> Does anyone know "accurate" main and sub battery specifications?
> I install sub battery wiring to 87Westy now.
> Then, I have already gotten Isoretor.
> Does Deep Cycle Battery (Optima) conform to the sub battery box?
>

Yoshi...

There are several different models of the Optima battery.... make sure you
get the one that has side posts in addition to the top posts...

Then, in order to fit the optima battery into the 'sub battery box'
(auxiliary battery compartment), I cut two slots in the top forward lip of
the auxiliary battery
compartment... one for each of the top posts.
And then two slots in the battery box lid to assure the side posts don't
touch the
lid... then taped over the two gaps in the lid with black duct type tape.

Good Luck,
Bill