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Old 10-18-2008, 06:06 PM   #1
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winter batteries

just put 2 new interstate batteries in my 92 36ft landyacht motorhome
storing it in non heated building
why can't i just leave the batteries in it until spring????
i can turn off main battery switch
same batteries in truck!!!
kevin
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Old 10-18-2008, 06:54 PM   #2
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I would think you can, I would just take the cables on the batteries as well as an added caution...
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Old 10-18-2008, 07:07 PM   #3
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Batteries

Flooded cell batteries discharge at the rate of about 1% per day when not in use. If you leave them over the winter, they will likely be completely discharged by spring. A better approach is to take them home and put them on a charger intended for maintaining batteries. Flooded cell rv/marine deep cycle batteries should not be discharged below 50
% for best life.
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Old 10-18-2008, 07:25 PM   #4
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Quote:
Originally Posted by kepko View Post
just put 2 new interstate batteries in my 92 36ft landyacht motorhome
Interstates will last you about two years, with luck.
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Old 10-18-2008, 09:16 PM   #5
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Biggest issue is that even with the main 12 volt disconnect off, you will still have some drain / loads from e.g. propane / monoxide detector. They will drain your batteries dead over winter if the self-discharge doesn't. Then they'll freeze in Mass. winter and they're goners.

Best bet: take em' home and leave em' on a Battery Tender or some such over the winter. Top the electrolyte up in the spring and you're good to go.
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Old 10-19-2008, 07:55 AM   #6
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What they said

Take 'em out, keep 'em warm, topped up and on a maintanence charger.
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Old 10-19-2008, 08:34 AM   #7
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I bought a "Battery Float Charger" from Harbor Freight for $15. It only comes on only when needed and keeps the battery charge topped off.

I have had an Interstate deep cycle battery for more that 5 years. My Univolt even boiled it dry once or twice. Still works good for me.
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Old 10-19-2008, 04:39 PM   #8
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Without a power source, I would pull them if you don't plan to charge them until spring.
If you have a power source, a maintainer would keep them topped off.
MA can be brutal in winter as I'm sure you know and when they discharge, sulfation and stratification will reduce their ability to hold a charge.
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Old 10-20-2008, 05:27 PM   #9
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I'm facing the same decision. I can leave my batteries outside in the AS with a Battery Minder attached, or take them out and bring them inside, still with a Battery Minder attached. Does it matter which I do?
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Old 10-20-2008, 07:20 PM   #10
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I'm facing the same decision. I can leave my batteries outside in the AS with a Battery Minder attached, or take them out and bring them inside, still with a Battery Minder attached. Does it matter which I do?
"Bertha" the 53 Ford, sits in an unheated garage with a 6 volt Battery Minder all winter with no problems. Our old Burb has sat all Summer on the pad also with a Minder on it, five months with no water loss. The only hassle is the extension cord out to the pad.

I take the batts out of the Stream. Ran out of minders and extension cords.
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Old 10-21-2008, 12:45 AM   #11
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A battery minder, if properly sized to the batteries, will keep them at a state of full charge, and will help keep them from freezing.

These devices are inexpensive, and well worth the money to lengthen the life of your batteries...plus they will be ready to use when the spring thaw rolls around...
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Old 10-27-2008, 07:54 PM   #12
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I keep my AS in a insulated, not heated hanger. I have 110 power available. Is it advisable to just plug the AS into shore power and use the system to keep my batteries charged? Or would an investment in a "maintainer" be advised?
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Old 10-27-2008, 08:37 PM   #13
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I keep my AS in a insulated, not heated hanger. I have 110 power available. Is it advisable to just plug the AS into shore power and use the system to keep my batteries charged? Or would an investment in a "maintainer" be advised?
Never trust an un-watched Airstream...A Battery Minder or a good float charger is a worthwhile investment, ask me how I know.
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Old 10-27-2008, 09:16 PM   #14
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................ ask me how I know.
How do you know? Did you have problems keeping the AS plugged in?
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