SkiSmuggs wrote:
Grp 24 batteries are the cheapest and that is why dealers install them. A grp 24 has 75-80AH, a grp 27 has 90-100 although I had one from Costco rated to 110 amp hours.
It's not just about size. The OP gr 24 is not rated in AH. One of those "marine" (or marketed as marine), meaning this is something in between a starter battery and coach battery. Probably closer to starter than coach.
Mr Wiz is right on incomplete charging too. They are never full when using charging sources other than solar or VERY long shore charging. When it is not full at the beginning, it will not give you what it's supposed to.
