Quote:
Originally Posted by Choxnpinz
I apologize if this has been addressed in the past. I did a forum search and was inundated with hits, but none matched my situation. It's a rookie question, actually.
2018 Thor Chateau 31W Class-C. During the first year, it was in and out of the dealer repeatedly, and each time they left the house battery switch on, so invariably, they'd be dead as a door nail when I picked it up.
The two house batteries will only keep the residential fridge going for 10-hours before kicking the inverter offline. Other owners tell me it should be a lot more, even without solar.
I'm thinking of replacing the two 12v batteries with FOUR new ones (since the rack holds four). My question is: Does the charging system have any switches or adjustments that need to be made when going from two to four batteries, or does it just feed power to them until they're happy?
Eventually, I'd like to add solar and lithiums, but that's a whole other kettle of fish that I'll deal with when I can afford it. For now, I just need to know if there's anything I need to do aside from letting the system do its thing. Many thanks!! You guys rock!
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A 14 cubic foot residential fridge draws about 30 DC amps when running through an inverter so considering a 50% duty cycle you would use 150 AHs at 12 VDC over 10 hours. Probably close to normal depending on the size of your batteries.
But, more batteries will definitely last longer and the converter doesn't care if you have one or four batteries - it will supply the current to charge them until they are fully charged - it will just take longer.
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