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Electric Vehicles & Auto Tech

How long does it take to charge an electric car?

By Adam Neely
Quick answer: A home Level 2 charger adds about 25–40 miles of range per hour for an overnight full charge. Public DC fast chargers can add 100+ miles in 15–20 minutes,…

A home Level 2 charger adds about 25–40 miles of range per hour for an overnight full charge. Public DC fast chargers can add 100+ miles in 15–20 minutes,…

A home Level 2 charger adds about 25–40 miles of range per hour for an overnight full charge. Public DC fast chargers can add 100+ miles in 15–20 minutes, depending on the car and charger.

Why there is no single charging time

Charging time depends on the battery's size, the power the charger can deliver, and the most the car can accept. A battery charges faster at first and slows as it fills, which protects its health, and cold weather slows it further. That is why one car can take all night at home yet gain range quickly on a fast charger.

What to do, step by step

  1. Work out which charger you are using: a home outlet is slowest; a home Level 2 charger is the practical overnight option.
  2. Estimate by range per hour, about 25 to 40 miles on Level 2, not by a promised full-charge time.
  3. For daily driving, plug in at home and charge while you sleep.
  4. On a road trip, use a public DC fast charger, adding 100 or more miles in 15 to 20 minutes where the car allows it.
  5. Check your car's maximum charging rate before a trip; the car, not the charger, can be the limit.
Pro tip: On fast chargers, charging slows as the battery fills, so it is often faster to charge to 80 percent, drive, and stop again than to wait for a full battery.
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