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Old 10-04-2009, 06:55 PM   #1
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2007 25' Safari FB SE
Dexer , Michigan
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What do I do with our battery over the winter?

DH wants me to ask. Should we plug it in and let it trickle charge over the winter? Should we pull it out?

Inquiring new AS owners would like to know.


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Old 10-04-2009, 09:52 PM   #2
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Leave a charger on it and check the water level monthly, or pull it out and put the battery in the house. I wouldn't leave it in the trailer with out keeping it charged -- might freeze, I'm told. Not the same problem here in Atlanta that you'd have, but I leave mine in and charging year round. Geo...

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Old 10-05-2009, 05:26 AM   #3
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I pull both batteries out and keep them in a heated garage over the winter.

About once a month I check the charge with a $5 hydrometer (Sears or Meijer), top up the water with distilled water, and put them on a trickle charger for a couple of days each.

The first time I took the batteries out I took a digital photo to make sure I got the wires back correctly.
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Old 10-05-2009, 06:44 AM   #4
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I leave mine on the trailer, and the trailer plugged in all winter. But I have a smart charging system that does not overcharge the batteries. Never had a problem doing this, and we get pretty darn cold here. Keep on top of the water levels.

SilverCottage's method is the other way of dealing with the batteries. If you do decide to pull them off, then you do not need to leave the trailer plugged in all winter. Make sure you do put them on a charger about every month to maintain them (or buy one of those maintenance chargers), and again, check the water level monthly.

IMO - either method is fine.

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Old 10-05-2009, 07:13 AM   #5
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I have had deep cycles in my bass boats for years and had to keep them charged over the winter. I think the best method is use a "battery tender" type smart trickle charger. Just plug it in and forget it. The problem with checking them monthly is that you forget and it has been 3 months. As far as using the trailer converter, it will do a fine job if it is a newer one with the smart technology, but it is easier to check water level if the batteries are out and when you take them out you can clean them and the connections and avoid any corrosion that will occur.
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Old 10-05-2009, 08:45 AM   #6
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Originally Posted by SilverCottage View Post
The first time I took the batteries out I took a digital photo to make sure I got the wires back correctly.
Exactly! I also found that a simple drawing is easy to keep in my manual.

A battery stored by itself will lose [is it 12-15%?] charge every month. Left hooked to the trailer, there are other unpredictable parasitic draws; eg, the propane detector. A discharged battery will freeze. In northern climates I would take out the battery until they repeal January...

Bring them into an above freezing space - basement in my case. It is okay to store them on a concrete floor - see And put a charger on them once a month.

It'll become second nature when you start writing gibberish like this...


5 meter Langford Nahanni

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