battery removal

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mthom

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Oct 18, 2006
10
-Catalina 310 Ithaca,New York
I just purchased 2002 310. My first dumb question (many to follow), how do you remove the 2x4's that are holding down the batteries?
 

Tom J

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Sep 30, 2008
2,325
Catalina 310 Quincy, MA
Yep, they're held in place by some long screws that run down through the settee structure and some wood spacers and into the 2 x 4's. Unscrew the screws, and the 2 x 4's will slide out.
The outboard battery has to come out first. Lift up the forward end of the battery first, and pull the battery out at a sharp angle. Helps if you have a weight-lifter in the family.
 

mthom

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Oct 18, 2006
10
-Catalina 310 Ithaca,New York
Thanks for replies. Wondering what percentage of you guys living in the north leave the batteries on boat for winter.
 
Sep 25, 2008
7,435
Alden 50 Sarasota, Florida
There was a recent discussion which you can probably search for but the consensus was it isn't necessary to remove batteries and virtually no one does. Just make sure they are fully charged before winter sets in.
 
Sep 29, 2008
1,944
Catalina 310 #185 Quantico
The PaulJ method

Yep, they're held in place by some long screws that run down through the settee structure and some wood spacers and into the 2 x 4's. Unscrew the screws, and the 2 x 4's will slide out.
The outboard battery has to come out first. Lift up the forward end of the battery first, and pull the battery out at a sharp angle. Helps if you have a weight-lifter in the family.
As I recall it was to rotate both batteries sideways and then just lift out. Very easy.
 
Last edited:
May 3, 2008
190
Catalina 310 Catawba Island
I boat on Lake Erie and have never removed my batteries for the winter storage. After 5 seasons with the flooded cell batteries I did remove them and replaced with AGMs. I make sure they are fully charged and then disconnect. When I hook up the charger in the spring while still on the hard it is obvious that not much of the charge has been lost.
 

Tom J

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Sep 30, 2008
2,325
Catalina 310 Quincy, MA
I didn't try rotating the batteries first. Sounds like a good idea! This is the first time I've stored the boat for the winter, and I left the batteries hooked up since I have a solar panel to keep the batteries charged.
 
Jan 22, 2008
214
Catalina 310 #147 Oakville Yacht Squadron
You may have to take out the board with the fuse mounts and battery connections on it. I actually had to do some cutting on Hull # 147. They had glassed a weight onto the hull, presumably in the tank testing for level and it didnt allow the outer battery to rotate out adequately.
I have replaced them with 4 6V golf cart batteries. More capacity and lighter to manage.


I didn't try rotating the batteries first. Sounds like a good idea! This is the first time I've stored the boat for the winter, and I left the batteries hooked up since I have a solar panel to keep the batteries charged.
 

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Tom J

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Sep 30, 2008
2,325
Catalina 310 Quincy, MA
My boat (hull #231) doesn't have the fuse holders mounted on the wooden cross member. They're mounted on the cabin sole, next to the batteries, so they're not an issue when changing the batteries.
I like the 6v golf cart batteries. Had every intention of installing them, but my 4D's died while we were at anchor in Cape May, NJ. Had to buy new 4D's from Utche's Marina. Lucked out, though. They were a good price, and the manager and a helper (weightlifter) lifted out the old batteries, and dropped in the new ones for no charge. If you're gonna break down, that's the place to be.
 
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