> In the context of 100 years of electric buses, 10 years is still quite new. No, If we were talking about the effects of some Tech in Human health I would agr

> In the context of 100 years of electric buses, 10 years is still quite new. No, If we were talking about the effects of some Tech in Human health I would agree with this sort of cautionary principle. In the context of electronics, lithium batteries are a 46BN dollar market. Modern manufacturing is producing billions of assemblies and power electronics with well known quality assurance, failure-modes, MTTF, etc. In the context of modern manufacturing processes and volume 10 years is an eternity.