A battery device (10) comprises a housing (50) adapted to be attached to a controller (1) for operating a crane and to be powered by the battery device, a battery cell (40), and electronic circuitry (20) connected to the battery cell (40) and electrically ...

In one aspect of the invention, an engine speed control method used to control an output speed of an engine of a boom-type engineering machine during a boom action includes: detecting a load pressure of a hydraulic system and a moving speed of a boom; dete...

There is provided an apparatus, method, computer program product, and a kit and method for upgrading, an apparatus for moving cargo. A bus for transmission of electrical energy, at least one load connected to the bus, said at least one load configured to t...