Can anyone tell me where I can order an Optima Battery to use as a 2nd
battery in my "90 Westie?

I understand that it would be a good choice for replacement for the
Interstate Battery that the former owner had installed, (it just won't
hold a charge very well-around 3 or so weeks) since the Optima is a gel
battery, deep discharge, and I also understand that it can be installed
on its side and use the side terminals.

Thanks for any info.

Ralph