But the history of lithium-ion is thirty years long, and over that period, their price did drop by 99%: https://rmi.org/the-rise-of-batteries-in-six-charts-and

But the history of lithium-ion is thirty years long, and over that period, their price did drop by 99%: https://rmi.org/the-rise-of-batteries-in-six-charts-and-not-too-many-numbers https://rmi.org/the-rise-of-batteries-in-six-charts-and-not-... The drop has been a fairly steady exponential, so if you look at the last decade, of course most of the drop was early, since that's how exponentials work. As far as anyone can tell, the trend shows no sign of stopping anytime soon.