Battery Direction switch

I am hooking up two batteries in my RV 10 and would like a on-on-on toggle so I could use either batterie or both. I am sure it is a simple thing but apparently I have been folded up in my panel too long. Would appreciate assitance from you masters.

Several options, but why not just use two separate toggles, each with an on or off position? Adds to the redundancy so you don't have a single switch fail and lose both batteries.

greg

I used

two of the Cessna type red split rocker switches to control the battery contactors for my two 680 batteries. Works and looks great. I can run either or both and have no single point of failure. Currently, the alternator side of the both switches control the single alternator , but if I ever add a backup alternator, I'll be ready to go...

2 Switches

More than one way to go.
I know you are looking for a single switch to handle 2 battery relays.
I cannot remember ever seeing one of those.
Here is what a lot of builders do.





These switches are available everywhere. In my case, I used the one that came with Van's wiring kit and added one to it. The alternator field function is connected between the 2 battery switches so each switch is a fully functional master switch.
While I only have one buss, this set up allows for easy seperation of essential
and emergency buss if I ever decide this will be neccesary.

Battery switches

Great info, thanks. Going to go the two switch route.