E90alex
Active Member
Yes, this is true. The indicated “mi/h” charge rate is based on EPA ratings so the number on the screen won’t vary based on driving, but in reality you won’t get the indicated miles of range after an hour of charging anyways since the EPA rating is unrealistic and unachievable in normal driving.This also varies with different drivers. If I add 1kWh to the battery (after accounting for ~5% charging losses) I know that on average I can drive 3.75 miles in my 2020 Long Range Tesla Model Y (assuming 11kWh added to the battery in an hour for 41.25 miles). Another Tesla Model Y owner might be able to drive just 3.25 miles (11kWh in an hour for 35.75 miles) and a third might be able to drive 4.00 miles (11kWh in an hour for 44 miles). It is the same 11kWh added to the battery after 1 hour of charging. Famously, your mileage may vary.
So it’s essentially useless other than being a relative measure of charging speed. “40 mi/h” charge rate is faster than “30 mi/h”. But that doesn’t mean you will actually be able to drive 40 or 30 miles after 1 hour of charging.