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Residential Refrigerator 12 volt battery usage with inverter.
I took the 2017 3721 to a service shop. We parked in their driveway over night. Here are the Power/amp hour readings and calculations I have. When we arrived at 3pm here is the info:
Date. Time. AH Reading
1/6/20 3:12 PM -1.5
We used 167.5 amp hours in six hours powering the refrigerator, lights, furnace, TV with Sat receiver. Which showed 27.37 amp hours per hour with those power draws. No microwave or other night power draw. Water heater was on propane.
1/6/20 9:19 PM -169 -167.5 -27.37
From 9PM bedtime to 6:30 am we used 193 amp hours at 21.05 amp hours per hour.
1/7/20 6:29 AM -362 -193 -21.05
We moved out and the rest of the information was only powering the refrigerator.
1/7/20 8:21 AM -402 -40 -21.33
I did not take a reading at 10 am when we left the service shop however my solar 1300 watts did not get much sun so it ran the inverter powering the refrigerator and put 26.8 amp hours back into the batteries averaging 4.21 amp hours per hour.
1/7/20 2:43 PM -375.2 +26.8 +4.21
I hope this helps people understand the battery impact the residential refrigerator has. I can add more details on equipment if desired. Note the 3 - 9 pm time was using the Magnum 3012 inverter. The rest of the time was using the Magnum 1000 which ONLY powers the refrigerator.
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