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post #1 of 6 Old 02-25-2005 Thread Starter
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Battery compartmnet

Hi all,
My current battery compartment, under the aft Q-berth, is not sealed at the bottom, and the batteries are held down by the open-air type of plastic hold-downs -- not in a box.

I''ve got the batteries tightly secured, but Murphy would say I should be concerned about spillage/leakage of battery acid. What do you think?

I''ve read about people glassing in their battery compartments, but was hoping their was a product I could use to heavily caulk all seams in the compartment. Any thoughts?

Thanks,
Dave
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post #2 of 6 Old 02-25-2005
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Battery compartmnet

You should absolutely seal up the bottom of that compartment, and I mean securely. You do not want battery acid leaking into your bilge. It could take out the bilge pump wires and cause a real problem. Also, it could eat away at other stuff and give you a nice rotten egg smell. You should also have a nice vent tube leading to the cockpit or overboard for the hydrogen that can accompany charging of the batteries. It''s light and floats up, so it usually always finds its way out of the boat no matter what, but it''s kind of a good idea if you''re going to upgrade a battery box under a berth.
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post #3 of 6 Old 02-25-2005
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Battery compartmnet

Battery boxes generally fit the bill here. Make sure cover is securely attached and secure box probably in same manner you have battery secured now.
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post #4 of 6 Old 02-25-2005 Thread Starter
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Battery compartmnet

Thanks for the responses. I think time and money dictate boxes for each battery and caulking. The compartment is already vented.

Dave
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post #5 of 6 Old 02-25-2005
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Battery compartmnet

Here Is something to think about if you have group 27 size batteries you may want to make the box the size that will allow an upgrade to group 31 batteries and that will allow you to put the batteries in the plastic boxes then in the glassed in wood box. The whole thing should be glassed supports taped and glassed to the hull or a the liner if they do not sit aginst the hull.Then paint out everything with gel coat with a plastic drain plug in the bottom to allow a good cleaning if needed. Vent tube yes again plastic merlon fittings no metal. To do it as cheep as you can go to Home Depot and get some tubes of 3M 5200 about $8.00 atube compaired to $13.00 at the boat supply and calk till you drop.
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post #6 of 6 Old 02-26-2005
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Battery compartmnet

Look at AGM Batteries if you have the $$$. Sealed and no need for a box, just secure them. These were developed for the milatary and can be placed in any position except upside down. They now have them in 6v. When my Trojan T-105''s die, this is what I will use to replace them.
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