Disclosed herein is a battery module including a plurality of plate-shaped battery cells mounted in a module case in a state in which the plate-shaped battery cells are sequentially stacked, wherein each of the plate-shaped battery cells includes an electr...

A voltage equalizer for battery elements for equalizing terminal voltages of a plurality of battery elements comprises an equalization processing circuit. The equalization processing circuit includes a transformer having basic windings. The basic windings ...

The forklift truck (2) has lifting forks (5) in front of the driver's seat. An accumulator battery block (1) is mounted under the driver's seat on rails so that it can be pulled out and taken away on a trolley (6). The trolley has forward-extending arms (7...

A method controls an electric vehicle which is so constituted as to drive a synchronous motor by way of a switch and an inverter circuit. A battery acts as a source of driving a controlling power. The synchronous motor has a permanent magnet acting as an o...