EV Charging Myths - Reviewed

Most of the confusion comes from treating every charger, every car and every plug as the same thing. They are not.

The short version

• Overnight charging is normal. You are usually topping up, not starting from empty.
• Rain is fine if the charger is certified.
• A 3-pin plug is for a pinch, not every night.
• Regular home charging does not wreck the battery.
• Chargers are not all the same.
• Home charging is usually cheaper per mile than petrol.

Myth 1: Charging an EV takes all night

The short answer. It depends on the charger and the car, and it is usually quicker than people expect.

What a normal charge looks like

• A 7.4 kW home charger adds about 30 miles of range an hour.
• Six to eight hours overnight is enough to take most cars from low to full.
• Most drivers top up a partly used battery. They do not start from empty.

If the supply can go faster

Where the house can support it, a 22 kW charger is faster still. Either way, charging is meant to fit the routine you already have.

Most people are topping up, not filling from empty. About 30 miles an hour on a 7.4 kW charger means overnight is plenty.

Myth 2: You cannot charge an EV in the rain

The short answer. Chargers and cars are built for the weather.

What they are tested for

They are tested for rain, frost and heavy snow. If there is a fault, they shut down. Charging in the rain is safe when you use a certified charger.

Myth 3: A 3-pin plug is as good as a wall charger

The short answer. A household plug can get you out of a pinch. It is not for every night.

Why it is a poor daily habit

It is slow, and using it every day raises safety concerns. A proper wall charger is faster, meets electrical regulations, and is safer for the house.

Myth 4: Charging will damage the battery

The short answer. The car already manages the battery while it charges.

Home charging and public rapid charging

The battery management system regulates temperature, cell health and charging speed. Regular home charging is safe, and it is often kinder to the battery than repeated ultra-fast public charging.

Myth 5: All EV chargers are the same

The short answer. The socket on the wall is only part of the difference.

What actually changes

• Some chargers are tethered. Some need the cable from the car.
• Smart chargers can use an app, show energy use, and work with off-peak tariffs or solar.
• Safety features differ too, including PEN fault detection, which can remove the need for an extra earth rod.

The right charger changes convenience, safety and what the install is worth later.

Myth 6: Charging costs more than petrol

The short answer. At home, charging is usually cheaper per mile than petrol or diesel.

Where the difference comes from

An off-peak EV tariff makes the gap wider. Home charging also cuts emissions. We have written separately about what a charge actually costs if you want the numbers.

If you are still unsure

We will talk you through what happens at your property, in plain terms, before you commit to anything.

Get a tailored quote and we will help you pick a charger that suits the house, the car and how you actually drive.