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11-06-2016, 03:37 PM
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#1
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Senior Member
Join Date: Sep 2016
Location: Aurora
Posts: 158
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Disconnect Battery when on shore power?
I am winterizing my camper. I want to keep it plugged into the house for the winter, but i don't want to over charge the battery. Will the battery disconnect stop the charger from charging the battery or should I just disconnect the negative on the battery.
I have a Wildcat 29rlx. When I do engage the battery disconnect the the living room slides still work.
Thanks
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11-06-2016, 04:02 PM
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#2
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Senior Member
Join Date: Oct 2013
Location: Florida
Posts: 1,363
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Using battery disconnect switch will prevent converter from charging batteries.
__________________
2016 Forester GTS 2801QSF
2011 Jeep JK Toad
Habitual RV Modifier
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11-06-2016, 04:37 PM
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#3
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Senior Member
Join Date: Jan 2015
Location: Kansas
Posts: 1,272
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Many of the newer campers have a 3 stage battery charger OEM. These charge or maintain the battery as needed. Yours may have one installed.
It's not good practice to extend / retract your slides with the battery cutoff switch "off". The slide motors or hyd pump draw a bunch of amps and it puts a LOAD on your converter. Your manual will back up my warning.
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11-06-2016, 04:45 PM
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#4
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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Quote:
Originally Posted by corocky1998
I am winterizing my camper. I want to keep it plugged into the house for the winter, but i don't want to over charge the battery. Will the battery disconnect stop the charger from charging the battery or should I just disconnect the negative on the battery.
I have a Wildcat 29rlx. When I do engage the battery disconnect the the living room slides still work.
Thanks
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Just leave it on and check your water in them monthly, just normal maintenance. I leave mine on 24/7 plugged in at home...
__________________
Coachmen M/H
Concord
2018 / 300 DSC
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11-06-2016, 05:02 PM
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#5
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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Quote:
Originally Posted by Witch Doctor
Just leave it on and check your water in them monthly, just normal maintenance. I leave mine on 24/7 plugged in at home...
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Yes you may have a power outage, if so your ready to go! Youroo! !
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11-07-2016, 02:46 PM
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#6
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Senior Member
Join Date: Sep 2015
Location: Tennessee
Posts: 260
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I always left mine on, until the converter failed and boiled the batteries dry. Ruined them. Luck to be in warranty. Now I fully charge and disconnect.
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11-07-2016, 05:02 PM
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#7
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Senior Member
Join Date: Mar 2014
Posts: 3,090
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Quote:
Originally Posted by ccsvolsfan
I always left mine on, until the converter failed and boiled the batteries dry. Ruined them. Luck to be in warranty. Now I fully charge and disconnect.
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Numerous WFCO converters have been found to never go into trickle mode (13.2V). Remaining in normal mode (13.7V) will slowly boil the water over a long period of time. I replaced my WFCO with a Progressive Dynamics converter which changes mode as it is supposed to. I no longer worry about leaving the camper plugged in for the long term.
Check the battery voltage after a week of being plugged in. If it's dropped down to 13.2V, your converter is working fine and the batteries will be properly trickle charged.
Fred W
2014 Rockwood A122 A-frame
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11-07-2016, 05:05 PM
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#8
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Senior Member
Join Date: Feb 2012
Location: Clarksville Va.
Posts: 10,422
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This is true I did the did the same thing changed out to progressive after two WFCO
__________________
Coachmen M/H
Concord
2018 / 300 DSC
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11-07-2016, 05:39 PM
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#9
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Senior Member
Join Date: Jun 2015
Location: Pensacola, FL
Posts: 1,645
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Quote:
Originally Posted by ccsvolsfan
I always left mine on, until the converter failed and boiled the batteries dry. Ruined them. Luck to be in warranty. Now I fully charge and disconnect.
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Same here, but warranty was refused because the battery cases were bulging from the overcharge. I now fully charge the batteries and disconnect them for storage. I then connect a 2 amp maintainer that is incapable of overcharging the battery bank.
__________________
2019 Coachmen Freedom Express 192RBS
2015 T12RBST Flagstaff Hardside
Disclaimer: The actual value of my "Two Cents" of advice varies just like a bitcoin.
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11-07-2016, 07:35 PM
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#10
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Senior Member
Join Date: Jun 2016
Location: Mid Michigan
Posts: 1,098
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Batteries charge
I was thinking about leaving the batteries connected and plugging the mh in with a heavy duty timer to come on for a hour a day to keep the batteries topped off without over charging. Good idea?
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11-07-2016, 09:48 PM
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#11
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Senior Member
Join Date: Feb 2014
Posts: 2,832
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Batteries in the winter lose about 10% of charge per month and WILL not freeze if stored fully charged (-91 degrees freeze point). I is FAR better for battery life to let the battery self discharge for 90 days THEN turn the charger on and let it provide a BULK charge which will stir up the acid/water solution and prevent stratification and sulphation.
Some of the newer Progressive and IOTA chargers have an automatic EQ cycle that comes on briefly once a week or so when the battery has been on float...and these achieve the same purpose...but I wouldn't just leave it on a 3 stage charger all winter especially when it is not necessary.
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Cam
2015 Georgetown 280DS
2019 Vespa Primavera 150's (pair)
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11-08-2016, 09:00 AM
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#12
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Senior Member
Join Date: Sep 2016
Location: Colorado
Posts: 1,309
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Quote:
Originally Posted by corocky1998
I am winterizing my camper. I want to keep it plugged into the house for the winter, but i don't want to over charge the battery. Will the battery disconnect stop the charger from charging the battery or should I just disconnect the negative on the battery.
I have a Wildcat 29rlx. When I do engage the battery disconnect the the living room slides still work.
Thanks
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I either turn off the converter at the breaker or use the disconnect switch. I keep battery maintainers on the batteries to keep them topped off and so they won't freeze. The maintainers will help your batteries last many years. I have yet to see a power converter that didnt boil the batteries dry. Dry battery=dead battery. Be sure to regularly check the water level. RV batteries are designed to charge and discharge regularly and will gas out the water regularly so check them.
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11-08-2016, 09:07 AM
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#13
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Senior Member
Join Date: Sep 2016
Location: Aurora
Posts: 158
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Thank you for all the replies. I think after my last trip this year next week I will just disconnect the battery and every 3 months check the water and plug it in for a day or two. By then, should be camping again.
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11-08-2016, 10:05 AM
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#14
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Senior Member
Join Date: May 2014
Location: Waterloo Region
Posts: 729
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I leave my 5er plugged in all winter with the batteries connected. I purchased one of these and have it plugged into the cigarette lighter socket beside the bed... I check it every few days (same as when I check the mousetrap) and its always reading 13.1 or 13.2.
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2015 Rockwood Signature UltraLite 8282WS Platinum, GY Marathon LRD, TST 507RV TPMS
2005 GMC 2500HD CCSB D/A, Curt E16, Prodigy P2, Garmin RV760LMT w/BC-20 b/u cam
Self restraint is for the young. I'm old and want it NOW!
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