mercury volt question

[wayne72472]

i have a 660 cca battery on my motor i was told that it needed aleast 880 cca to run i was wondering what would happen with the 660 battery?
it starts good with no trouble at all . i was told that it might not reach full rpms just wondering if i need to replace it
its a 2000 90 hp ser ot331577 model 1990412yn

[JOE54]

a 660 will work a 850 would be a lot better and supply more amp to starter for eas of cranking , so as long as you don't have ANYTHING else connected to that batt might be fine , I wouldn't use any lower than 1000 on any ,kinda like fuel better to have lil more than you might need

[wayne72472]

do you know if that would have an affect on the rpm? i dont see how it could but i have heard some really wild stuff

[JOE54]

shouldn't on that mtr, its not opti max

[wayne72472]

Thanks