[oldmattb]

Based on recommendations here on the forum, I replaced the stock-style battery with one of these.

Easy job! The battery fills the space completely, I was glad it had finger slots on the sides so I could get it out. The positive cable reached to the terminal. The negative would not reach, so I installed a three-inch metal strip to the negative terminal, and attached the negative cable to it.

For securing it, I used two pieces of wood 1x2 and a piece of dense foam under the seat rail. That held it down very nicely. The seat rail has to be removed for access, but it is just two bolts.

First time, it took maybe an hour. When I do our other Ace, it will likely take about 15 minutes.

I hope this helps someone.

https://smile.amazon.com/gp/product/B00B9JD7PG/ref=ppx_yo_dt_b_asin_title_o01_s02?ie=UTF8&psc=1

 

[Billmay]

The problem is that the pos and neg terminals are reversed from what the ACE uses which means a person would have to extend the wiring. I spent $150 on a battery that had the correct polarity. I changed mine hoping the higher CCA would spin the starter faster. No help at all.