Dual Battery System

Andy,
That picture is out of CQ's thread with his fight with the hunters on his lake. Evidently the hunters don't like skiers late in the fall!! Personally I think the hunters need to go after the tubers on CQ's lake. He has problem with them too just as many of us do!!

BTW, they look like Coors lite cans so I suspect there was someone else involved with that "caper" too!!

how much air wrote: Don't bother with a crappy $40 isolator. Get a POWER-GATE that way you don't have a voltage drop to deal with, and you don't have the equalizing of the batteries like when a VSR connects a totally charged battery to a totally dead battery.

The isolator I have was $40 my price, $100 retail. The same thing used on ambulances and other commercial/industrial vehicles. It does not connect the batteries together. It uses diodes (which are like one way valves for electricity) which only allow current to flow one way. It is not like a relay which would just connect them whith an applied voltage. Very simple design, and diodes only drop .6 volts.

I agree that there are many ways to do it. This is one, and it works well.