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Question House batteries

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lostinfla

Professional nobody
RVF Supporter
Joined
Dec 19, 2019
Messages
645
RV Year
2016
RV Make
Newmar
RV Model
Dutch Star
RV Length
37
TOW/TOAD
2021 Willys
Currently have the 8 flooded batteries and was wondering, when it's time to replace, if I should go with lithium or just agm batteries. (No solar) We seldom boondock, but were stuck without power for a few days from the hurricane in SC, so I'm starting to think ahead. I have the magnum panel with SOC display but not sure it's compatible with lithium. Also, with lithium, I assume they are all 12v?
 
Depends on how much power you want and how much you want to spend. I had 6 six volt agms. One bad one pulled down the rest. Coulld barely get through the night with nothing on. I went with 3 Li 330AH batteries. I now lose about 1/2 % per hour under the same conditions. That is about 4 days to reach 50%. Hopefully, next year I can get the bigger inverter and be able to run the A/C on batteries. Wish I had room for one more. It should survive the paint shoo without going dead.😎

If you get agms, I would load test each battery before you drive off. All mine looked good on the volt meter, but, when I finally bought a load tester, found one battery’s voltage went to dead zero under load.
 

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