Well I tried it the crimped on way, and got burned.
It seems with crimped on connectors, it just does not work well in these conditions with high strand welding cable.
That ball looking thing is the corroded wire expanding the surrounding insulation
So I figured I will try another route.
I am cutting back the insulation to give some room to solder on these ends, heated and let it take flux, and then as much solder as the wire would wick.
Solder on the end,,
Add some silicone that's not (supposed to be) corrosive to copper
Put on a couple layers of heat shrink tubing.
Finished,, move onto the next.
The trouble with soldering on and doing all this is, its very time consuming!!