This, in my book, is an unknown. I though Tesla said batteries are getting better 10% a year / 18 months. And I'm sure replacing bad cells will be cheaper than

This, in my book, is an unknown. I though Tesla said batteries are getting better 10% a year / 18 months. And I'm sure replacing bad cells will be cheaper than the whole pack. Someone smart will make a machine that will help me test good cells from bad. Someone else will be ripping good cells out of junked cars. Someone else will be doing hire purchase on batteries - £200 a year, battery pack replaced every 2,000 charges? Something like that? Sounds fine to me.