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The long-life version is designed to last up to 1.2 million miles, with a capacity of 600 kWh and a range of 310 miles on a single charge.
The long-range version extends the range up to 500 miles with a 1,000 kWh capacity
Not bad. Not bad at all. I wonder how they test battery degredation in an accelerated timeframe?
Batteries degrade with repeated charge cycles along a well-known curve:
By repeated charge/discharge cycles at higher voltages, they can map out the expected bend in the curve at standard voltages with a much smaller number of cycles.
