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10-24-2008, 10:17 AM
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#1
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Rivet Master
1993 34' Limited
Melbourne Florida
, Springfield Ohio
Join Date: Nov 2006
Posts: 759
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Batteries Shore Power
I am currently permanently parked and using shore power. What function do the batteries perform? Thanks.
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10-24-2008, 12:10 PM
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#2
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Rivet Master
2006 30' Classic S/O
Currently Looking...
Mohrsville
, Pennsylvania
Join Date: Jun 2006
Posts: 1,313
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Willyd,
I am not really sure, but I know I needed them. When I was remodeling our '87 I figured what do I need the batteries for when I am hooked up to shore power. So I did not install the batteries. The first time I turned on the radio, I was greeted with a loud 60 cycle hummmmmmm over the speakers. I put the batteries in and the hummmmmmm went away. So having the batteries installed must do something. Other than the hummmmmm everything else seemed to run fine without the batteries installed. I am sure somebody will provide the tchnical reason why we need batteries installed even when hooke up to shore power.
__________________
Carl, Elaine & Finn The Beagle
2006 30' Classic W Slide & Limited Package Katarina
2006 GMC 2500 HD 6.6 Turbo Diesel Crew Cab 8' Bed
TAC PA-3
S/OS#042
AIR #14487
NQ3U (was KB3UOM)
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10-24-2008, 12:15 PM
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#3
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Rivet Master
1979 23' Safari
1954 29' Liner
Orange
, California
Join Date: Feb 2005
Posts: 3,849
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Quote:
Originally Posted by willyd
I am currently permanently parked and using shore power. What function do the batteries perform? Thanks.
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willyd,
The batteries filter the power from the convertor. They also allow you to use the lights, furnace, water pump etc in the event of a power outage.
Bill
__________________
Bill Kerfoot, WBCCI/VAC/CAC/El Camino Real Unit #5223
Just my personal opinion
1973 Dodge W200 PowerWagon, 1977 Lincoln Continental, 2014 Dodge Durango
1979 23' Safari, and 1954 29' Double Door Liner Orange, CA
https://billbethsblog.blogspot.com/
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10-24-2008, 12:36 PM
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#4
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Rivet Master
1991 34' Excella
Princeton
, New Jersey
Join Date: Aug 2003
Posts: 7,070
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Your converter is not meant to be an ONLY source of 12 volts for those items in the trailer that use 12 volts. The batteries maintain a level source of power and supply demand current when you have everything in the trailer on at once. Once the heavy load is dropped the converter than has time to recharge the batteries.
Running on just the converter you will be supplying close to 14 volts. Light bulbs will not last too long under this condition.
__________________
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles
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10-24-2008, 04:02 PM
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#5
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Rivet Master
2006 19' Safari SE
Tucson
, Arizona
Join Date: Jun 2007
Posts: 4,627
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We leave our batteries in use (as opposed to disengaging them with the "disconnect" switch) even while we are parked with 30 amp service between trips...for periods of 1-3 weeks at a time...sometimes (alas) a little longer. We are always ready to go without having to worry about whether the batteries are ready for action or not. (We do have no-maintenance batteries, which are great. I believe with maintenance-required types of batteries, you need to continue to monitor them, even while hooked to shore power.)
__________________
TB & Greg and Abbey Schnauzer
AirForums #21900
PastPrez, 4CU/WBCCI
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10-24-2008, 04:07 PM
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#6
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Rivet Master
Currently Looking...
1984 31' Airstream310
Ajo
, Arizona
Join Date: Mar 2007
Posts: 7,649
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Quote:
Originally Posted by TBRich
We leave our batteries in use (as opposed to disengaging them with the "disconnect" switch) even while we are parked with 30 amp service between trips...for periods of 1-3 weeks at a time...sometimes (alas) a little longer. We are always ready to go without having to worry about whether the batteries are ready for action or not. (We do have no-maintenance batteries, which are great. I believe with maintenance-required types of batteries, you need to continue to monitor them, even while hooked to shore power.)
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Big ditto; we are full time.
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10-24-2008, 05:07 PM
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#7
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Rivet Master
1978 28' Ambassador
Morada
, California
Join Date: Jan 2006
Posts: 1,584
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Aside from those rather mundane features of the battery mentioned above...less not forget that it's weight helps to keep the front of the trailer on the ground when you walk to the rear...like a tetter-totter....
__________________
Ray & Pat; Morada, CA
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10-24-2008, 07:12 PM
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#8
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Rivet Master
2005 39' Land Yacht 390 XL 396
Common Sense
, Texas
Join Date: Sep 2007
Posts: 5,319
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Not sure about the late model converters, but the earlier ones will boil the water out of the batteries by overcharging them if left plugged in indefinately. So, you need to keep monitoring the water level, and keep replacing the water in the batteries.
__________________
Regards,
Steve
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10-24-2008, 11:44 PM
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#9
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Rivet Master
2005 25' Safari
Salem
, Oregon
Join Date: Mar 2006
Posts: 8,369
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Quote:
Originally Posted by willyd
I am currently permanently parked and using shore power. What function do the batteries perform? Thanks.
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Hi, the batteries run all of you 12 volt system and regulate the voltage made by your converter like the voltage regulator in a car. Without the batteries in the system your converter could fluxuate too much or send too high of a voltage and damage 12 volt control panels [E.G. refrigerator control panel] and burn out lights at an accellerated rate. [water heater, water pump, radio, furnace, Fantastic Vent, and thermostat]
__________________
Bob 2005 Safari 25-B
"Le Petit Chateau Argent" Small Silver Castle
2000 Navigator / 2014 F-150 Eco-Boost / Equal-i-zer / P-3
YAMAHA 2400 / AIR #12144
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10-28-2008, 12:02 AM
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#10
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I approve of this message
2006 28' International CCD
Redmond
, Washington
Join Date: Jun 2006
Posts: 94
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Quote:
Originally Posted by SteveH
Not sure about the late model converters, but the earlier ones will boil the water out of the batteries by overcharging them if left plugged in indefinately. So, you need to keep monitoring the water level, and keep replacing the water in the batteries.
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Late model Airstream supplied converters/chargers (single stage) will toast your batteries as well. 3 stage units configured for your specific battery type will allow you to plug into shore power for extended periods while keeping your batteries conditioned. Check - www.bestconverter.com
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07-28-2021, 10:44 PM
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#11
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1 Rivet Member
2018 30' International
Brownwood
, Texas
Join Date: Jan 2020
Posts: 11
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I have a 2018 international , I accidently left lites on for three days with the unit plugged in to shore power . Evidently the trickle charge on the batteries is not much. The batteries were run down and charged them externally. Also the converter will not operate the lights without the batteries.
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