Does anyone know what the difference between the
Optima 750 "Deep Cycle" (yellow top) and the Optima
900 "Marine" (blue top) batteries is? The specs look
identical according to the Optima site. All the
references in the archives refer to the 750 yellow
top, though. Are the side mount terminals the only
difference? To use the under-seat area, the side mount
terminals would be required for the Optima, correct?
There is someone selling an unused D900M for $135, which
sounds like a good deal if it will fit.

Doug Fitz-Randolph
Freeport, ME
'90 Syncro