Rolls-Royce says its all-electric aircraft 'is worlds fastest'

What got me most about this article is the ridiculous way RR described the power-pack:

"Roll-Royce said it also had the most power-dense propulsion battery pack ever assembled in aerospace with enough power to charge 7,500 phones."

Like that is a useful analogy, RR! Come on, we want minutes in the air with typical reserve!