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post #1 of Old 06-14-2019 Thread Starter
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Boiling Batteries


When I came on board my C30 the other day, I realized my batteries were boiling. I shut of my battery charger and sake of good order also disconnected my shore power. I was puzzled as to why they were boiling as I hadn't been on board for a few days and I would have thought that the batteries were fully charged. What puzzled me even more was 10 min. after disconnecting all power the batteries were still boiling.

I have 2 Flooded Lead Acid Deep Cycle 75 AmH which are being charged by an OLD Pro Mariner 30 battery charger (I have a photo of the charger, but can't seem to upload).

I am thinking that my battery charger is over charging the batteries, but I would be very pleased to hear your input on my situation.


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