Deep cycle used for starting?

[chris in va]

I'm sure this topic has been covered, but is there really any harm in using a deep cycle for the engine battery? It's rated to something like 550cca's. I have another deep cycle running the other stuff on the boat. Not my choice, it's what came with the vessel when I bought it.

 

[JB]

Re: Deep cycle used for starting?

Not the best choice, Chris. 550 CCA is rather low for turning over a big 4 stroke. <br /><br />Starting batteries have lower internal impedance and can supply more starting current.<br /><br />I would look for a swap.<br /><br />Good luck.

 

[chris in va]

Re: Deep cycle used for starting?

That's what I figured. I don't know what the guy was thinking putting in a deep cycle. Do I really need a 'marine' starting battery or will a decent automotive work?

 

[hondon]

Re: Deep cycle used for starting?

It all depends on what you are cranking.The difference between auto and RV/MARINE ,batteries is the way the cells are encapsulted.They are tougher but do'nt seem to last as long?You go figure.

 

[Crazy]

Re: Deep cycle used for starting?

Does the boat start with out trouble ? , if it does leave it alone ... mine has 2 deep cycles in it . it starts fine ... all though they are 850cca and not 550cca . But if it works ... it works .