[roger1]

For long term reliability of my cable connections, I will use an AGM battery. I don't think corrosion would be a concern anyway with the adhesive type of heat shrink tubing but it definitely won't be using an AGM battery.
I'm putting a good bit of money into this cable and long-term reliability is my main goal. So, crimp, solder and adhesive type of heat shrink is what I want to do.

Thanks for all of the feedback though. It is a good discussion. I didn't know about these locking fittings but I think even though they may be good, they are a little bulky versus the crimp type since they are copper cast.