Forum Discussion
toedtoes
May 09, 2022Explorer III
StirCrazy wrote:DiploStrat wrote:
Our current vehicle has 800Ah of lithium iron and 600w of solar. Of course, we also have a bigger, two door refrigerator.
Historic data: We budget 30 wall clock minutes of power per meal; 15 minutes of microwave and 15 minutes of induction cooktop. At a guesstimated consumption of 150A, this works out to about 75Ah for a dinner. With a two door refrigerator, fans/heat, lights, etc., we are usually down about 125 - 135Ah overnight.
Lithium iron allows a lot more power in less space/weight, but we did this for years with lead acid AGM.
While I can apreaceate the ability to do this I am still amazed at how much power people use when there camping.. Maybe I am just the not normal one.
in my truck camper with the furnace running most of the time my AH consumption is about 35AH a day. in my 40 foot 5th wheel it is only up around 85 at 28 degrees F so running the furnace, letting the kids watch 1 movie a night and using my kureg in the morning and after supper and the odd microwave use.. popcorn... so your supper alone is almost my entire days use , but I am using propane not power, and same for my fridge and furnace..
I reciently upgraded to LFP batteries in the camper, and I am still playing to see what I can do with it but my rough capacity is 9 to 10 times my daily use, as I use it a lot in the real early spring and late fall when there is or could be snow on the ground still and we get a lot of overcast days so I want to be able to go untill the sun comes back out and can charge everything up again. I plan on switching the 5th over also , just watching for screaming sales again..
I guess my thought process is that by leaving the furnace, fridge, and stove on Propane, I can focus my power on the lights, furnace fan, pumps etc which maximizes the length of time I can go.. with the solar set up in the summer water and take capacity are my limiting factors now as I can go a couple months on the propane and I'll never run out of power with the solar panels..
My electric use is even less. I don't run an onboard furnace - I use a Mr Heater and a small canister of propane to take off the chill the few times it's necessary. Electric only runs the water pump, a light or two for 30-60 minutes a day max, and recharging a phone/kindle when needed. I run out of fresh water long before I run out of battery (no solar) or propane.
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