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BYD vs CATL battery cells dissected: Xiaomi SU7 teardown reveals key differences
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Measurements recorded during the teardown showed the CATL cell to be heavier and less energy-dense than the FinDreams cell.
CATL cell is heavierBoth cells have a rated capacity of 186.7 Ah, but their physical dimensions and energy-density figures differ.
The CATL cell measured 213 mm long, 80 mm wide and 95 mm high, with a mass of 3.4 kg.
The CATL cell was 8 mm shorter than the FinDreams cell, but its dimensions gave it a wider cross-section.
One cell is not the packThe teardown involved a single CATL cell taken from a Xiaomi SU7 Standard Edition battery pack.