Acquired Falling apart off-grid system, need advice

[12VoltInstalls]

heat shrink tubing over the ends is just an electrolyte acid trap that will enhance the copper sulfide

I have not seen that situation.
In my experience sealing the crimped terminal ends with heat shrink preserves the protection from moisture/acid/salt water that the cable sheathing provides thereby keeping the wiring clean and fresh.

I’d agree for open-barrel crimps, however.

 

[John Frum]

@Artklein what news?