How Long Do Electric Car Batteries Last?

How Long Does The Battery Last? - Downtown Electrical

Electric vehicles aren’t just a more environmentally friendly way of driving, they can save you thousands of pounds a year in maintenance and running costs.

This is especially true when it comes to the cost of charging an electric car versus the cost of filling an unleaded or diesel vehicle.

We’ve all seen the cost of fuel rising over the past few months.

Electric cars are a big cost saver because they require less maintenance and the batteries are cheaper to charge.

But they do need some maintenance over the lifespan of the car and the battery.

Like any battery, the battery in an electric vehicle will deteriorate over-time as it’s depleted and recharged.

EV batteries are significantly more efficient than they used to be when the technology was in its early days, but if you’re going to invest in an electric vehicle it’s not unreasonable to ask how long your battery will last.

In this guide we’ll give you a quick introduction to the lifespan of an EV battery and the things that will help determine how long it lasts.


How long do EV batteries last?

Typically speaking you can get more than 100,000 miles out of an electric vehicle before you’ll start to notice any problems.

With an average of around 10,000 miles a year it means you can get nearly a decade out of your electric vehicle – and many electric vehicles and batteries can last much longer than this.

With an electric vehicle, like any battery powered device, the degradation of the battery life won’t necessarily impact the general performance of the car in terms of how it drives and handles.

What you’ll notice is you’ll have a lower travel distance in between charges – which will increase the charging costs.


What causes EV battery degradation?

While it’s a more advanced battery technology, EV batteries degrade under the same principle as any battery.

The more you use it, wear it down and charge it up again, the less efficient it will get over time.

But this also means you can use some general battery management to make your EV’s battery last longer.

One of the key things to consider is the level of charging it goes through.

Should you run the battery down to zero (or close to) and then charge it fully everytime?




Most manufacturers recommend you keep your electric car battery running between 20% and 80% for the majority of the time.

While occasionally charging to full, or letting your battery run below 20% won’t cause any real problems, regular overcharging or leaving the battery to run down will cause it to degrade quicker.

This is also why it’s not recommended to leave your electric car charging overnight regularly, as this can lead to overcharging and the quicker degradation of your battery.

As well as managing your battery charging, you should also consider how the way you drive your vehicle can impact the battery’s life.

Excessive accelerating and hard braking can lead to your battery running down faster between charges as well.


How to make your EV battery last longer.


The most effective way to make your EV battery last longer is to manage how often and how much you charge it.

Not allowing your battery to run low and not overcharging it regularly is the best way to manage the battery’s life.

This is why – as we’ve mentioned – most manufacturers recommend you keep your EV charged between 20% and 80%.

This is the same if you’re planning to leave your EV on the drive without using it for an extended period – like if you’re going on holiday.

In this case you should leave your electric car partly charged (between 50% and 80%)


What happens when the battery degrades beyond use?

At some point your electric car’s battery will degrade to the point it’s not viable to keep driving the car.

This is like any car.

What you’ll need to consider is that you might not be able to get the battery replaced as the technology is improving constantly.

Having said that, it’s not out of the question you could have the battery replaced and continue driving your existing vehicle.


Choosing the best EV charger to protect your car’s battery

When it comes to charging your EV’s battery optimally, it helps to have the best electric vehicle charger.

With the right charger installed at home or at the office, along with the smart software installed, you can better manage the charging of your electric car to keep it running at a high level without degrading the battery.

You can also manage your charging times to coincide with when utility prices are lower during the day so you can save even more money on your car charging.

For information on the best EV charger you should install, get in touch

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