Are you talking about the Model Y battery? I think it is currently 75Kwh and gets 326 miles range on AWD. The Model 3 for 2021 has the 82Kwh battery and get 353 miles range.Official EPA estimates have been posted, and from those It appears to have a useable capacity 88 kWh. EPA range is 315 miles and efficiency is 28 kWh/100 miles, or 3.57 m/kWh. Do the math and you get 88. So how much bigger than that do you think the battery is?
The 74kWh number is correct for 2020 Model Y, it's on the build sheet sticker on the car.Y has the same battery pack as the Model 3. Out of Spec Motoring's range test estimates came back with 74kWh usable pack size and 270wh/mi at 70mph.
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