size of battery?

hey boaters was wondering what size battery for my boat 1969 115 johnson ob w/ radio,fish finder and lights any help would be appriciated thanks

Re: size of battery?

Spike, I'd get the absolute biggest dual purpose type battery that will fit... Bare minimum, Group 27 size battery...

Re: size of battery?

thanks snapper appreciate the advice! :cool go patriots!!!!!!!!!!!!!!:

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