According to the company, the average battery capacity after 322 000 km differs by 12 percent from the initial capacity. The statement is very general, but there is a chart with Model S/Model X that it is a platform.
«Even after 200,000 miles of use, our batteries only lose an average of 12 % of its capacity», — according to the report, which the journalists of the edition 32cars.ru got acquainted with.
This is very interesting data, especially when compared to what the American company said earlier. In 2021 (Impact Report 2020), the company stated that battery capacity retention averages about 90 percent after 200 000 miles of use.
The new data represents a slightly worse result, but let remember that this is a very dynamic sample of data and some things are just rounded up. Conditions may vary (temperature, use of fast charging, number of vehicles sold in markets with more difficult conditions, etc.).
In any case, assuming a 12 percent loss, we can calculate a few things to get a general idea. For example, that 1% of battery capacity is lost every 26 816 km or 67 theoretical full charge cycles.
Tesla explains that it doesn expect too many battery replacements because in the United States cars are often disposed of after about 322 thousand km (in Europe it is 240 thousand km).
An electric vehicle that has lost some of its battery capacity can still be used by those for whom a reduced range is still sufficient.
Note that the two vehicles under study are equipped with cylindrical batteries (1865 format, NCA lithium-ion chemistry) supplied by Panasonic from Japan. The upgraded version of the vehicle has a new battery architecture but the same cell format.
«The performance of new chemicals (not yet shown here) may vary, and we plan to expand disclosure as only we'll have enough data — said the company.
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