Types of Electric Vehicle (EV) Chargers Explained

Table of Contents

1. EV Charger Types by Speed
2. 7kW Home EV Charger Installation
3. 22kW EV Charger Installation
4. Tethered vs Untethered EV Charger Installation
5. EV Charger Connector Types
6. Can All EVs Use Any Charger?
7. Which Type of EV Charger Is Right for You?
8. Getting Your Home EV Charger Installed
9. FAQs: Types of EV Chargers

With tethered, untethered, smart, and rapid options all on the market, choosing the right charger is easier once you know what each one actually does - this guide breaks it down clearly.

Types of EV Charger by Charging Speed

The most important difference between EV charger types isn't the brand or the design, it's the speed. Charging speed is measured in kilowatts (kW), and the higher the number, the faster your car charges.

Here's how the main types stack up:

Charger Type	Time to Charge (from empty)
Standard socket (three-pin plug)	25-30 hours
Home wallbox	6-8 hours
Fast public charger	~3 hours
Rapid public charger	~40 mins to 80%
Ultra-rapid public charger	~20 mins to 80%

A few things worth understanding before we go deeper.

Charge times above are approximate and assume a mid-size EV battery of around 60-75kWh. Larger batteries take longer; smaller ones charge faster. The times also assume you're charging from near-empty - in practice, most EV drivers top up regularly rather than running the battery all the way down, so overnight home charging is usually more than enough for daily use.

Rapid and ultra-rapid chargers slow down for the final 20% of charge to protect the long-term health of the battery. So while a 50kW charger might get you to 80% in around 40 minutes, that last stretch takes considerably longer. This is normal and by design, not a fault with the charger or the car.

It's also worth knowing that the speed you actually get depends on your car as much as the charger. Every EV has a maximum charge rate, and plugging into a faster charger won't exceed it.

A car limited to 7kW AC charging will charge at 7kW whether it's plugged into a 7kW wallbox or a 22kW public charger. More on that in the section on maximum charge rates below.

3kW: Standard Home Socket

Every EV comes with a cable that lets you charge from a standard three-pin plug. It works - but it's painfully slow, and it wasn't designed for regular use.

A standard socket isn't built to handle the sustained power draw of overnight EV charging, and using one regularly raises the risk of overheating over time. Think of it as an emergency backup, not a charging solution.

7kW: Home EV Charger (Wallbox)

This is the one most homeowners install, and for good reason. A 7kW wallbox charges most EVs from near-empty overnight in 6 to 8 hours, so you plug in before bed and wake up with a full battery. It runs on standard single-phase electricity, which means no expensive grid upgrades, and installation typically takes just a few hours.

22kW: Fast Public Charger

You'll find 22kW chargers in public car parks, supermarkets, and leisure centres - places where you might leave your car for an hour or two. They charge around three times faster than a home wallbox, bringing most EVs from empty to full in roughly 3 hours.

It's technically possible to install a 22kW charger at home, but it requires upgrading to a three-phase electricity supply, a significant piece of work that costs from around £3,500 upwards, and often considerably more depending on your property, and requires approval from your local Distribution Network Operator (DNO). For almost all homeowners, a 7kW wallbox is the right choice.

50kW: Rapid Public Charger

Rapid chargers are the go-to for long motorway journeys. They charge to 80% in around 40 minutes - the reason they stop at 80% is to protect the battery.

Charging slows significantly in the final 20% to prevent heat damage and preserve long-term battery health. Rapid chargers use DC (direct current) rather than AC, bypassing the car's onboard charger entirely for faster delivery.

150-350kW: Ultra-Rapid Public Charger

Ultra-rapid chargers are increasingly common at purpose-built charging hubs and motorway stops. They can theoretically deliver a charge to 80% in around 20 minutes, but the catch is that very few EVs on the road today can actually accept power at that rate.

A car's maximum charge rate is set by the vehicle, not the charger. If your car can only accept 50kW, plugging into a 350kW charger won't make it charge any faster.

7kW Home EV Charger Installation: A Popular Choice

For the vast majority of UK homeowners, a 7kW wallbox is the right choice, and it's by far the most common type of home EV charger installed in the UK today.

Here's why it works so well as a home charger. A standard EV with a 60-75kWh battery needs roughly 6 to 8 hours to charge from near-empty. Plug in when you get home in the evening and it's full by morning.

A 7kW charger works with standard single-phase electricity, which is what virtually all UK homes have. No expensive electrical upgrades, no special permissions from your network operator, just a dedicated circuit from your consumer unit to the charger on the wall.

What a 7kW home charger installation typically involves:

• A qualified electrician mounts the unit on an external wall, in a garage, or on a suitable structure near your parking space
• A dedicated circuit is run from your consumer unit to the charger
• The unit is connected and tested, and an Electrical Installation Certificate is issued
• The whole job usually takes 2 to 4 hours Installation costs for a 7kW home charger typically run between £800 and £1,200 in total, covering both the unit and the labour. If you're a renter or a flat owner, a government grant of up to £500 is available towards this cost but you must own an eligible electric vehicle to qualify. see our EV charger installation grant guide for the full details on eligibility and how to apply.

For a full walkthrough of what the installation process looks like from start to finish, see our guide to installing an EV charger at home.

Find an EV charger installer near you

22kW EV Charger Installation: A Faster Option But Requires Upgrades

A 22kW charger is three times faster than a standard home wallbox, but it comes with a significant catch that rules it out for most UK homeowners.

22kW charging requires three-phase electricity. The vast majority of UK homes run on single-phase, and upgrading to three-phase can cost from around £3,500 upwards, and often considerably more depending on your property, plus you need permission from your local Distribution Network Operator (DNO), which isn't guaranteed. In most residential areas, the local grid simply isn't set up to support widespread three-phase domestic connections.

You'll find 22kW chargers in public locations, car parks, supermarkets, retail parks, and some workplaces, where three-phase supply is already in place. They can top up most EVs from near-empty in around 3 hours, which makes them well-suited to longer stays like a full day of shopping or a day at the office.

Is a 22kW home charger ever worth it?

Occasionally. If you already have three-phase electricity (more common in rural properties, farm buildings, and some detached homes with large electrical loads), a 22kW charger becomes a realistic option.

But even then, a 7kW charger handles overnight home charging perfectly well, and the faster speed only makes a meaningful difference if you regularly need to charge during the day and need the car back quickly.

Note: For most homeowners, the 22kW question has a straightforward answer: stick with 7kW for home, and use public 22kW or rapid chargers on longer journeys.

Tethered vs Untethered EV Charger Installation

Once you've decided on a home wallbox, the next choice is whether to go tethered or untethered.

This is one of the most common questions people ask when booking a home charger installation and it comes down to personal preference more than anything technical.

Tethered chargers have a fixed cable permanently attached to the unit. You walk up, grab the cable, plug it into your car, and you're done. There's nothing to store, nothing to carry, and nothing to forget. For most households with a single EV, it's the most convenient option day-to-day.

The one thing to bear in mind is that the cable is fixed to a specific connector type. Most new EVs sold in the UK use a Type 2 connector, so a Type 2 tethered cable suits the majority of drivers. If you change cars in a few years and the new one uses a different connector, an electrician can swap the cable, it's a straightforward job, but it is an extra cost.

Untethered chargers have a socket on the unit but no fixed cable. You use whichever cable fits your car and store it when not charging, usually in the boot. This gives you more flexibility if you have two EVs with different connectors, or if you prefer the cleaner look of a unit without a cable hanging from it.

The trade-off is convenience. Having to retrieve the cable, plug it in at both ends, and store it again each time is a minor but real friction compared to a tethered setup.

Which should you choose? If you have one EV and want the easiest daily experience, go tethered. If you have multiple EVs, want maximum flexibility, or just prefer the look of a cable-free unit, untethered is the better fit.

EV Charger Connector Types

Alongside the charger itself, the connector, the bit that physically plugs into your car, varies depending on the charging speed and the age of the vehicle. Here's what you'll come across in the UK.

Connector	What It's Used For
Type 1 - 3kW-7kW	Older EVs and models built in Asia
Type 2 - 3kW-43kW	Standard connector for UK/European EVs
CHAdeMO - 25kW-100kW	Rapid charging, used by some Japanese EVs
CCS - 50kW-350kW	Rapid and ultra-rapid charging, common on modern EVs

• Type 2 is the connector you'll deal with most often. It's the standard for home wallboxes in the UK and the vast majority of new EVs sold here since around 2016. If you're getting a tethered home charger installed, a Type 2 cable is almost certainly the right choice.

• CCS (Combined Charging System) is the connector used for rapid and ultra-rapid public charging on most modern EVs. It physically combines the Type 2 connector with two additional DC pins below it. Your car either has a CCS port or it doesn't — this is worth checking before you buy an EV if fast public charging matters to you.

• CHAdeMO is less common now but still found on some Japanese EVs, including older Nissan Leaf models. It's only used for rapid DC charging, not for home wallboxes.

In practice, you don't need to memorise all of this. Your car's manual will tell you which connectors it supports, and public charging stations stock the right cables. For home charging, your installer will confirm the right connector type when they survey your property.

Can All EVs Use Any Charger?

Not quite. Every EV has a maximum charging rate, and connecting it to a faster charger doesn't change that. If your car has a maximum onboard charge rate of 7.4kW, plugging it into a 50kW rapid charger will still only deliver 7.4kW. The car's onboard charger acts as the limit, not the chargepoint.

This matters most for public rapid charging. Some older EVs have relatively low maximum charge rates that make rapid chargers far less useful. Before buying an EV, it's worth checking:

• Maximum AC charge rate: relevant for home wallboxes and public fast chargers
• Maximum DC charge rate: relevant for rapid and ultra-rapid public chargers
• Which connector types it supports: determines which public chargers it can use

Larger batteries mean more range between charges, but they also take longer to charge at home. Most drivers with a 7kW home charger and a battery in the 60–75kWh range will find overnight charging covers everything they need for everyday driving, with public chargers used only on longer trips.

Which Type of EV Charger Is Right for You?

To pull it all together, here's a straightforward guide based on your situation.

You're installing a home charger for everyday use

A 7kW tethered wallbox is the right choice for most people. It's fast enough to charge any mainstream EV overnight, works with standard single-phase electricity, and is the most convenient option for daily use. If you prefer flexibility or have two EVs, go untethered instead.

You drive long distances regularly and need fast top-ups on the road You'll be relying on public rapid chargers (50kW+) for longer journeys. Make sure your EV supports CCS rapid charging and has a competitive maximum DC charge rate before you buy.

You have three-phase electricity and want faster home charging

A 22kW home charger becomes viable. The speed advantage is real, though a 7kW charger still handles overnight charging perfectly well - so unless you have a specific need to charge faster at home, the additional cost and complexity may not be worth it.

You live in a flat or rented property

A 7kW home wallbox is still the right answer - and you may be eligible for the OZEV government grant if you own an eligible electric vehicle. See our EV charger installation requirements guide to check what your property needs before booking.

Getting Your Home EV Charger Installed

Whether you've decided on a tethered or untethered unit, 7kW is almost certainly the right speed for home use. The next step is finding a qualified electrician to install it.

Home EV charger installation is notifiable electrical work under Part P of the Building Regulations, it must be carried out by a registered electrician (NICEIC, NAPIT, or another government-approved competent person scheme) who can self-certify the job. If you want to claim the OZEV government grant, your installer also needs to be OZEV-registered.

You can find and compare available electricians in your area on MyBuilder. Post your job, hear back from those who are interested, and browse profiles and reviews before deciding who to contact.

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FAQs: Types of EV Chargers

What Is the Most Common Type of Home EV Charger in the UK?

The 7kW single-phase wallbox is by far the most common home EV charger in the UK. It works with standard household electricity, charges most EVs overnight, and is compatible with the OZEV government grant scheme. The majority of home installations use either a tethered or untethered version of this unit.

For a full breakdown of what the installation involves, see our guide to installing an EV charger at home.

Can I Install a 22kW Charger at Home?

Technically yes, but practically it's not viable for most households. A 22kW charger requires three-phase electricity, which most UK homes don't have - and upgrading to three-phase can cost from around £3,500 upwards, often significantly more. For the vast majority of homeowners, a 7kW charger handles overnight charging more than adequately without any electrical upgrades.

Which EV Charger Connector Do I Need?

For home charging in the UK, almost all modern EVs use a Type 2 connector. For rapid public charging, most new EVs use CCS. Your car's manual will confirm which connectors it supports. If you're getting a tethered home charger installed, your electrician will confirm the right connector type before the unit is ordered.

Does a Faster Charger Damage My EV Battery?

Not for standard home and fast charging speeds. EV batteries are designed to handle 7kW AC charging without issue. For rapid DC charging (50kW+), the car's battery management system automatically controls the charge rate and slows things down for the final 20% to protect long-term battery health.

Regularly using ultra-rapid chargers as your primary charging method can have a marginal effect on battery longevity over many years, but occasional use on long journeys is perfectly fine.

How Do I Find Someone to Install My Home EV Charger?

EV charger installation needs to be carried out by a registered electrician - someone on a government-approved competent person scheme such as NICEIC or NAPIT - and OZEV-registered if you want to claim the government grant.

Beyond those two boxes, it's worth looking at reviews from previous customers and checking that their quote covers everything: the unit, cabling, consumer unit connection, and the Electrical Installation Certificate.

You can find and compare available electricians in your area on MyBuilder. Post your job, hear back from those who are interested, and browse profiles and reviews before deciding who to get in touch with.