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Reply to "buying a used EV -- how to assess remaining battery life?"
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[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 EV now has a range of 150 miles on a full charge, 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]
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