How to avoid the most common EV charging mistakes at public stations

Pulling into a public EV charger for the first time can feel a bit like using a fuel pump from another planet. Different plugs, apps, tariffs and etiquette rules can quickly turn a simple top-up into a stressful stop.

Most problems come from a few repeat mistakes that are easy to avoid once you know what to look out for. The tips below focus on real-world habits that help you charge more smoothly and protect your car and your wallet.

Check connector and power before you park

One of the most frustrating errors is parking at a charger your car cannot use. Not every station has every type of connector, and not every connector delivers the same power level, even at rapid sites.

Before you reverse into a bay, quickly confirm two things in your app or on the screen: the plug type your car needs and the maximum power the unit can provide. This saves time because you avoid plugging in to the wrong socket or a unit that is much slower than the next one along.

Avoid unnecessary fast charging

High power charging is convenient on longer trips, but using it for every short hop can cost you more money and is rarely needed. Many public DC stations are priced significantly higher per kWh than AC points or home charging.

Use rapid units when you genuinely need a quick turnaround, such as on motorway journeys. For shorter local travel, use slower AC posts or plan a longer stop at a lower power site, for example during shopping or a gym visit. This balances cost, convenience and long term energy use.

Do not arrive with an extremely low state of charge if you can avoid it

Running your car close to empty is stressful and can reduce your options. If a charger is busy, out of service or slower than expected, you may not have enough range to reach an alternative location comfortably.

Try to start looking for public charging when you are around 20 to 30 percent, especially in unfamiliar areas or in cold weather. This gives you some flexibility if you need to queue, drive to another site or use a slower connector than planned.

Set realistic expectations for charging time

Charging speed is often advertised as a maximum figure, but your actual rate will change during the session. It depends on your car, its temperature, your current charge level and the power available from the station.

A common mistake is to assume the peak number applies from 10 to 100 percent. In reality, most cars charge their quickest between roughly 10 and 60 or 70 percent, then gradually slow down to protect the system. Plan your stop around this efficient window instead of waiting for a full charge.

Do not block chargers after your session ends

Staying plugged in long after reaching your target charge is one of the main sources of frustration at public sites. Many networks now apply idle fees after a grace period, which can quickly make a session expensive.

When you start charging, set a reminder on your phone for the expected end time plus a small buffer. If your car or charging app can send notifications, enable them. Treat the charger like a shared resource: unplug, move your car and free the space as soon as you reasonably can.

Use the right cables and keep them off the ground

If you are using your own AC cable, match it to the unit and your car. Make sure it is rated for the current and connector type, and that it locks properly at both ends. An incorrect or damaged cable can interrupt the session or fail to start it at all.

Another frequent mistake is letting cables lie twisted under wheels or across walking areas. Lay the cable in a gentle curve, avoid sharp bends and keep it where pedestrians are less likely to trip. Coil it neatly before you drive away so it stays in good condition for next time.

Do not rely on a single app or payment method

Turning up at a new network and realising you cannot start the charger because of an account or payment issue is a common headache. Some locations still use RFID cards, others rely on apps, and some support contactless bank cards.

Before a longer trip, install at least one or two major charging apps that cover your region and check that your payment details are valid. If possible, carry a backup payment method or an RFID card from your main network. This reduces the risk of being stranded by a simple login or card error.

Check prices and session limits before you plug in

Public tariffs can vary widely, even within the same town. A quick look at the price per kWh and any connection fees helps you avoid bill shock, especially on rapid units or in city centres.

Some locations also limit session length or cut off charging after a certain time. This is common at busy urban hubs and supermarket car parks. Read any on-screen messages or nearby signs so you know how long you can stay and what it will cost if you go over the limit.

Respect queues and local etiquette

At popular sites, informal queues often form, especially where there are more cars than plugs. A frequent mistake is to skip the line because it is not clearly marked, which can lead to arguments and complaints.

If you arrive and see other EVs waiting, ask who is next or look for a note on dashboards. Some drivers use simple signs to show their order. When it is your turn, move in promptly so the site keeps working efficiently for everyone.

Know when to leave rather than fight a faulty unit

Sometimes a charger simply refuses to start, even after multiple attempts and support calls. Spending an hour fighting that one unit can stress you and delay your trip more than moving on.

If basic checks do not work (different connector, reboot from the screen, app restart) and support cannot resolve the issue quickly, consider driving to another location while you still have enough range. Saving a record of the failure helps networks improve, but your time and comfort matter more than forcing a particular unit to work.