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X-ray image inside the Dyson cordless vacuum to the battery

Maintain your battery. Maximize its life.

Dyson battery life is determined by multiple factors – like quality of maintenance and storage. It's not defined by a set number of years. So there are things you can do to keep your Dyson battery optimized and maximize its run time.

We give our batteries a hard time, so you can too

We give our batteries a hard time, so you can too

Tested again and again

Our batteries undergo over 2,000 hours of rigorous testing, to strike the delicate balance between energy density, power density and lifespan. The battery cells are uniquely capable – manufactured to meet our particular demands.


Safe management system

Our unique battery-saving trigger helps maximize run time – only using power when you need it. It ensures the battery does not overheat or overcharge and catch fire.

Lightweight yet powerful

Our specially-tuned batteries are engineered from lithium-ion, a powerful and lightweight material – designed with high safety, power and energy in mind.

No memory effect

Some batteries are engineered with memory effect. So if you charge a battery for a short period of time, it may only hold a small amount of charge the next. With no memory effect, Dyson batteries are adaptable to their environment, regardless of their charge cycle.

X-ray image inside a Dyson cordless vacuum battery

Getting the best from your battery

We engineer vacuums that are simple to use and easy to look after. But batteries contain complex chemical structures that react to their environment. We've put together some tips that will help you to get the maximum life from your battery.

  • Use high power mode less

    Your vacuum is designed to be used in Auto or Normal mode for everyday cleaning. These can be found and changed at the top or back of your vacuum. Max or Boost modes are meant for powerful, intensive bursts of spot cleaning. Using them constantly speeds up degradation of the battery. If your machine has Eco mode, run time is maximized for a longer clean.

  • Avoid use in extreme heat temperatures

    Hot environments speed up battery aging. So it's best to avoid cleaning the car in hot weather or leaving your vacuum in rooms that experience direct sunlight for prolonged periods. The same goes for cold porches and garages in winter.

  • Store your vacuum at room temperature

    Heat sources, such as radiators, can damage the battery. We recommend that you store your vacuum at temperatures between 18°C–28°C, away from direct sunlight and out of utility closets.

  • Let it cool, but not too much

    You can preserve the life of your battery by letting your machine cool down after use – before connecting it back up to the dock to recharge.
    Your machine won’t operate or charge if the room temperature is below 37°F. This is designed to protect both the motor and battery.

  • Give it a break

    By letting the battery run down to empty at least once a month, you'll help to prolong its life. If you have a spare battery, we recommend you swap them out from time to time, so that they both have time to naturally discharge.



Does my Dyson 2-year warranty cover the battery?

Dyson offers a 2-year warranty on all cordless machines and parts, including the battery. If your machine is within its warranty period, we'll replace the battery for you free of charge. If you're an owner, log into My Dyson to see whether you are under warranty.

Can I buy a third party battery for my Dyson vacuum?

Dyson goes to great lengths to use the best battery technology. We perform significant safety checks and quality controls as part of the process. Only by using a genuine Dyson battery are you ensuring that your machine continues to work as intended, and that your warranty remains intact.

When should I use Boost / Max mode?

Boost and Max mode can be used for powerful, intensive bursts of spot cleaning. These modes affect the run time of your vacuum, so we encourage you to use them only on certain areas.

What shall I do with my old battery?

Dyson products are made from high grade recyclable materials. The battery should be removed from the machine before it's disposed of and recycled in accordance with local ordinances or regulations. If your battery needs replacing please call us at 844-705-4777 so that we can help you, or find a replacement online here.

How long is Dyson battery life?

Lithium-ion batteries are built to last, with energy and power packed into a small area. Over time, all batteries are subject to degradation. So if your run time has declined when the machine is not in Max / Boost mode, it might be time to buy a new battery. All our machines come with a 2-year initial warranty that includes the battery.

  • Skeleton diagram of the cogs inside a Dyson cordless vacuum


    If you have a problem with your machine and want to see if it relates to the battery, our step-by-step troubleshooting guide can help you get things working again.

  • Additional Dyson battery with three screws

    Buy a genuine additional battery

    Dyson goes to great lengths to use the best battery technology. We perform significant safety checks and quality controls as part of the process. Battery safety is important and we encourage you to buy only genuine Dyson batteries as replacements for your Dyson machine.