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Old 12-18-2016, 05:08 PM   #39 (permalink)
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The main point is that Tesla is already pushing the limits of charge rate at 120kW for a 400v battery via any reasonable cable/ connector a normal person could be expected to deal with. 1.2C is not too bad on a big Tesla but this would be 2C on a Bolt and 5C on Leaf which would cut the cycle life substantially. The Leaf doesn't even have liquid cooling in the pack and is limited to 50kW/ 2C. These are not hobby batteries with projected cycle lives of 300. I would really hope to get 2000, 80% cycles out of a $100,000 Tesla to 70% capacity.
800v packs are needed to charge at 300kW such as the upcoming Porsche Mission E but the motor winding insulation and the components in all of the the controllers get excedingly expensive and bulky.
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