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Exactly, the battery question is what it is all about. I wonder if these Hertz cars will be tracked on Recurrent[0] so you can gauge their battery health

[0] recurrentauto.com, started friends of mine but otherwise no relation

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It should basically align with the mileage, if the battery management system is at all reasonable. Like a given battery should be about as healthy as any battery with the same mileage if you make the assumption that the battery management system works.

I'm not sure that's true - temperature is a big factor that's uncorrelated with mileage, as is how frequently the battery depletion beyond the optimal level. There may be other things - I don't own an EV yet so I'm not particularly current on it,

what is the incentive of an ev owner to use that site?

I think used car lots are the biggest users, per se - like a CarFax situation. I think a lot of the relevant data can be pulled off the car's monitoring post (i forget the acronym).

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