The 5 Most Common Charging Mistakes First-Time EV Renters Make

Which Connector Should You Use?

Different EVs use different connectors, and the rental company probably didn't tell you which one yours needs. You pull up to a charging station, see three or four different plugs hanging from the unit, and have no idea which one fits your car. This is the single most common moment of confusion for first-time EV renters.

In Europe, most EVs use a Type 2 connector for slower AC charging and CCS (Combined Charging System) for fast DC charging. CCS is the most common fast charging standard in Europe and North America. In North America, newer vehicles are increasingly adopting NACS (the Tesla connector standard), while older models typically use CCS1. A few older Japanese models still use CHAdeMO, though this is becoming rare.

The practical fix is simple: before you leave the rental lot, walk to the charge port and look at the shape of the inlet. Take a photo of it. Check the rental paperwork or the car's infotainment screen for the connector type. If none of that helps, search the car's make and model online. It takes two minutes and saves you a frustrating guessing game at the charger.

One more thing. Even if you find the right plug, some connectors need to be inserted firmly until they click. If the charger doesn't start, push the connector in a little harder. It is not as delicate as it looks.

Why Should You Not Fast Charge to 100%?

This one catches nearly everyone. You plug in at a fast charger, see the battery climbing quickly to 70%, and then it slows to a crawl. You wait. And wait. The last 20% takes almost as long as the first 60%.

This is not a broken charger. Every EV deliberately slows down charging after about 80% to protect the battery. The battery management system reduces power to prevent overheating and long-term degradation. On a fast charger, the time difference is dramatic. Charging from 10% to 80% might take 25 minutes. Getting from 80% to 100% can take another 25 to 30 minutes on top of that.

For a rental, stop at 80% unless you truly need every last kilometer of range. You will spend far less time at chargers this way. For a deeper look at why this happens and when 100% actually makes sense, see our guide on why EV charging slows down after 80%.

Why Do You Need a Charging App Ready Before You Drive?

Many public chargers do not accept contactless credit or debit cards. To start a session, you often need a specific app for that charging network, or an RFID card you don't have. Some chargers require you to create an account, add a payment method, and verify your email before you can plug in. Standing in a parking lot with 15% battery while downloading an app and waiting for a verification email is not a great experience.

The situation is improving. More chargers, especially newer ones, are adding contactless payment terminals. But coverage is uneven. In some regions, app-only chargers are still the norm.

Before you pick up the rental, check which charging networks operate in the area you'll be driving. Download one or two of the major apps and set up your payment method. Ask the rental company which networks they recommend. Some rental companies provide a charging card or app access with the vehicle. A few minutes of preparation saves real stress when you actually need to charge.

What Happens If You Return an EV Rental with a Dead Battery?

With a petrol rental, you fill the tank before you drop the car off. With an EV rental, the return policy is often different, and the penalties can be steep. Some companies expect you to return the car with a minimum charge level (often 25% or more). Others charge a flat fee if you return it below a certain threshold. And a few will charge you a premium per-kWh rate to top it up themselves.

The problem is that many renters don't check the return policy until they're already on the way back. By then, finding a charger near the drop-off location and waiting for it to charge can throw off your entire schedule.

Read the return policy before you leave with the car. Note the minimum charge level. Plan your last charging stop so you arrive at the drop-off with enough battery and enough time. If the policy says 25%, aim for 30% to give yourself a buffer. Treat it the same way you'd plan a fuel stop before returning a petrol car.

What Should You Do When Something Goes Wrong at the Charger?

The charger displays an error code. The cable won't release. The session starts and immediately stops. The app says "transaction failed." You start wondering if you've broken a very expensive piece of equipment.

Here's the thing: these problems happen to experienced EV drivers all the time. Public chargers have reliability issues. Some are poorly maintained. Some have software bugs. Payment systems fail. Cables get stuck in cold weather. None of this means you did something wrong. It is almost always the charger, not you.

If a charger won't start, try unplugging and plugging back in. If that doesn't work, try a different charger at the same station. If the cable is stuck, check whether the car needs to be unlocked first (many EVs lock the cable during charging). If payment fails, try a different app or card. And if nothing works, move on to the next station. Most charging networks have a support phone number on the charger itself.

The worst thing you can do is assume you're doing it wrong and give up. Charger issues are a normal part of the EV experience right now, and every experienced driver has a story about a charger that just would not cooperate.

What Is the Bottom Line for First-Time EV Renters?

Renting an EV should not be stressful. Most of the confusion comes from things the rental company didn't explain and problems that have simple solutions. Check your connector before you leave the lot. Stop fast charging at 80%. Get your apps set up early. Know the return policy. And when the charger acts up, remember that it's probably not your fault.