One reason that we’ve seen drivers hesitant to have an electric vehicle (EV) for their company car is the worry over the battery range, how long it will last, charging needs interrupting your travelling and other associated concerns.

Collectively these worries are called range anxiety, and because of the time it takes to charge and the lower number of charging points compared to fuel stations this is a problem that is entirely unique to EVs.

What is a Mileage Range?

The mileage range is simply how many miles an electric car can travel between charges.

Every EV and hybrid with a fully electric mode will have an advertised mileage range which is achievable based on testing conditions, which we look at below, but this range can be affected by a number of factors and might not realistically be achievable in your every day driving.


How Are Mileage Ranges Calculated?

EVs are tested under Worldwide harmonized Light-duty vehicles Test Procedure (WLTP) which is a universal measurement that is comparable across manufacturers and countries.

WLTP is also designed to be a more realistic measurement of real-world driving conditions and results compared to previous driving tests. These include driving in rural, urban and motorway scenarios at various speeds as well as a range of weather conditions and temperatures.

Although WLTP tests are done on all new vehicles, it’s important to note they aren’t all uniform and for EVs there are tests done at faster speeds as they use more energy at higher speed.

We advise looking at the WLTP range when deciding if a vehicle is suitable for your needs however you should keep in mind that though the figure will be more realistic it doesn’t cover all of the factors we explore below that might still have an effect.

Commonly Asked EV Range Questions

Which is the Right EV for Me?

Deciding on the right car can be a complicated process and we know that when it comes to EVs this has the added complexity of understanding the technology, mileage ranges and charging speeds. 

When looking at electric vehicles we recommend looking at these guides so that you know everything there is to know about how EVs work and what the impact of driving one could have on your life. 

You might consider a hybrid rather than a full EV as they may not be as much of an adjustment as a full EV. 

There are three key things we would suggest keeping in mind when looking at whether a model is the right one for you:

1. How will you manage charging?

2. Will it meet your daily mileage needs? 

3. Does it meet your other requirements (connectivity, number of seats, etc)?

You might also find this article interesting to read before making the decision on which EV is for you.

What is The Mileage Range of Each EV?

The range on an EV varies between manufacturer, model, and even spec line depending on their battery capacity. 

We've got this article on the EVs with the best range currently on the market if you want to look at ones with a longer range.

What Affects the Mileage Range of an EV?

There are a number of things that will impact your EV’s range and some of them you might not expect to have the impact they do.

Below is a list of the ten most common factors that affect the range of EV drivers today:

  1. Driving Style 
  2. Terrain 
  3. Road Type 
  4. Weather 
  5. Wind 
  6. Weight 
  7. Ancillary services 
  8. Tyres 
  9. Battery condition 
  10. Starting charge level 

Your Driving Style

The first, and perhaps most influential, of factors that we’ve listed above is your individual driving style. This is also one of the factors that you have some control over, and arguably the most control over.

Speeding up requires more power from the electric motor that controls the vehicle, and this in turn needs to draw more energy from the battery in order to do so. This reduces the overall amount of charge available in the battery and means that the range you can achieve before next needing to charge will be lower.

Similarly, faster speeds require more power than travelling at 10 or 20 miles slower would, which means that if you regularly speed, or drive mainly on high-speed roads, you might see the range be slightly lower than the WLTP one advertised. You might find adjusting to a softer and more gradual acceleration and slightly lower more consistent speed will help you get a larger range.

It’s not just accelerating that requires energy you also need more energy when you brake. Harsh and late braking requires you to stop quickly and so need more energy than a slower braking period would.

Also, if you brake harshly or late in the process then the EV is unable to utilise regenerative braking technology, which captures a lot of the energy that is usually lost during braking. This means not only do you use more energy when braking but you miss the opportunity to recapture some energy lost through other driving habits.

The Road Terrain You’re Travelling On

The type of area you’re driving in can have a pretty big impact on the range an EV offers.

Even a very gentle incline requires more energy to drive on than a flat or downhill road, so if you live in a particularly hilly area then this will reduce the range you get from the car or van.

Most EVs will recapture energy when going downhill through regenerative braking when you slow on the descent which will help reduce the overall impact of this though it won’t be to the same level as the power needed to go uphill.

There’s no way to avoid hills and little you can do to mitigate the impact uphill driving will have on your rage, but it’s another factor to keep in mind when looking at an electric model, especially if you live in an area with particularly rugged terrain.


The Type of Road You’re Driving On

As well as the terrain of the part of the country you are driving on the type of road it is can impact your range.

By road type we mean whether it is a B road, A road or motorway as well as whether the road’s design.

Faster speeds mean a higher energy demand which typically means that drivers who are regularly on dual carriageways or motorways where the average speed is higher and there is more acceleration which again needs more energy.

If you’re driving in towns with a lot of stop-start traffic you might also see an impact from the frequent braking and acceleration of the vehicle, which will mean you’ll have a slightly lower range compared to a journey where you travel consistently at the same speed.

Similarly, winding roads with a high speed limit, which are common in the British countryside, will usually see a lot of braking and then acceleration which will have the same impact on your range.


The Weather

It’s not something you initially think of having an impact on your car other than needing to use your windscreen wipers when it’s raining but the weather can actually have a pretty large impact on your vehicle.

Even in a petrol or diesel car your battery will be affected by the cold weather, as the cold inhibits the flow of electrons in the battery and so reduces the battery effectiveness and life span.  This is why you often find that even with your traditional combustion engine your battery is more likely to go flat in the winter.

Electric vehicles are usually more efficient than a combustion engine in their energy production, however this means that you do not get the same heat by-product that you do with a combustion engine which helps warm the engine and heat the interior. In an EV power will need to be dedicated towards heating and more power on activities such as clearing the windscreen.

EVs may also have a dedicated heating / cooling system for the battery to keep it at the optimum temperature no matter how warm or cold it is outside. This additional feature will require energy and so take it away from the mileage.

It’s not just the engine that might need to cool down on a hot day though, when the sun is out drivers are more likely to turn on the AC. This is another extra feature that uses power and so takes potential energy away from the electric motor and reduces your expected range. Alternatively, drivers might choose to open their windows for a fresh breeze. This can also have an impact on the mileage range as it adds additional drag on the vehicle and so you need more power to reach the same speed.


No matter what the temperature is wind can have a massive impact on your range. Even if you aren’t driving with the windows down the additional resistance on your vehicle on a particularly windy day means more power is needed to drive at your usual speeds, again reducing the range you can achieve between charges.

There’s little any of us can do about the weather but it’s an important thing to be aware of when you’re looking at a new EV for your next company car.

Vehicle Weight

As with all vehicles the heavier the load you are carrying the more energy that is required to make the vehicle move. With electric vehicles, this means that the heavier load you are carrying the more energy is needed and so the lower your range will be between charges.

You can’t always control the load of your vehicle, but where possible we advise reducing the weight of your vehicle through removing any excess load.

We also recommend keeping it in mind when you are travelling on a long trip, especially if you have a car full, as the range you achieve will be lower than your usual.

You should also be aware that your driving style will have a bigger impact on the range if the vehicle is heavier, as even more energy is needed with harsh acceleration and braking.


Using Ancillary Features

You might think of them as essential but features like:

  • The radio
  • Windscreen wipers
  • Heating
  • Air conditioning
  • Phone connectivity
  • Lights
  • Heated seats

Will use energy that is being allocated to the battery range, and so the more you use these features as you drive the less you will be able to travel between charges.

This difference will usually only be noticeable if there are other factors in play as well and it will usually only be a decrease of a few miles. As the impact is minimal we wouldn’t suggest altering your use of these features unless you find they are draining a lot of energy from the battery.

Tyre Condition

Although EVs don’t have as many components so have less general wear and tear on the vehicle one part they have equal wear to a petrol / diesel car is the tyres.

You should regularly check your tyres as good tyre condition helps avoid more wear on other parts of the vehicle, reduce the risk of an accident due to poor tread or a tyre bursting, and increases the efficiency of your vehicle – which means a larger range for an EV.  

EV Battery Condition

The condition of your battery has an impact on the power it can hold. Just like a traditional combustion engine vehicle the battery in an EV is affected by general aging as well as the numerous charge cycles it will go through can eventually lead to the energy it can store decreasing. However, due to the technology used in modern EVs this is not something that you will see have a massive impact on your available range, but we do think it’s important to bear in mind long term as you might see a small and gradual decrease over the years.

Beginning Charge Level

Depending on what your starting percentage is you might also spot a small difference in the mileage range you are able to achieve in the vehicle. The optimum range of charge in general is between 20 and 80 per cent, as frequently running your battery too low or

What’s a Realistic EV Range?

The range an EV is advertised with is achievable if you are very careful with your driving style and habits, the weight of goods and passengers you carry, the weather and roads you are driving on and the other factors listed above. We would realistically expect to achieve around 80 to 90 per cent of the advertised range without you needing to place restrictions on yourself or your vehicle to achieve the optimum range.

What Happens if Your Electric Car Battery Runs Out?

Just like a fuel gauge on a petrol or diesel car your EV will give you a mileage range and let you know when it is getting low on charge. You should pay attention to this and charge the vehicle as soon as you are able to before the battery runs flat. 

If your battery runs flat then you will need to contact your breakdown provider and ask for a flatbed truck to take you to the nearest charging station. Please note that EVs shouldn't be towed as this can damage the traction motors used in the regenerative braking process and as towing is often the default recovery method you will need to specify that a flatbed truck is needed for your EV. 

Wessex Fleet's Tips to Improve Your Electric Car's Range

1. Anticipate what's ahead - to try and avoid harsh braking where you'll lose power you are unable to recapture with regenerative braking. 

2. Slow down - travelling at higher speeds requires more power and so will use the battery power quicker than if you travelled a little slower.

3. Keep it light - if you have heavy items in the vehicle that aren't required for that journey then take them out. The heavier the car is the more power it will take to move it and the quicker your battery will deplete. 

4. Turn down the heat - reducing your use of the heating / air conditioning, radio and other ancillary features will stop them from using up battery power that could be used to extend your range by a few miles. 

5. Check your wheels - keeping the tyres in good condition will help keep the car in the best running condition and helps provide you with the best fuel economy, even in an EV. 

For more of our electric guides click here or head back to our driver homepage for all our other helpful content.


Contact Wessex Fleet