There will be more to be learnt about getting the best out of various lithium cells as well - like not charging them to 100% if you do not need to.
I note that Tesla and others have the depth of cycle and the charge cut-off voltages programmable, and offer an 8 year warranty ( reference) mainly by only filling to ~ 80% and avoiding deep discharge.
It may be that in a few years time there is a market in 2nd hand vehicle battery packs with life left in them,
There will be more to be learnt about getting the best out of various lithium cells as well - like not charging them to 100% if you do not need to.
I note that Tesla and others have the depth of cycle and the charge cut-off voltages programmable, and offer an 8 year warranty ( reference) mainly by only filling to ~ 80% and avoiding deep discharge.
It may be that in a few years time there is a market in 2nd hand vehicle battery packs with life left in them,