CCA for a 30hp 2 cycle Evinrude tiller

[4milebar guy]

Hi, I have a compound question #1 is do I need to have a starting battery for a 2 cycle 30hp Evinrude? #2 what CCA would be sufficient for this motor? Thanks!

 

[Grub54891]

Shouldn't need much. How old is it? Even on my old school 28hp Evinrude I prefer a group 31 with at least 750 CCA. A group 21 would suffice but I like more capacity.

 

[Faztbullet]

Nothing lower than 650CCA

 

[ahicks]

I think the right answer here might depend on the skipper's preferences. I can start, and do frequently, a 90 hp Honda 4 stoke using a garden tractor battery installed on my test stand. And it does that easily. There's no grunting involved. If we were talking about MY boat, with no other electrical involved, I wouldn't be a bit shy of something like that. Or maybe even one of those portable jump starters for the twice a year trip to the lake where the battery will be used only rarely??

 

[roscoe]

320 cca, or 400 MCA should do fine.
Dad used a 300 cca lawn mower battery for his 25 hp Merc when his boat battery went south when he was in Canada for a month.

I'm pretty sure my 70 hp manual only calls for 450 cca.

 

[4milebar guy]

Shouldn't need much. How old is it? Even on my old school 28hp Evinrude I prefer a group 31 with at least 750 CCA. A group 21 would suffice but I like more capacity.

Thank you, It’s a 1988 I believe.

 

[matt167]

300 CCA will spin it over without an issue.. FWIW I start my 20hp Johnson on the stand with an Everstart U1 lawn tractor battery.

But a battery with such low capacity will also not have a lot of amp hour capacity at all

 

[Faztbullet]

OEM Manual states:
12-Volt, 360CCA (465MCA) with 90 minutes reserve or 50Amp hours minimum

 

[4milebar guy]

300 CCA will spin it over without an issue.. FWIW I start my 20hp Johnson on the stand with an Everstart U1 lawn tractor battery.

But a battery with such low capacity will also not have a lot of amp hour capacity at all

Thank you, I’m pretty new to owning a fishing boat so there’s a lot I dont know. Would you use just a new “deep cycle” battery or a ”dual purpose marine“ battery to start the motor, run a occasional very small trolling motor, power night lights (occasionall) and occasional very small bilge and live well pump. Thanks ag!

 

[matt167]

trolling motor almost automatically needs something that will take deep cycle, as long as you have a battery that can deep cycle your good. A dual purpose battery can do the trick

 

[4milebar guy]

Thanks again I appreciate it

 

[Grub54891]

you should have a separate battery for the trolling motor. Unless you have a pull start for the main motor.