Questions to Ask Before Buying an Electric Car

Buying an electric car is a bigger decision than swapping one petrol car for another, because your home setup and daily routine matter as much as the car itself. The right EV for one driver can be the wrong one for another, so before you sign anything, work through these questions carefully. Most issues that cause buyer regret come down to not thinking through charging practicalities before purchase. Use this checklist alongside a thorough look at which charging cables suit your car to make sure you're fully prepared from day one.

Do I have somewhere to charge at home?

This is the single most important question to settle before anything else. If you have off-street parking, a wallbox installed by a registered electrician transforms EV ownership: you plug in overnight and start each day with a full charge, typically at the cheapest rate your tariff offers. If you rely entirely on public chargers, running costs rise and convenience falls. It is still possible to own an EV without home charging, but it requires more planning and is better suited to drivers who live near reliable public charging infrastructure or who can charge at work.

What is my real daily mileage, and how does that compare to the car's real-world range?

Advertised range figures use the WLTP test cycle, which is the official standard but tends to be optimistic compared to everyday driving, especially on motorways or in cold weather. Before choosing a model, look up independent real-world range estimates rather than relying on the official figure alone. Compare the realistic range against your actual average daily mileage, not the occasional long trip. Most UK drivers cover far less per day than a modern EV can handle on a single charge, so range anxiety is often less of a problem than people expect once they've lived with the car for a few weeks.

What rapid charging standard does it use?

For day-to-day home charging, the connector standard matters less. On long journeys, though, it determines which rapid chargers you can use. Most new European-market EVs use CCS (Combined Charging System), which is now the dominant standard at UK motorway services. Some older models use CHAdeMO, which has fewer compatible chargers available. Tesla vehicles use their own connector but typically come with an adapter for CCS rapid chargers. Check which rapid charging standard your shortlisted car uses, and confirm it is well supported on the routes you drive most.

Also ask about the car's maximum rapid charging speed

A car that accepts a high-speed rapid charger will only charge as fast as its own hardware allows. Ask the dealer what the car's peak DC charging rate is, and how that translates into real-world charging time at a typical motorway rapid charger. This affects how long your coffee stop needs to be on a long journey.

What does the warranty cover, and for how long?

EV warranties typically come in two parts: the standard vehicle warranty and a separate battery warranty. The battery warranty usually runs longer than the vehicle warranty, and often guarantees a minimum state of health (a percentage of original capacity) over a set number of years or miles. Read the terms carefully. Find out what happens if your battery degrades below the guaranteed threshold, whether the whole pack is replaced or just affected modules, and whether the warranty is transferable if you sell the car before it expires.

What is the on-board charger speed, and is it enough for my needs?

AC charging at home or on public slow and fast chargers is limited by the car's on-board charger, not the charger itself. A wallbox or fast public charger may offer more power than the car can actually accept. Some EVs have relatively modest on-board charger ratings, meaning even a fast charger adds range more slowly than you might expect. If you regularly need to top up quickly during the day on public AC chargers, check the car's maximum AC charging rate and make sure it suits your routine.

What cable comes with the car, and what will I need to buy?

This catches buyers out more often than it should. Some manufacturers include a Type 2 to Type 2 charging cable for use with public charge points and wallboxes. Others include only a basic three-pin granny charger cable, or nothing at all. A granny charger is fine as an occasional backup but is too slow for regular daily charging. Before you finalise your purchase, confirm exactly what is included in the box, and budget for any Type 2 charging cables you may need. If you want a portable charger as a backup for travel, factor that in too.

Frequently asked questions

Should I ask about insurance costs before buying an electric car?

Yes, always get insurance quotes before committing. EV insurance varies significantly between models, trims, and insurers. Higher-spec or higher-performance variants often carry higher premiums. Get like-for-like quotes from several insurers using your own details before you sign, rather than relying on general guidance, as your personal circumstances make a big difference.

Can I tow a caravan or trailer with an electric car?

Some EVs have a manufacturer-approved tow bar option; many do not. Towing also reduces range considerably, so even if towing is technically possible, check the car's rated towing capacity and think carefully about whether the available range on a tow is practical for your journeys. Not all EV models are suitable for regular caravanning.

What is the difference between a battery warranty and a vehicle warranty?

The vehicle warranty covers mechanical and electrical faults in the car itself, similar to a petrol car warranty. The battery warranty is separate and usually runs for more years or miles. It typically guarantees the battery will retain a minimum percentage of its original capacity. Check both sets of terms carefully before buying.

Does it matter which charging network a car is compatible with?

Compatibility depends on the connector type rather than the network. Most UK public networks work with any car that has the matching connector. CCS is the dominant rapid charging standard, so cars supporting CCS have the widest access. Subscription or account requirements vary by network, but most now offer pay-as-you-go via contactless payment.

What questions should I ask about residual value?

Residual values for EVs have been more variable than for petrol cars as the market develops. Ask independent valuers, check what similar used models are selling for, and factor in how quickly the manufacturer releases updated versions. Battery health and remaining warranty also affect resale value. A used EV with a strong remaining battery warranty is generally easier to sell.

Do I need to arrange home charger installation before taking delivery?

It is worth starting the process early. Wallbox installation usually takes a few weeks to arrange through a certified installer, and some manufacturers or dealers can recommend approved installers. Check whether you need your landlord's permission if you rent. You can manage with a three-pin granny charger initially, but a wallbox makes the day-to-day experience significantly better.

Getting these questions answered before you sign means far fewer surprises once you're on the road. For a broader view of what EV life looks like day to day, browse our EV guides, and when you're ready to kit out your new car, use our home page to find the right charging cable for your make and model.