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Old 06-27-2022, 08:00 AM   #1
Rivet Master

 
2021 30' Globetrotter
Oviedo , Florida
Join Date: Jun 2021
Posts: 1,296
Cheapo LiFePO4 Batteries.

Been running down the solar/Lithium battery rabbit hole both for the camper and home use lately. I know people have been sticking with the Battleborn Batteries but there seem to be some reasonable cheaper alternatives out there. Maybe old news to some here, but this guy's YouTube channel seems pretty good as he not only tests things but rips them apart to see what's on the inside. Here he pulls a Chins $379 battery apart and give his opinion on the construction and features.
https://youtu.be/xBonGQe363g

He also does a different video on a $279 battery (different manufacturer) which was pretty good as they are obviously selling used and "B-Grade" batteries in a unique case.
https://youtu.be/-albFj1Mqf0
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Old 06-28-2022, 05:57 AM   #2
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2008 27' International FB
Petaluma , California
Join Date: May 2011
Posts: 1,162
Images: 5
I bought a Chins 300AH smart battery and so far, so good after 9 months. Will's only ding on Chins is that the BMS doesn't shut down the charge circuit when below freezing. The battery I bought has an automatic heating element in it and I brought it inside so I'm not worried about it. I'm currently in the middle of a week dry camping on the Pacific Coast with 400W of solar and the 300AH Battery is running between 80 and 96 % charge even with coastal marine layer overcast. It's so nice not having to haul out the generator. I like the built in blue tooth IOS Apps to check on the battery and the over voltage protection seems to work well. The voltage over time image is another $30 gizmo that hangs across my battery terminals and keeps track of voltage over time and is not part of the Chins BMS. Your mileage may vary. The 300AH Smart battery was $1500 on Amazon - Brad
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Old 06-28-2022, 08:04 AM   #3
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1990 29' Excella
Carrollton , Virginia
Join Date: Feb 2022
Posts: 24
I bought the Weize 12V 100Ah and tested it for capacity between 14.4 and 10.8 in delivered 110 ah my draw was mostly a 30A I did try a few 150A loads for 30 sec intervals. Seem to work fine. Thought I buy a second when I get the wiring upgraded
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Old 06-29-2022, 09:05 AM   #4
Rivet Master

 
2021 30' Globetrotter
Oviedo , Florida
Join Date: Jun 2021
Posts: 1,296
I think I'm going to DIY some sort of backup system for the house and I'll probably start with something in the 100 AH range to keep the cost down. We've lost power for more than a day at my house due to hurricanes over the years maybe 4 or 5 times over the years. I think 10 days was the worst. My dream solar back up would keep a wall AC unit running overnight to keep our bedroom cool and our fridge running for several days without having to resort to the backup generator. I have not sized what that would require battery and panel wise, and of course it would make some assumptions about sunlight during stormy days. I'd defiantly go with off-brands for this use if I ever do it.
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