Outboard battery recommendation

[NCVride]

I know I know this is for BUs, but you guys are a huge source of info.  Have a pontoon that we beat around on when not boarding, skiing or surfing with a 60HP 2 stroke on it.  4 speakers run off a head unit and that's about the extent of the electronics.  

What do you guys think on size of battery?  It has a deep cycle 800 CCA in it now but that seems a little extreme for that size motor.  

What side do you think and deep cycle or no?

[oldjeep]

Combo deep cycle starting Optima Yellow top.

[minnmarker]

If the current one still functions keep it.  If not then size 24 at Walmart. Cheap and all you need.  No need for bigger or deep cycle.

[NCVride]

Thanks guys.