This video (I hope) covers most of the main need-to-know info on lifepo4 cells, as well as some suggestions for extending the life of your cells. Towards the end, I cover an aspect of cell safety that I think relatively few touch on.

(Affilate Links Below)
Battery Cells:
1. https://s.click.aliexpress.com/e/_A5znrE (lishen)
2. https://s.click.aliexpress.com/e/_9HFYlE (lishen)
3. https://s.click.aliexpress.com/e/_A74Zvm (eve)