Charging speeds explained: outlet, wall charger and Supercharger

Published Oct 22, 2026 · Updated Oct 22, 2026 · 4 min read · By VoltCoach

What the “miles per hour” numbers mean and how different chargers compare.

Charging speeds are often quoted as miles of range added per hour of charging. Here is how the common options compare, using Tesla's numbers.

At home

Standard 120 V outlet: about 2 to 3 miles of range per hour. Fine for light daily driving.
240 V outlet with a Mobile Connector: up to 30 miles per hour.
Wall Connector: up to 44 miles per hour.

The real speed depends on your circuit, the charger and the car. Model 3 and Model Y Rear-Wheel Drive top out at 30 miles per hour at home.

On the road

Tesla lists how much range a Supercharger can add in 15 minutes, at best: up to 162 miles for Model Y and 175 for Model 3. Real speeds depend on battery size and age, how full the battery is, and the temperature. Charging slows as the battery fills.

What this means for you

If you drive about 30 miles a day, an overnight charge on a 240 V outlet is more than enough.
Use Superchargers mainly for trips and plan to charge to around 80% to save time.
Charging at home overnight is often the cheapest option, especially with an off-peak rate.

This is a buyer’s guide, not a review. It explains what to look for using the sources below. VoltCoach has not tested these products. Some links may be affiliate links.

Sources

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