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Old 03-01-2019, 07:12 AM   #1
Tom.B
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City: Cary, NC
Vessel Name: Skinny Dippin'
Vessel Model: Navigator 4200 Classic
Join Date: Jul 2009
Posts: 5,841
Quick Battery Question

Hey y'all,


I have a quick couple of questions about my batteries.

About three years ago now, I completely overhauled the battery system on Skinny Dippin' and used eight of your standard-issue Johnson Controls 6V - 220AH golf cart batteries. Since then, because of a myriad of reasons, we really haven't used the bank (and the boat for that matter) for its intended purpose and she has stayed plugged into shore power 95% on the time. When I did the overhaul, I used a Sterling 60A smart charger that does have float capabilities. After three years, what can I expect the condition of the batteries to be? Would it make sense to consider replacing them? Moreover, would a 24hr resting voltage test give me an idea of their life expectancy? If not, is there a test I could use?

Thanks.
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