A Beginner’s Guide to Wireless Charging (or is it really that easy?)

One of the biggest challenges EV owners (and considerers) face is charging. How many steps does it take to charge an EV?

From 13 steps to 6 steps. Less than half the effort to charge your vehicle. Why wouldn’t you want to charge wirelessly?

But, before you take the plunge, let’s find out what it’s all about.

First, what is wireless charging and how does it work?

Simply put, wireless charging (from WiTricity) uses magnetic resonance to charge your EV’s battery. By parking your car over the charging pad, your car immediately begins charging.

What is magnetic resonance?

In its simplest form, magnetic resonance works by creating a wireless transfer of energy between two coils, tuned to resonate at the same frequency. For your electric vehicle, one coil is on the underbelly of your vehicle while the other coil is on the ground – either in your garage, in a parking lot, or on the street (or even buried underground).

As you can see, wireless charging is much easier than plug-in charging, but many people ask if it’s as efficient?

In one word, yes. Wireless charging is just as efficient as a Level 2 plug-in charger. In fact, it’s likely you’re operating in the 20-80% state of charge (SOC) range that your battery likes (and is most efficient). With plug-in charging, it’s less likely that the 20-80% SOC range will be maintained since many drivers tend to forget to plug in. Some drivers even charge only once a week or drive all week and then plug in on the weekend. Not only is this less efficient, but it’s harder on the battery. With wireless charging, simply park and charge.

Want to know more? Visit www.witricity.com. Want wireless charging for your vehicle? Sign up for our WiTricity Halo™ beta program to upgrade your vehicle and tell your local dealer and EV manufacturer when purchasing your next EV.

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