One reviewer says their vacuum now runs “almost twice as long” thanks to this simple upgrade.

They were marketed as replacement batteries for cordless V6 Dyson vacuum cleaners, but they are not a Dyson or Dyson-authorized product. The battery manufacturer claims the battery packs are ...

The notice prompted Chief Financial Officer and the State Fire Marshal Jimmy Patronis to warn consumers against purchasing Amazon’s lithium-ion replacement battery packs for Dyson vacuum cleaners.

Next generation battery technology set to drive revolution in products' performance James Warrington is The Telegraph’s Media and Telecoms Editor. He writes about the fast-moving world of media, ...