[FrankSchwab]

Great read, Diesel!

I've thought about adding a second battery to my boat, but the solutions out there in the world always seemed excessively expensive (certain high-end "battery isolators"), excessively complex (various home-brew cross-wiring systems, with/without Perko switches), or unreliable.

This one wins the cheap, effective, robust, and elegant awards.

Thanks,

/frank