</font><font color="blue" class="small">( between them. I ordered battery connectors from Mcmaster-Carr and made some jumper cables. )</font>
There you go! Git 'er done!
Fudd! I knew I would run across some commercial connectors... after spending 2 hours cobbling together some home-made ones.
I recently got fed up with my riding mower eating a battery every year, and yanked it out of the battery box and put it on my tractor shed floor. I keep it charged with a solar panel and controller I have been using for some time.
I added a home made connector a lot like your MC units (I used 4ga because the mower battery cables are only ~6ga) I bolted the other connector under the seat in an existing bolt hole.
My ghetto connector was made from a pair of 2ga connectors used as the female, and a pair of 4ga used as the male. I mounted them on little slabs of oak, and they fit like a glove. I now start my riding mower by rolling it up to the battery, momentarily plugging in the connector, and starting it. It runs fine with no battery in the circuit.
I also bought me some good booster cables. They are 4ga, have nice flexible insulation, and beefy clamps. At least, I THOUGHT 4ga was good until I read about your BF booster cables! /forums/images/graemlins/shocked.gif
Origially, I was looking for coaxial connectors. That would be neat.