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Old 10-25-2012, 11:44 AM   #1
Join Date: Aug 2012
Location: NE
Posts: 86
Battery care for winter?

I will put a tender on the chassis battery over the winter but how should I handle the house batteries? Can I just put tenders on them as well or should I keep the MH plugged in all winter or should I disconnect the cables and actually pull the batteries out?

I just put in two brand new batteries today so I want to make them last as long as possible.


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Old 10-25-2012, 12:10 PM   #2
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I leave mine plugged in, but I have a good 3-stage converter/charger, that wont boil my batteries dry in a few days.

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Old 10-26-2012, 08:36 AM   #3
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As 96 said, if you have a good 3-stage charger, leave it plugged in. If you don't know if you have a good converter/charger then best to go the two battery tender route.

If the batteries are currently good, you could just disconnect them until March and they will be just fine.

A lifelong waterman and his bride going dry places for as long as the fuel money lasts.
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Old 10-26-2012, 09:17 AM   #4
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I check/fill up the battery fluid levels, charge the batteries, shut down the inverter/charger, turn the house and chassis battery banks off and put Battery Tenders on both. Works like a charm for me.
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Old 10-26-2012, 09:33 AM   #5
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I use the disconnect switch on the chassis battery and flip it when I need. The unit is left plugged in all winter so I can have a small heater inside. I don't use anti-freeze in my lines because it doesn't get cold enough and I have an insulated underbelly. I also check my house batteries monthly for water levels.
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