switch, the relay drops out, and the charge line to the toad is opened. You already have a charge line wired back to the rear of the mh. Why would you need to run another one? Sorry if I am misunderstanding your situation but that's the way I would do it if I needed a way to automatically disconnect the charge line. In my situation I just unplug the cable.
