I think this is oretty Incredible. Interesting article. https://www.techspot.com/news/106156-eight-years-success-diy-power-system-using-over.html
Ingenious DIY setup powers home for 8 years with over 1,000 repurposed laptop batteries
"...One person has done just that, with a remarkable home charging system created by repurposing over a thousand used laptop batteries... running successfully for an astonishing eight years without a single battery replacement.. assembling them into packs, each designed to hold approximately 100Ah by carefully matching the number of cells and using copper wiring for efficient connections..."
Amazing! Like hearing about things like this. More of this stuff should make news other than crime and bad things. They all look like 18650 cells, the work to make those battery packs...wow! I counted 560 single cells in total, 80 cells in each bank(7 banks).