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11-16-2015, 08:28 AM
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#1
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Senior Member
Ford Super Duty Owner
Join Date: Nov 2010
Posts: 1,345
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Slide Out and Batteries
Recently I was informed that my slide motor needs replacement. The one of concern is a 28/1 Power Gear unit. It controls my larger slide. Also recently I have been unable to start my generator. My first thought with the gen was that my house batteries may be bad. One of them has a bulge in the case on top near the positive terminal. In my case, and I will assume all are the same, the slides will not operate unless the house batteries are connected. The batteries seem to be at about 6 volts, which would seem to be correct, but they still will not crank the gen. What tests can I perform to determine if they are bad/good and are they a controlling factor with the speed in which a slide goes in and out?
Thanks
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Tonkin Gulf Yacht Club
2009 Fleetwood Bounder 35H
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11-16-2015, 08:40 AM
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#2
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Senior Member
Winnebago Owners Club Ford Super Duty Owner
Join Date: Jul 2012
Location: Where the Rig is Parked
Posts: 1,399
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Take picture of connections . . . Remove them . . . Take to auto parts store and have them load tested.
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11-16-2015, 08:49 AM
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#3
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,500
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Two 6 volt batteries , wired in series to power your 12 volt loads ( lights , slide motor , gen set starter.) if in good condition and full charged , should test at 12.5 > 12.7 volts, or approx 6.3 volts each battery. Anything under 6.2 volts at the battery posts, after being charged, is an indication of a bad battery.
More info at.
The 12volt Side of Life (Part 1)
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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11-16-2015, 08:52 AM
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#4
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Senior Member
Join Date: Mar 2013
Location: Boise, Idaho
Posts: 715
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Are you sure which batteries operate the slides, or gen.? On our Fleetwood unit the house batteries start the gen. The chassis/ engine battery operate the slides. The dealer/tech stated to always start the engine while operating the slides as the slide motors will burn out with low voltage.
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2016 Thor Tuscany 34ST XTE, Freightliner XCR, ISB 360hp/800tq. Allison 3000, Koni FSD shocks, Roadmaster 1.75" front sway bar, Safe-T-Plus, DYI air bag flow control valves.
2015 Jeep Willy's Wheeler Wrangler Unlimited Toad, Ready-Brute-Elite tow system.
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11-16-2015, 12:38 PM
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#5
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Senior Member
Ford Super Duty Owner
Join Date: Nov 2010
Posts: 1,345
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I disconnected the house batteries (two 6 volt) and the slide would not move at all. Can the batteries be charged as a 12 volt or must they be charged as 6 volt batteries separately?
__________________
Tonkin Gulf Yacht Club
2009 Fleetwood Bounder 35H
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11-16-2015, 01:03 PM
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#6
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Senior Member
Join Date: Mar 2013
Location: Boise, Idaho
Posts: 715
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Quote:
Originally Posted by LSC9901
I disconnected the house batteries (two 6 volt) and the slide would not move at all. Can the batteries be charged as a 12 volt or must they be charged as 6 volt batteries separately?
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Two 6 volt batteries (in series) are normally charged by your 12v converter. Check you batteries along with the output of your converter.
__________________
2016 Thor Tuscany 34ST XTE, Freightliner XCR, ISB 360hp/800tq. Allison 3000, Koni FSD shocks, Roadmaster 1.75" front sway bar, Safe-T-Plus, DYI air bag flow control valves.
2015 Jeep Willy's Wheeler Wrangler Unlimited Toad, Ready-Brute-Elite tow system.
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11-16-2015, 03:05 PM
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#7
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Senior Member
Join Date: Feb 2013
Location: Graham, WA
Posts: 773
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Quote:
Originally Posted by LSC9901
I disconnected the house batteries (two 6 volt) and the slide would not move at all. Can the batteries be charged as a 12 volt or must they be charged as 6 volt batteries separately?
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Yes, those two six v batteries with the positive of one connected to the neg of the other just make one large 12 v battery. Your converter and your engine alt both make 12 v for charging.
__________________
2006 Gulfstream Friendship G7, Cat C7 and Allison 6 spd
Honda VTX and Cruiser Lift on the back
Blue Ox Aladdin, Brake Buddy, 2019 Chevy Blazer RS toad
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11-16-2015, 05:21 PM
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#8
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Senior Member
National RV Owners Club
Join Date: May 2014
Location: Decatur, TX
Posts: 224
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You can't test the condition of a battery with just a voltmeter. It has to have a load test done.
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11-16-2015, 06:13 PM
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#9
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Senior Member
Ford Super Duty Owner
Join Date: Nov 2010
Posts: 1,345
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Quote:
Originally Posted by jimnkee
You can't test the condition of a battery with just a voltmeter. It has to have a load test done.
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Next on my list of things to do !
Thanks
__________________
Tonkin Gulf Yacht Club
2009 Fleetwood Bounder 35H
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11-16-2015, 06:15 PM
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#10
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Senior Member
Ford Super Duty Owner
Join Date: Nov 2010
Posts: 1,345
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Quote:
Originally Posted by IdahoSRT10
Two 6 volt batteries (in series) are normally charged by your 12v converter. Check you batteries along with the output of your converter.
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How does one check converter output?
__________________
Tonkin Gulf Yacht Club
2009 Fleetwood Bounder 35H
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11-16-2015, 07:14 PM
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#11
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Senior Member
Winnebago Owners Club Fleetwood Owners Club Holiday Rambler Owners Club
Join Date: Dec 2011
Location: North East Florida
Posts: 2,028
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Bulging battery case is a bad sign. Everyone I have ever dealt with was bad. Sounds like you have a bad cell.
__________________
2019 Horizon 42Q
Cummins L-9 450 HP
Maxum Chassis / IFS with Tag
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11-16-2015, 08:07 PM
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#12
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Senior Member
Join Date: Apr 2010
Location: West Columbia SC
Posts: 809
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11-16-2015, 09:09 PM
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#13
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,982
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Quote:
Originally Posted by Rodneykrantz
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Here is one that works for 6 and 12V: ATD-5488 ATD-5488 100 Amp Battery Load Tester - tooldesk.com and is about the same price.
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2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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