stupid battery question

(jmv) · (jmv) **Join Date: Aug 2005** 04-06-2006, 10:34 AM

I like to purchase a spare for my boat at Costco or Sam's Club but don't know which one to get. What should I be looking at (cranking)? I have an 05 SAN 210.
Thanks

(iagainsti) · (iagainsti) **Join Date: Apr 2004** 04-06-2006, 10:48 AM

I think Costco carries the Optima-go with the blue top.

(rodmcinnis) · (rodmcinnis) **Join Date: Sep 2002** 04-07-2006, 11:04 AM

The most important question is: What do your battery cables look like?

It is common for boats to use a lug terminal (a terminal with a 5/16" hole in it), in which case you need to get a battery with "binding post" terminals. This generally means "Marine" or "Deep cycle" type battery.

If your boat has the clamp type battery terminals then you need to get a battery that has standard top posts.

It is also possible that your boat uses the batteries with side posts, which would be a drag.

My '03 SAN uses the old fashion top clamps.

Once you have figured out what terminal type you need then I would get the biggest battery that would fit in the space. I do recommend a deep cycle battery if you intend to run stereo equipment with the engine off.