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Li vs 6v

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cptqueeg

RVF Supporter
Joined
Nov 15, 2023
Messages
4
Location
Central Idaho
RV Year
2023
RV Make
Four Wheel Camper
RV Model
Grandby - shell model
Chassis
Chev 3500 Silverado LT
Engine
6.6L diesel
Fulltimer
No
Planning a new electrical system for a Peak Mtn Camp trailer w 18' of interior living space so weight is not a primary limiting factor. I'd like to know what your thoughts on choosing btwn lead acid(6v) and Li. We almost never have 100v available at a camp site. I think 400 Ah useable would be adequate to get the job done w some spare capacity, but perhaps 500Ah useable would insure no issues.

I'll have a 3000w inverter, lots of solar and a DC-DC charger as part of the system. My main electrical needs are making a kettle of boiling water and a couple of pots of coffee in the percolator on 110v, microwave, running 1 or 2 12v freezer/refrigerators (Iceco - 65qts), 50 gal gray water tank heater, LED lighting, propane furnace (backup heat), 2 fantastic fans, the normal device charging, and CPAP.

My current setup now is 200Ah of Li and it does suffer a meltdown during the summer w both iceco's running hard and the kettle and coffee pot if the truck doesn't run on a daily basis. This past October it performed flawlessly at 25-50°F ambient temps w little demand from the ice chests.

We've just about given up on summer camping for various reasons, so we'll primarily be facing cold or winter conditions at altitude w limited or no solar, perhaps for several days running. In some camps I could possibly run a generator but would rather avoid that.

Thanks
 

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