So, when I got the opportunity to test out Dyson's V11 Torque Drive cord-free vacuum ... is labeled as "Dyson's most intelligent, powerful cordless vacuum." It boasts up to an hour of run time ...

As with the last few iterations of Dyson's flagship vac, you are promised 'up to 1 ... to drive. He also has about 400 vacuum cleaners, and is possibly the UK's leading expert on cordless vacuum ...