Solar Questions
I'm interested in adding solar power and lithium batteries to our trailer, but I'm getting lost in the weeds. For starters I calculated what I think would be our worst case power need (without u...
Forum Discussion
BFL13 wrote:BeerBrewer wrote:
Unfortunately the amps that I used for each appliance came from the electrical load rating table in the manual for the trailer. I estimated the number of hours of use for each. For instance the manual claims the Frig uses 3 amps of DC power and 6 amps of AC. I assumed that when using propane there is no AC usage, but I was stuck with the DC. Since the frig runs for 24 hours per day that equated to 72 amp-hours and yet others have said that it uses only 17 to 20 amp-hours. So I TOTALLY agree with you that my numbers look high, but unfortunately I've got nothing else to go on. If you folks have more realistic numbers I'd appreciate it.
You numbers aren't that crazy. Your WH figure can come down, also the pump--you will run out of water pumping that much--take Navy showers.
Your 180AH minus ( fridge 72-17) 55 is 125 and minus 48 furnace is 77AH, which is like the 75 we use approx. Furnace is extra and it depends on ambients and rig insulation, etc.
Two 6s at 230AH down to 50% is 115 and you want 160 for two days of no furnace camping between generator recharging two hours( a 50-90 = 40% = 92AH) so you need an extra 45AH/2 = 22.5AH from solar daily to do that or else gen charge every day
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do you use a lot of inverter time? I even find your numbers high, living in Victoria camping for new years eve out at Jordan river I had the furnace running 24/7 couple hours of movies every night, water heater and fridge on propane and so on in a 39 foot 5th wheel and only used about 45ah/day and it was chilly and windy.
Steve
