What does it mean that the battery of Dyson vacuum cleaner has an agreement with the main engine?

Dyson applied for a patent for the connection between the battery of its vacuum cleaner and the main engine. The connection between the battery and the host of Dyson vacuum cleaner is protected by patent, and other manufacturers need authorization to produce and sell compatible batteries or hosts. Dyson vacuum cleaner adopts lithium-ion battery, and the connection between battery and host adopts patented technology, which can realize intelligent communication and data exchange between battery and host.