Comparing Charging Speed: Is 11kW or 22kW the Faster Option?


Charging speed is one of the most important factors when considering an EV charger. But with so many different types of chargers on the market, it can be hard to know which one is right for you.

In this article, we’ll explain the differences between 11kW and 22kW charging speeds, as well as other factors that affect charging time. We’ll also offer tips for choosing the right charger for your needs.

Understanding the Basics: An 11kW charger delivers up to 16 amps on a single-phase power supply, while a 22kW charger provides up to 32 amps on a three-phase supply. Charging speeds are indicated in kW (kilowatts), which refers to how much energy is delivered per hour — not how fast the battery charges. For example, a 22kW charger will charge twice as fast as an 11kW unit because it delivers twice as much power over time.

The difference between 11kW and 22kW charging speeds is minimal, but it still matters. A 22kW charger will charge your EV about 30% faster than an 11kW unit. When you’re on the road for long stretches of time, every second counts. This is why you should consider buying a 22kW charger if your EV can support it. If your vehicle can’t accommodate a higher-output charger, there’s no need to worry — 11kW will work just fine.