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How Long Does a Dyson Battery Last?

Written by James Hall |

how long does a dyson battery last

How long can you expect a Dyson battery to last? And when should you replace a Dyson cordless battery? Keep reading to find out!

One of the downsides of a cordless vacuum is that they rely on a battery. In fact, it’s often the battery that develops issues first, which is why it’s important to buy a cordless vacuum with a reliable battery that’s easy to replace.

Fortunately, Dyson produce high-quality cordless vacuum batteries that compare favourably with many other brands. They also make it easy to order and replace your vacuum’s battery when needed. Let’s take a closer look at how long you can expect Dyson batteries to last.

How Long Does a Dyson Battery Last?

As a general rule, you can expect a Dyson battery to last anywhere from 2-6 years depending on how the battery is used and maintained.

Dyson’s 2-year guarantee covers the battery, so if the battery dies during this period they should replace it for free. If the battery needs to be replaced outside of the warranty then you’ll need to buy a new one.

What Affects Battery Lifetime?

In the section above, we said that Dyson batteries typically last from 2-6 years. Why such a big range?

Lithium-ion batteries provide excellent reliability and long-term use. But all batteries of this type suffer from degradation over time – and Dyson batteries are no exception.

Even though we know that batteries degrade, it’s not possible to give an exact number of years that a Dyson battery lasts. The speed at which a battery degrades depends on a variety of factors that aren’t necessarily in the manufacturer’s control.

Here are some examples of factors that can affect the lifetime of a lithium-ion battery:

  • Where and how the battery is stored. Lithium-ion batteries last longer when they are stored at room temperature. Very hot or cold locations cause the battery to age faster.
  • How often the high power mode is used. Over-using the high power mode on your Dyson cordless vacuum could reduce the battery’s lifespan. This issue is particularly common on older Dyson vacuums where the “Max” mode is more necessary for tough jobs, such as the V7 or V8, but is the case for all Dyson vacuum cleaners.
  • Whether the battery is allowed to run to empty occasionally. Dyson batteries don’t have a memory effect, so you don’t need to fully charge the battery each time. You should still run your battery to empty occasionally to ensure it lasts longer though.
  • Whether the battery is allowed to cool after a cleaning session before being recharged. Dyson recommends letting the battery and vacuum cool after you use it before plugging it back in.

How often you use the vacuum also affects the battery’s lifetime. If you’re a heavy user who recharges the vacuum multiple times per day, then you can expect the battery to last closer to two years. For light usage the battery will last a longer time.

Note: Dyson’s guarantee may be invalidated if you use third-party batteries. We only recommend using genuine Dyson batteries in your Dyson cordless.

How To Tell if Your Dyson Battery Needs To Be Replaced

There are two common signs that your Dyson’s battery needs to be replaced.

  1. The vacuum lasts for a noticeably shorter time than it did when you first bought it (in its regular suction mode.)
  2. The vacuum has a red light that flashes more than 12 times.

As we mentioned earlier, Dyson cordless vacuums come with a 2-year warranty that includes the battery. So, if your vacuum is still within the warranty period, you should be able to get a new one for free.

Make sure you’re using the regular suction mode to assess how long the vacuum lasts though. “Boost” or “Max” modes will greatly reduce the vacuum’s run-time, although the upside is that you get more suction power for stubborn dirt.

You may also want to read our guide to why Dyson vacuums might not charge, how to replace a Dyson V8 battery, or how to replace a Dyson V10 battery.

Tips for Getting a New Dyson Battery

If your Dyson battery needs to be replaced, make sure that you only buy a genuine Dyson component to avoid invalidating your warranty. You should also double-check your warranty, as you might be able to get a free replacement.

It’s also important to buy the right battery for your machine. Aside from the model of vacuum, some Dyson vacuums have a screw system while others click in. If you’re unsure, Dyson should be able to advise you on which battery to buy.

How Long Is a Dyson Vacuum’s Run-Time?

The length of time a Dyson battery can last on a single charge varies depending on which model you buy.

Here’s an overview of the maximum run-time without a motorised tool:

  • Dyson V7 – 30 minutes
  • Dyson V8 – 40 minutes
  • Dyson V10 – 60 minutes
  • Dyson V11 – 60 minutes
  • Dyson V15 – 60 minutes

As you can see, recent Dyson vacuums haven’t increased the maximum run-time beyond the 60-minute market. This doesn’t mean the batteries haven’t improved though. The newest Dyson cordless vacuums are able to generate a stronger suction for this length of time.

Keep in mind that using the Turbo mode has a big impact on run-time. Even the Dyson V15 only lasts 10 minutes on its highest suction setting! The Dyson V8 lasts as little as 5-minutes when you activate boost mode, so it’s important to use this setting sparingly.


Dyson batteries should last around 2-6 years before needing to be replaced. This wide range reflects the fact that how you care for and maintain the battery will affect how long it lasts.

If you want your vacuum’s battery to last longer, make sure it’s stored at room temperature. Extreme hot or cold temperatures will reduce the lifespan of the battery.

You should also occasionally run the battery to empty and avoid over-using the highest power mode. Save it for the toughest cleaning jobs!

Do you have any questions about how long a Dyson battery lasts? Or do you have a question about anything else related to Dyson cordless vacuum cleaners? Please let us know in the comments section below.

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