I have just read through all 90 posts in this thread and found it interesting to follow the path I trod down eight years ago when I purchased my first LiFePO4 lithium house battery. Not a lot has changed. The price of reasonable quality cells has risen (not dropped as everyone expected) over that time. Time has proven that the prismatic cell constructed LiFePO4 cells we are using for house batteries are extremely safe and realistic life span if not abused could easily be 15 - 20 years.
However, the demand for the raw material to manufacture these cells has is increasing at an alarming rate with the huge demand for electric vehicles.
Our new van, all but ready to hit the road is our third with LiFePO4 house battery cells and I am confident that they will still be powering all my toys in 15 years or so when my age will probably fail me before my batteries.
Most of the reasons I chose to head down the lithium path eight years ago are still pretty much the reason I still use them and will never revert back to lead acid technology.
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2019 Elddis Supreme 860. 800 w solar 300 AH Lithium
2015 Jeep Grand Cherokee Diesel 8 Speed.