Reply to buying a used EV -- how to assess remaining battery life?

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[quote=Anonymous][quote=Anonymous]I'd like to buy a used EV for daily usage in the inner suburbs, for trips that are rarely more than 15 miles round-trip.

Suppose that a particular used [b]EV now has a range of 150 miles on a full charge[/b], and that the range when the car was new was 200 miles. So the battery has lost 25% of its capacity.

With this information, is there any way to make a guess as to the remaining lifetime of the battery? I only drive about 3K miles a year. Given this low mileage, would I even need to worry about battery life, assuming that the battery presently operates at 75% of its original capacity?

What kind of data is available that describes how rapidly (or slowly) EV batteries lose their storage capacity? Is the deterioration primarily a function of miles driven, or is it a function of years-since-production? Which of the two variables is the most important?[/quote]

Is that what the dash shows? That’s just an estimate based on a number of factors including how it was driven by the previous owner. For example, if the previous owner has been driving it on the interstate at 70 mph with the ac blasting, the estimated range will drop. If you start driving around town at 35 mph with a lot of coasting and stops the estimated range will increase. [/quote]

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