Batteries

For Grand Banks, Alaskans, East Bay & Aleutian Yachts

Batteries

Postby Berger » Sat Sep 14, 2019 3:50 pm

Hi All I have 4 6V golf cart batteries in my boat. About a month and a half ago I filled all with distilled water because they were low. This morning I checked and they were low again. I turn the DC off when I'm not at the boat other than the bilge pumps that never get used, safety precaution. I do leave the charger on, am I boiling the batteries? Cheers
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Re: Batteries

Postby Charlie0 » Sat Sep 14, 2019 4:58 pm

Sounds like they are overcharging and therefore “boiling “ the water out. Get the charger checked out.
Charlie O
Grand Banks 36
Hull 715
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Re: Batteries

Postby Berger » Sun Sep 15, 2019 9:52 am

I have a Xantrex Truecharge 40+ Amp Multistage charger that should only charge when needed.
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Re: Batteries

Postby 2Bucks » Wed Sep 18, 2019 11:39 am

You don't say how old the batteries are or what the specific gravity of each cell is. A single bad cell will trick the charger into overcharging. A quick trip thru the cells with a hydrometer will rule in or rule out a bad cell. If you find a bad one then you'll probably want to replace all the batteries.
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