Dyson V8 Replacement Battery - Overclockers UK Forums

16 Jun.,2025

 

Dyson V8 Replacement Battery - Overclockers UK Forums

Has anyone had any luck with the non branded Dyson batteries?

I bought the one below in Feb 21, however it failed in around 5 months, and has now failed again. They state a 3yr warranty so i'm happy to just keep getting a replacement but it is a little annoying.

https://www.ebay.co.uk/itm/


Obviously one answer is to just get an official Dyson one, but the cost is madness, considering the cost of 3ah batteries for other tools from the likes of Dewalt etc and the fact they also seem to fail fairly regularly and only have a 1yr warranty.

Has anyone bought a non genuine part and had it last a decent amount of time? I ended up buying a morpilot one from amazon after recommendations in the above thread. I just went for the highest reviewed one. It came with free filters, which was a bonus.

I can't believe the difference actually. I presume Dyson must throttle power when the battery is on its way out, as it is definitely more powerful now. It can also vacuum the house now with plenty of charge left.

V8 Battery - unacceptably short battery life? - Dyson Community

Really disappointed with Dyson.  V8 battery only lasted 2 years, and previous V8 battery also only lasted 2 years too.  Is having to buy a new battery the only option?  I had hoped Dyson would replace, or at least contribute to a replacement but they didn’t.  

If you want to learn more, please visit our website semitech.

Can this be right?  There are consumer rights that determine products should last a ‘reasonable length of time’, and I don’t think 2 years is reasonable for a product that costs over £300.  All the published information by Dyson shows that batteries will inevitably have reduced performance over a long period of time, but this is a 75%+ reduction in only 2 years.

Does anybody have any advice?  Can Dyson help?

Hi @ShelleyHartley,

Welcome to the Dyson Community, and thank you for letting us know about this.

We’re sorry you've been disappointed with the life of the battery on your Dyson V8 vacuum. The battery pack is covered for the duration of our free 2-year Dyson guarantee. Outside of this timeframe, replacement parts including the battery would be chargeable.

It's not possible for us to specify an exact lifespan for any component, including the battery pack, as this depends on how each individual machine is used, maintained and stored. As with any battery, our battery packs are subject to normal degradation over their working life. You can find some tips on preserving battery life here.

Are you interested in learning more about Battery Replacement For Dyson V8? Contact us today to secure an expert consultation!

If you’d like to discuss this further, you'll need to continue your conversation directly with our UK Customer Care experts.

The quickest way to get in touch is to visit Dyson.co.uk and click the round purple button to launch the Dyson Digital Assistant. Then click the agent icon in the bottom left corner of the chat window to start a live chat conversation with our Customer Care team.

Hello Jack

A pretty standard response, as I expected.

The community will make their own opinion.  I wouldn’t be surprised if many others have a similar story and feel it unacceptable to need to buy a new battery every two to three years.  The truth is I have many battery appliances, know how to care for batteries, and Dyson falls short by a long way.  Having such a short life makes true annual cost of ownership too high, and Dyson over sell their battery endurance.  Consumer rights protect against goods that don’t last a reasonable amount of time, the two years is not relevant.  Poor show Dyson, a shame you don’t get behind your product and instead hide behind quoted warranty periods and don’t support your customers.  
Things can only change if others come forward on the forums!

I am experiencing similar short battery life with the V8.   Unfortunately, it is several months out of warranty.   I had a similar experience with the V10 model.   It also experienced very short run time just outside of the warranty period.

I should have learned from my experience with the V10 and purchased a different product rather than another Dyson.   I won’t make that mistake again.   Now I have to shell out more money to replace the battery.

For more information, please visit Dyson v10 Replacement Battery.