Do You Need a Dash Cam for Your EV?

A dashcam is worth having in any car, and an electric vehicle is no different. EVs are often parked in urban areas for longer stretches while they charge, which makes parking mode an especially useful feature. Whether you need one depends on how and where you drive, but for most UK EV owners the answer is yes. Check the guides index for more advice on EV equipment and charging.

How does a dashcam connect in an electric car?

Most dashcams offer two connection methods: a simple plug into a 12V accessory socket or USB port, or a hardwired connection to the car's fuse box. The plug-in method is easy but means the camera only records when the ignition is on. Hardwiring allows the camera to draw a small amount of power with the car locked, which enables parking mode. In an EV this involves tapping into the 12V auxiliary battery rather than the main traction battery. Every EV still carries a small 12V system for accessories and low-voltage electronics, so the principle is the same as a petrol car, but the location and layout of the fuse box varies by model. Check your car's handbook or ask a fitting specialist before hardwiring.

What is parking mode and do you need it in an EV?

Parking mode keeps the dashcam active, or on standby, when the car is switched off and locked. It records a short clip when the camera detects a knock or movement near the car, which is useful evidence if someone clips your car in a car park or drives into it while you are charging at a public point. Some EVs have a built-in version of this through the manufacturer's own app and camera system, so check your car first. If your EV already monitors the car remotely with its own cameras, a dedicated dashcam's parking mode may be less critical. For cars without a built-in system, parking mode on a dashcam is a worthwhile addition, particularly if you park on busy streets or in shared car parks regularly.

What resolution and night vision should you look for?

For a dashcam to be useful as evidence, it needs to clearly capture number plates in various lighting conditions. Full HD resolution is the minimum worth considering. Higher resolutions give clearer images when zooming in on detail but use more storage space. Night vision quality varies considerably between models: look for cameras that use a wide aperture lens and a sensor designed for low light rather than relying solely on digital enhancement. EVs are often driven at dawn and dusk on commutes, so low-light performance matters. GPS is a useful addition as it logs speed and location alongside the footage, which can be relevant in an insurance situation. Loop recording, where the camera overwrites the oldest footage when the card is full, is a standard feature on almost all modern dashcams and essential for continuous protection.

Do some EVs already have built-in dashcam or sentry features?

Several manufacturers now include camera-based monitoring systems as standard or as an option. These systems use the car's existing exterior cameras to record while the vehicle is parked and notify the owner of any incidents via a smartphone app. The footage is stored on USB or internal storage. If your EV has this capability, it can reduce the need for a separate dashcam during parking hours, though the recording angles and quality vary by manufacturer. In that case, you might still choose to add a dashcam for active driving footage, particularly if the built-in system only activates when parked. Check your car's specification sheet or the manufacturer's app to understand exactly what is already covered.

Does a dashcam affect your car insurance?

Dashcam footage can support a claim by providing clear evidence of what happened, which may help resolve disputes more quickly. Some UK insurers look favourably on drivers who use dashcams and it is worth asking your own insurer directly whether it makes a difference to your premium or claims process. The effect varies between providers, so you should not assume a discount without checking. What is fairly consistent is that having footage available makes an at-fault determination easier for both sides, which speeds up the claims process and reduces the chance of a disputed outcome working against you. Contact your insurer for the details specific to your policy.

Where should you mount a dashcam in an EV?

Mount the front camera behind the rear-view mirror on the windscreen so it sits within the wiper's swept area and does not obstruct your view. In an EV this location is the same as any other car. The rear camera typically mounts on the inside of the rear windscreen, again within the wiper zone. Avoid placing cameras where they block sensors or cameras used by driver assistance systems, as this can interfere with automatic emergency braking or lane-keep assist. Check the DVSA guidance on windscreen obstructions if you are unsure whether your chosen position is legal, as a camera mounted in the wrong place can technically be considered an obstruction.

Frequently asked questions

Will hardwiring a dashcam drain my EV's 12V battery?

A dashcam in parking mode draws very little power from the 12V auxiliary battery, but if the car sits unused for many days it can gradually deplete it. Most quality dashcams include a low-voltage cut-off setting that stops drawing power below a set voltage threshold. Configure this correctly for your car model before relying on long-term parking mode use.

Can I use a dashcam that was fitted in my old petrol car?

Yes, in most cases. Dashcams are not specific to petrol or electric vehicles as they run off a 12V supply that both car types provide. You may need a different fuse tap for hardwiring depending on your new car's fuse box layout. The mount and power cable from your old car should be reusable if the connectors match.

Do dashcams interfere with EV charging?

A dashcam running in parking mode while your car is connected to a charger should not interfere with the charging process. The two systems are independent. The only consideration is ensuring the 12V auxiliary battery stays healthy, which is usually managed by the car's own battery management system when plugged in.

Is front-and-rear recording worth the extra cost?

For most urban drivers, yes. Rear-end collisions are among the most disputed types of incident because fault is not always obvious without footage. A rear camera removes that ambiguity. If you mainly drive on quiet rural roads with minimal traffic behind you, a front-only camera may be sufficient. For city driving and motorway commutes, two channels give significantly better protection.

What storage capacity do I need?

Capacity depends on resolution and how long you drive each day. A higher resolution camera uses more storage per hour. Most dashcam manufacturers specify how many hours of footage fit on common card sizes. For most commuters, a card in the mid-range is sufficient for a full day of driving plus overnight parking mode. Loop recording automatically manages the storage, so the card never fills permanently.

Do I need to tell my insurer I have a dashcam fitted?

You are not legally required to declare a dashcam to your insurer, but it is a good idea to mention it. Some policies include specific clauses about modifications or aftermarket equipment. Telling your insurer also means they know footage exists if you need to make a claim, which avoids any misunderstanding about the evidence available.

A dashcam is a straightforward, practical addition to any EV and pays for itself the first time you need the footage. For more advice on equipping your electric car, visit the EV guides index or use the cable finder to check you have the right charging setup for your car.