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Old 01-09-2015, 06:31 AM   #1
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Removing battery

I removed my battery for the winter after reading several posts recommending to do so. But a lot of you say you charge it from time to time over the winter. Why not just put a charger on it right before you put it back in at spring time?

Any thoughts?

Chris Moore
2010 Starcraft/Jayco 297BHS pulled by
2009 Chevy Silverado
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Old 01-09-2015, 07:22 AM   #2
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You don't want the charge to drop for a long period which in turn will weaken the cells thus causing shortened life of the battery.

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Old 01-09-2015, 07:37 AM   #3
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+1 what Adk says. A battery unconnected to anything will discharge itself slowly, and if it gets below 50 - 60% it does take a toll on overall life of the battery. I would say hooking it up to a charger once a month is more than sufficient to keep it charged.
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Old 01-09-2015, 08:09 AM   #4
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Here is one area where I would highly reccommend cleaning off the top of the battery with baking soda and water with a old toothbrush to totally remove the sulphates that accumulate on the top of the battery between the cells. That "slime" between the terminals is the main culprit that discharges your battery. Here is another really good reason to top off cells with distilled water ( ion free). And yes, periodic/ every other month on the charger will get you the maximun life out of your deep cycle batteries ( trolling motor batteries too!)
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Old 01-09-2015, 10:12 AM   #5
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To be the contrarian - the boat guys also go over this issue. Between my boat and my RV, I would have 5 very heavy batteries to pull, store, and put on chargers. Over the years, I've found that as long as the battery is in good shape, putting it away with a full charge, and disconnected, does not cause any issue. Of course, in my climate, the storage temps can get to -30, so that really reduces chemical activity! Might be a different story if your "winter" means dropping to 40-50 degrees.
I store at my dealers lot, and they also advise the same for the hundreds of customer RV's they store and service each winter, and have for almost 40 years. Ditto for my marine dealer, who stores more than a thousand boats over the winter for customers. Can't argue with that kind of mass experience.

In the spring, a couple hours on the charger, and they are all at 100%.
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Old 01-09-2015, 03:45 PM   #6
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I had a problem on my jeep with corrosion no matter how much I cleaned the terminals. So I bought some of those red and green felt pads and the problem went away

not a bad idea
Chris Moore
2010 Starcraft/Jayco 297BHS pulled by
2009 Chevy Silverado
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Old 01-09-2015, 05:26 PM   #7
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I usually leave my batteries in the trays on the trailer but this season I took them. You guys discussing them here made me go check mine a few minutes ago haha..

My two Interstate 12V Batteries both read 12.5VDC and have been sitting disconnected about two months now. Since it is getting colder now I will will probably do a slow 6AMP charge on them tomorrow...

Roy Ken
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Old 01-09-2015, 09:47 PM   #8
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I pull the batteries, to be safe, and put them on the charge every few months. I also setup my boiler (hot water heat) in my house with an outlet and a heavy duty power cord. Then if we have a power outage, I can us a TT battery with my inverter to have heat in my house.
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Old 01-18-2015, 09:37 AM   #9
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If you have a power source connect an inexpensive battery minder to the battery and forget it.
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Old 01-24-2015, 02:33 PM   #10
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I have 4 of these: https://www.batterytender.com/Charger...derR-Plus.html
Every Fall, I remove the batteries from my boat (2), travel trailer and lawn tractor. They are on these chargers all winter in my garage. I wouldn't use anything else and since they maintain the charge without over charging, you will get the longest life out of your batteries. I add distilled water to any low cells before putting them on the charger (unless they're sealed) and come Spring, I know they will be good to go.


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