In my experience so far, everyone has an opinion/advice on batteries. But we all have to keep in mind that where a store is located can dictate the batteries they carry and the specs could be different between say Napa US and Napa Canada or any international store.I really cannot see any downside to a higher capacity battery.
Go from your Group 25 to a Group 24 or Group 34?
Here in Canada, Walmart doesn't seem to carry as much as in the US.
They have a 24F (poles are reversed), Reserve is 120 minutes and CCA of 725A.
I bought the group 34: reserve of 115 minutes, CCA of 800A.
When I called to see if they had any 34's, they really wanted to make sure I knew my stuff and wanted to search for the "right" battery. They don't carry OEM replacement. I said I wasn't interested in that shitty OEM battery, I am buying a 34: do you want my money? (that seemed to work better)