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Thread: Battery draw
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01-22-2023, 12:32 PM #1
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Battery draw
I have a battery draw when not plugged in to shore power , and with nothing on in the trailer. On my life blue battery app, it shows that I am losing 8 to 9% A-day off my 100 amp lifepo4 battery. I put a DC clamp meter on my positive line off my battery and I'm drawing 500 milli amps. It shows no loss when I have my disconnect switch off. I traced most of the draw to my 15 amp radio/heater fuse. I disabled the radio, and am experiencing a 7% draw a day from the heater still connected. I have a Grand Imagine 22rbe XLS. This can't be a normal drawdown is it for boondocking with nothing on? What should be a normal Milliamp draw, with nothing on in trailer?
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01-22-2023, 12:41 PM #2
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Your propane sensor is the most likely culprit. They are often wired even before the cutoff for safety!
Fridge electronics, thermostats, TV standby power and other minor draws can add up. A 1/2 amp constant draw seems quite reasonable for that trailer.
Welcome to the forum, and I suspect RVing. Lots to learn and this is a great place to ask and read old posts.Rick
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01-22-2023, 12:51 PM #3
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01-22-2023, 01:24 PM #4
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Thanks for the replies, with the one radio/heater 15 amp fuse out, only 1-2% a day. Maybe there is something else on that circuit I haven't found. Maybe the heater thermastat is bad? I plan to do a 400watt solar install this spring, should help.
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01-22-2023, 03:14 PM #5
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01-25-2023, 08:57 AM #6
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I had the same problem. Except it was a lead acid house battery while the unit was in storage. The CO2/Propane detector was the culprit for me. I put in a second battery cutoff switch next to the battery that disconnects everything. The thermostat, fridge- as gas/electric even has a small DC mA draw in gas mode, the control and monitoring system draws DC power. So your being "being nickeled and dimed" by a bunch of items drawing small current which adds up over time.
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01-25-2023, 10:32 AM #7
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I called the Grand Design factory in Middlebury, In. yesterday and talked to the Tech depth, they said for that trailer that 500mil-amp contant draw was an acceptable number, with everything on standby, guess I'll have to live with it. I had a 2007 trailer before this one with two 6 volt batteries, running the fridge, lights, etc, would last a week.
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01-25-2023, 11:46 AM #8
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Sounds like it is time to disconnect the negative battery lead from your battery so NOTHING is connected.
Larry KE4DMG
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01-27-2023, 10:45 AM #9
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01-27-2023, 12:04 PM #10
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Rick
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Channging Battery Type?
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