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Old 10-09-2015, 09:43 AM   #11
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Originally Posted by camaraderie View Post
If you fully charge your battery...it will not freeze until -90 degrees. No need to store inside. Good to -16 degrees even if it is 60% charged. I fully charged battery will lose about 5% of charge / month in cold weather.
Keep in mind there are parasitic draws on most rvs that will discharge the batteries in a month or less.
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Old 10-09-2015, 10:18 AM   #12
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The 3 stage units are really just trickle chargers on the lowest setting. They can still over-cook your batteries over time. IMO, the best option is to disconnect the batteries from the RV and then hook a Battery Minder to the batteries. A Battery Minder is a smart charger and has anti-sulfation techology. My tractor, RV, motorcycle batteries last 7 to 10 years using these devices and they are always topped off and ready to go.
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Old 10-09-2015, 10:55 AM   #13
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Depends on hard or soft water avalilibity.
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Old 10-09-2015, 05:44 PM   #14
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I Always leave mine plugged in...
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Old 10-09-2015, 06:01 PM   #15
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Originally Posted by capitan View Post
I have a three stage converter on my motorhome, just wondering if anybody leaves they're shore power plugged during the of season, just to maintain the batteries
I have no faith in the inverter/charger units installed by the manufacturers. I've had several expensive batteries ruined while installed in trailers during the summer, let alone the off season. I recommend removal and regular checking and charging if required.
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Old 10-09-2015, 07:45 PM   #16
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All season long

Quote:
Originally Posted by capitan View Post
I have a three stage converter on my motorhome, just wondering if anybody leaves they're shore power plugged during the of season, just to maintain the batteries
I have a 5th wheel and upgraded my converter to a 4 stage unit and with this i do not even have a issue with the water, so as long as you do have at least a 3 stage unit you should be good, just keep an eye on your water for the first season to know how your unit works for boiling the water in the battery
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