My main battery to inverter interconnects posed me a problem. I wanted something flexible, but heavy. Battery leads are far too stiff, and nothing else I could find came close. So I had to make my own. Again.
I found some nice superflex welding cable. This stuff has 1200 fine copper strands, so it's really flexible. And as a welding cable, it's double-insulated.
Step 1 was to carefully cut around the outer and inner sheath, without nicking the conductors.
Slide off the outer, without disturbing the strands too much. (A slight twist the right way as it comes off helps)
Solid copper crimplugs designed for this cable will just slide on if you're lucky and didn't distort things too much.
I borrowed this crimping tool, because anything else was going to make a mess of the job.
I think I overdid it
I made 2 sets, as I planned on having two battery banks.
I added heatshrink (red for positive, black for negative, for easy identification and protection)
The nylon glands were easier to put on now. They protect the cables when they go through the inverters metal case.
A set of 4, all done.
Closeup of the ends
These cables are all still in use now, with no sign of any corrosion after 8 years use.