CCred68046 wrote:
Does anyone know of a 2 battery switch that just allows for the use of one
battery or another at a time but NOT both? I just want a simple A/B switch.

Thanks.

Most if not all those multiple battery switches include a "both"
setting. They are set up so when you change from 1 to both or both to 2
etc the system never sees "no" connection, as this can damage some
proper alternator charging systems on the spot. particularly if done
when the alt. is running at high output. You can see how it might be
tricky or at least more expensive to create a 1/2 switch with this
protection.

Just get 2 on/off battery switches & position them so it's really
obvious if not physically difficult to have them both in the "on"
position together.

Don't get too fussed about having both batteries connected, the risks
are much overstated by the scary bananas brigade & yes the old OB
charging systems did show some high voltages but remember they never put
out much real power (amps). It takes high volts & high amps together to
murder a battery quickly & OB chargers of the type you've mentioned put
out very low amps even when they do work:-).

K