Remote battery disconnect
I have a 02 Roadtrek built on a Chevy 3500. Looking at adding a selector switch so when van is sitting I can charge the van battery also. Simple enough to add a couple wires and switch to the isolator...
Forum Discussion
I hadn’t seen those before. But makes sense and simple enough. Although for your purpose I believe it would require modification as it is made to simply disconnect one lead from the battery. You’re not trying to disconnect the start battery, you’re trying to combine them when the charger (converter) is providing juice.
Looks like another low buck security solution for, say, an old car.
On a separate note, the quality has to be horrible for $25 and I wouldn’t trust it to work as designed very long. And in the proper use, you’d be running starting current through it which may be marginal with only a 250a rating if you were starting the engine in the cold weather.
I bought a similar ching Chong made headlight relay kit for our old truck. It works but it’s worth about what I paid for it. And it doesn’t work great.
There are several other ways to accomplish what you want to do but in a more preferable manner IMO.
From a simple Perko type cutoff switch to an ACR type switch for automatic combining or cutoff.
Also I’d make sure you’re not creating some sort of ground loop or other issues as your rig should already have a charging circuit from the start system to the house batteries.
Looks like another low buck security solution for, say, an old car.
On a separate note, the quality has to be horrible for $25 and I wouldn’t trust it to work as designed very long. And in the proper use, you’d be running starting current through it which may be marginal with only a 250a rating if you were starting the engine in the cold weather.
I bought a similar ching Chong made headlight relay kit for our old truck. It works but it’s worth about what I paid for it. And it doesn’t work great.
There are several other ways to accomplish what you want to do but in a more preferable manner IMO.
From a simple Perko type cutoff switch to an ACR type switch for automatic combining or cutoff.
Also I’d make sure you’re not creating some sort of ground loop or other issues as your rig should already have a charging circuit from the start system to the house batteries.
