69 - Old vs new LiFePO4 cells - summary of the 64 cell test

What are used LiFePO4 cells worth? Is it worth investing in them? And how do new cells bought on alibaba behave? In this video you will see the test results of all the cells I have purchased for my energy storage so far.
EBC-A40L battery tester: alii.pub/6mkmhq
RC3563 cell impedance meter: alli.pub/6n04g8
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