New small batteries pack a real punch these days. I would keep the size as is and do some research....there will be a battery available to meet your needs.
I agree. I noticed a Odyssay PC 680 in one of Bill Fink's +8+. "Does this really work" I asked Bill. I have used this Battery for about 10 Years and 50,000 miles on My +8 Bitsa. It is about the size of a College Dictionary and sits on the Bulkhead just above the starter. The first battery lasted 7 years and I replaced it just because it was old. Now 3 years use and no problems.
