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03-09-2024, 08:39 AM
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#1
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Established Member
Join Date: Mar 2021
Location: Boaz
Posts: 15
M.O.C. #28482
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Battery Dead
After having my 2019 Montana 3781RL winterized, I put it in storage. It has service from a 110v outlet. Nothing has been turned on and now the battery is dead. Any suggestions on what drained the battery? This is the first time the unit has been stored, full time the previous 3 yrs. Thanks Jimbo
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03-09-2024, 08:56 AM
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#2
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,236
M.O.C. #30417
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Did you leave the battery disconnect on? If it's plugged in and the disconnect is still on it should be charged. If it is on you may have a parasitic draw putting a minor load on the battery. If it's the original battery it may have run it's life span. 4 to 5 years on a LA battery is average. I'd pull the battery and bench charge it. Then load test it. If it tests good make sure your converter is charging. It's possible the converter is bad.
__________________
Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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03-09-2024, 09:02 AM
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#3
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Established Member
Join Date: Mar 2021
Location: Boaz
Posts: 15
M.O.C. #28482
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Yes, the battery disconnect was on. I will look further into the issue. Thanks
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03-09-2024, 09:59 AM
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#4
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Montana Master
Join Date: Jun 2017
Location: POINTBLANK
Posts: 1,888
M.O.C. #19944
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Fluid in the battery?? With shore power on, what is battery voltage? Should be 13+ volts if converter is working. I have had the ground wire connection to the frame become non-functional. Had to remove sand the components, lube and reconnect.
__________________
 RAM 22' DRW 3500 Crew LB 40 gal reserve tank / RETRAX Bed Cover / 2020 373RD HC / IS / MOPEKA Tank Monitor / Furrion Side&Rear Cameras
Slide Toppers / EMS-HW50C / Sailun 85's
3rd AC / Dometic 320
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03-21-2024, 08:54 AM
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#5
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Montana Fan
Join Date: May 2015
Location: fargo
Posts: 185
M.O.C. #17461
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When the 12 volt disconnect is engaged; it doesn't fully disconnect the 12 volt system (in mine the lp detector for example was still lit).
When you store the rv, disconnect the negative battery cable
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03-21-2024, 04:48 PM
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#6
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Seasoned Camper
Join Date: Oct 2022
Location: Wasilla
Posts: 79
M.O.C. #31898
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Quote:
Originally Posted by steiny93
When the 12 volt disconnect is engaged; it doesn't fully disconnect the 12 volt system (in mine the lp detector for example was still lit).
When you store the rv, disconnect the negative battery cable
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I wasn’t sure so completely disconnect the battery. Sounds like I made right call. 
__________________
2022 CC LB F350 SRW--Diesel; 50 Gallon Titan Aux Pack Tank; Airbags with onboard Air
2022 Montana 3231 CK (Lower 48 Winter Rig)
2007 28' Desert Fox Toy Hauler (Alaska Summer Rig)
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03-21-2024, 06:15 PM
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#7
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Montana Master
Join Date: Jun 2017
Location: POINTBLANK
Posts: 1,888
M.O.C. #19944
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Check battery voltage while on shore power - should be 13+ - pull shore power should be 12 + . If the first doesn't do 13+ then converter is out. which might be why it died.
__________________
RAM 22' DRW 3500 Crew LB 40 gal reserve tank / RETRAX Bed Cover / 2020 373RD HC / IS / MOPEKA Tank Monitor / Furrion Side&Rear Cameras
Slide Toppers / EMS-HW50C / Sailun 85's
3rd AC / Dometic 320
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