I'm curious as to your root problem. I don't have a suggestion. I have 3 vehicles. Each has a battery minder attached. All aren't connected in the same manner.
a. The
Cobra: the positive cable is always
switched off when sitting. Same battery for about 7 years.
b. The
F350 diesel: it has twin batteries. All cables remain connected. Same batteries for about 3 years.
c. The
Mustang: All cables remained connected. Same battery for about 5 years. (sold this car last month)
David