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Old 06-03-2023, 06:20 AM   #1
Brandi
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2022 cougar 364bhl draining batteries overnight, Why?

This trailer has been a complete nightmare. Nothing has worked correctly on it. We bought the off the grid package and have had the trailer out twice, both times, we go to bed, batteries are at 13.2v charge and by midnight, the batteries are completely dead. We aren't running heat, the inverter, nothing, except the fridge. Is this an electrical problem with this trailer? If so, add it to the growing list. Anyone else having this problem? We even went to town and bought two brand new batteries, same thing happens.
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Old 06-03-2023, 07:08 AM   #2
flybouy
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What type batteries? Are they 12v,in parallel, 6v, in series, group size, amphr rating, deep cycle or marine/rv batteries? More info is needed. The fridge, if residential can draw very high amps and deplete a "standard" group 24 battery rather quickly.
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Old 06-03-2023, 07:12 AM   #3
Brandi
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Quote:
Originally Posted by flybouy View Post
What type batteries? Are they 12v,in parallel, 6v, in series, group size, amphr rating, deep cycle or marine/rv batteries? More info is needed. The fridge, if residential can draw very high amps and deplete a "standard" group 24 battery rather quickly.
Thanks for responding. They are brand new, deep cycle, 12 volt, run in parallel. We have the double door Dometic fridge.
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Old 06-03-2023, 07:51 AM   #4
sourdough
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Sounds like those batteries are the RV/Marine type batteries. Do they have CCAs listed on the top? Also, does it have the 16 cu. ft. DC fridge? If so that may be your problem.
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Old 06-03-2023, 08:18 AM   #5
Brandi
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All I can find is its a 120v , 60 hz, 3.5 amp. Nowhere on the label or the manual does it tell me cubic.
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Old 06-03-2023, 08:29 AM   #6
Brandi
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My husband did the math, he said it is a 13 cu feet, that runs on gas and Dc, and the batteries are srm-24m deep marine cycle batteries.
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Old 06-03-2023, 08:56 AM   #7
NH_Bulldog
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From what you have posted so far, it sounds like the dealer over-sold you on the specifications, capabilities and realistic expectations of what your setup is and is not capable of.

For starters; your fridge can be gas/electric (propane/AC), or DC only (no exterior side wall vents) or AC only (residential model). So first, what refrigerator do you have?

Next is batteries; dealers typically install RV/Marine batteries labeled as “Deep Cycle”. On top of the batteries you should see a label showing battery info like 88 Ah and/or 600 CCA and 750 CA. If it lists CA or CCA they are not true deep cycle and are not really suitable for any length of off grid use. The specs I listed are for larger group 27 batteries. Your group 24 batteries will have less capability.
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Old 06-03-2023, 12:48 PM   #8
chuckster57
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A pair of SRM go 24 batteries should power a Dometic fridge overnight. You have a draw somewhere.
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Old 06-05-2023, 03:37 AM   #9
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One battery should run a fridge on gas overnight. Welcome from northern MN.
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