I have an old truck and I don't drive it much. I've hooked up a 1.5v solar charger to the battery to keep it fresh. It's working well, but when I do drive it I need to unplug the solar panel or risk burning it up when the truck is running. My worry is when someone borrows the truck that they'll forget the panel and maybe start a fire in the cab.
My question is what switch would I need to be able to toggle the solar panel ON and the truck ignition OFF or have the solar panel OFF and the ignition ON? I.E. - flip it up and the panel starts flowing juice to the battery and you can't crank the truck. Flip it down and the solar panel's path to the battery is severed and the truck will crank if you want to.
I've looked at the on/off/on switches on Amazon and, at least the ones I've found, don't seem to do what I want. They seem to just turn the same thing on when flipped up or down? Example with a wiring diagram here: https://www.amazon.com/Nilight-Heavy-Duty-Toggle-Switch/dp/B0002ZPBRA/ref=sr_1_1?keywords=on+off+on+switch&qid=1580181117&s=automotive&sr=1-1