A Dyson cordless vacuum does the same job as a corded vacuum — sucking up dirt and debris on your floors and other surfaces, such as furniture, and storing it in a bag or compartment. The difference is that a cordless vacuum does not have to be plugged into an electrical outlet to receive battery power.
Cordless vacuums have a limited power supply. When the battery charge is used up, the vacuum must be plugged back into its charger and allowed sufficient time to charge before further use. This makes it impractical for long vacuuming jobs.
Dyson DC35 Vacuum Battery Power Source
Cordless vacuum cleaners typically get their power from a vacuum battery source. These Dyson DC31 batteries are rechargeable, so that when the vacuum is not in use, it is plugged in to a battery charger. The charger, in turn, is plugged into an electrical outlet in your home. Thus, your vacuum is indirectly getting its charge from your home’s power supply, just like a corded vacuum. But, unlike corded vacuums, a cordless one holds the charge for later use.
Dyson Animal is a canister vacuum cleaner. Specifically made to pick up animal hair, the Dyson Animal maneuvers on a ball for greater ease of use.