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08-26-2019, 02:54 PM
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#1
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Seasoned Camper
Join Date: Oct 2018
Location: Topeka
Posts: 95
M.O.C. #22922
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Residential fridge drains batteries to quickly
I need help here.
2018 3811MS. Samsung residential refrigerator . .
Lately our residential refrigerator completely drains the 2 12V deep cycle batteries. I get an error message on the power inverter that says the voltage has dropped too low to sustain the 110 v to the refrigerator so it shuts it down.
There are 2 each 12 volt Interstate deep cycle batteries.
The battery water levels are fine.
Connections are all good and clean.
No other 110v items are plugged into this outlet.
Sometimes we travel 2-3-4 days with only 8-9 hours plugged in at night. The next day of travel the batteries are done within 2-4 hours after unplugging for the days travel.
By the 3rd or 4th day, I have to run the onboard generator after 2 hours of driving or the refrigerator will get too warm.
What do i need to do differently?
Please and thanks.
Steve Patterson
__________________
Steve & Ginger Patterson
2018 Montana 3811 MS
2018 GMC Denali 3500 HD Duramax
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08-26-2019, 03:21 PM
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#2
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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How many batteries do you have and what type are they? Residential frigs are huge energy hogs and so it takes a lot of storage and charging ability if you're not going to be plugged in regularly.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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08-26-2019, 05:36 PM
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#3
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Seasoned Camper
Join Date: Oct 2018
Location: Topeka
Posts: 95
M.O.C. #22922
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There are 2 each 12 volt Interstate deep cycle batteries.
__________________
Steve & Ginger Patterson
2018 Montana 3811 MS
2018 GMC Denali 3500 HD Duramax
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08-26-2019, 05:44 PM
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#4
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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Steve, you need to look at the inverter panel to see what the inverter is seeing for watts drawn on the 120vac side. Mine uses 170 watts on switch over from the park power and then may run up to 240 watts if the monte is warmer inside after towing for awhile. The dc input voltage reading on my inverter shows that the truck is producing a charge to keep the batteries happy (2 group 31 12v agms). Max draw for the 18 cuft samsung is 360 watts. Something is very wrong as you are noting. Inverter readings when you are off shore power and truck connected should give you help in figuring out what is going on. My first thought would be a battery has gone south and causing your issues, but if the electronics in the fridge have bite the dust then maybe your fridge is causing very high current drain. John
__________________
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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08-26-2019, 06:06 PM
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#5
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,659
M.O.C. #9969
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We have a Whirlpool and when running it draws 11 amps from the Batteries.
Our Magnum Inverter's Remote gives a direct read out of the amperage draw on the batteries.
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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08-26-2019, 07:11 PM
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#6
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Seasoned Camper
Join Date: Jan 2018
Location: Myrtle Beach
Posts: 81
M.O.C. #21038
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Do you have a working charge line from your tow vehicle to your Monty?? We arrive after 6 hours or so of travel with fully charged house batteries (13.2 volts), while running the Samsung on the inverter..........
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08-26-2019, 07:43 PM
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#7
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Seasoned Camper
Join Date: Oct 2018
Location: Topeka
Posts: 95
M.O.C. #22922
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I don't know how to tell if i have a working charge line from the tow vehicle. What should I look for?
__________________
Steve & Ginger Patterson
2018 Montana 3811 MS
2018 GMC Denali 3500 HD Duramax
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08-27-2019, 05:05 AM
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#8
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Montana Master
Join Date: Oct 2017
Location: Bastrop
Posts: 2,892
M.O.C. #20753
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your level up control panel has a battery voltage reading. with TV disconnected make a note of the reading. Then hook up 7 pin connector with TV running. you should see an increase.
Also take note of what your voltage is before you hook up to shore power and then afterwards. You may have the switch off in the inconvenience center or a faulty converter.
__________________
Mocha, one-eyed toothless, hurricane survivor, Pirate dog
2019 20th Anniversary Edition 3701LK
B&W 20K for Ford OEM Puck
2018 Ford F-350 Lariat CCLB PSD DRW KJ5CQH
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08-27-2019, 12:44 PM
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#9
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Montana Master
Join Date: Nov 2007
Location: Kville
Posts: 2,865
M.O.C. #7871
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We had a Whirlpool in a MH, it drew 3 amps when the compressor was running.
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08-27-2019, 02:57 PM
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#10
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Montana Master
Join Date: Aug 2015
Location: Mena
Posts: 504
M.O.C. #17723
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Make sure the ice maker is turned OFF. ( the ICE Off button is lite).
__________________
Ron & Rhonda
2021 3230CK Montana Legacy w/ Super SolarFlex
(old rig) 2015 Montana 3611RL 8K I.S., Disk Brakes, Sailun Tires
2015 F350 XLT Crew Dually 20K B&W Companion
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08-27-2019, 06:22 PM
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#11
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Montana Fan
Join Date: Jul 2018
Location: Islip Terrace
Posts: 405
M.O.C. #22165
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Quote:
Originally Posted by mhs4771
We have a Whirlpool and when running it draws 11 amps from the Batteries.
Our Magnum Inverter's Remote gives a direct read out of the amperage draw on the batteries.
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Double check, our samsung says 3.0 amps max, 11 amps sounds high, our kitchen aide at home is only 4 1/2.
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08-27-2019, 06:24 PM
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#12
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,659
M.O.C. #9969
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That 11 amps is the draw from the Batteries (12 VDC) to the Inverter, which equates to the approx nominal 1 amp draw of the Fridge on 120 VAC
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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09-01-2019, 01:17 PM
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#13
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Established Member
Join Date: Jul 2016
Location: Conyers
Posts: 20
M.O.C. #18815
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Hmmm, my inverter running my residential fridge says 800 watts, on Montana 3791.
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09-01-2019, 02:10 PM
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#14
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Montana Fan
Join Date: Mar 2009
Location: Sun Lakes, AZ 85248
Posts: 179
M.O.C. #9174
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A Solar Panel will extend your ability to stay off the grid.
__________________
Carl & Susan G
2021 Montana 3121RL Legacy
2017 Ford F250 6.7 diesel
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09-01-2019, 02:15 PM
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#15
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Montana Fan
Join Date: Oct 2018
Location: Humboldt
Posts: 176
M.O.C. #22879
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Quote:
Originally Posted by summer home
Do you have a working charge line from your tow vehicle to your Monty?? We arrive after 6 hours or so of travel with fully charged house batteries (13.2 volts), while running the Samsung on the inverter..........
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We do too. No problems charging with the truck. Fridge is on.
Joe
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09-01-2019, 02:32 PM
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#16
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Montana Fan
Join Date: Sep 2018
Location: Reno
Posts: 293
M.O.C. #22620
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If you've drained the batteries below 10.5 volts, they are probably shot. They may take a charge, but they'll drain very rapidly.
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09-01-2019, 02:40 PM
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#17
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Seasoned Camper
Join Date: Feb 2019
Location: Oroville
Posts: 66
M.O.C. #23396
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1, turn off your ice maker when you're towing or boondocking.
2, get rid of the 12 volt deep cycle batteries go to 4 6 volt batteries. "I use 4 Trojan t105 6v what the self-watering."
the two 12v batteries that came with my 3701LK would not last 4 hours with only the Samsung refrigerator.
If you will let one of your old batteries get below 11 volts it could have shorted out.
__________________
2018 Montana 3701LK, 2018 Dodge 3500 Laramie.
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09-01-2019, 03:03 PM
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#18
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Montana Fan
Join Date: Sep 2018
Location: Terry
Posts: 153
M.O.C. #22698
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I am running a single Duracell AGM 31M which has a 20 Hr ah rating of 105 @ 5 amps, thus the frig is noted as 3 amps draw when running. I have never had an issue of a drained battery with road trips 4-6 hours.
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09-01-2019, 04:42 PM
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#19
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New Member
Join Date: Jul 2019
Location: Weaverville
Posts: 8
M.O.C. #24525
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Tow vehicle alternator should be charging while on the road.
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09-02-2019, 01:23 PM
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#20
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Montana Fan
Join Date: Jun 2018
Location: Jacksonville
Posts: 382
M.O.C. #21993
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Your deep cycle batteries will drop out at 50% of usage, standard for lead acid or AGM batteries. Moving to Lithium Ion will allow you to discharge down to more than 90% before they drop out.
Yes they are more expensive but do some research (You Tube) and you'll find they are much less expensive over time have, 10 year warranty and have no off gas. The right thing for some, not for others.
__________________
I was once intelligent beyond my years. Now, I’m years beyond my intelligence.
2020 Montana 3561 Legacy, everything except paint.
2018 Silverado 3500 DRW, 50Gal Transfer Flow, Andersen hitch.
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