Battery pack

摘要

The battery pack that recognizes operation voltage of a corresponding device according to a unique resistance of the connected device and sensed through a third external terminal of the battery pack, the battery pack having a plurality of cells that can be coupled in series or in parallel to be suitable for an operation voltage of the corresponding device. The battery pack can be sold to a consumer to enable the consumer to power a variety of different electrical appliances. Alternatively, the battery pack can be incorporated into a chassis of an electrical apparatus so that the battery pack can be sold to many different manufacturers of electrical appliances.

主权项

1. A battery pack arrangement, comprising:
a battery pack; and an electrical appliance powered by the battery pack and being connected to the battery pack via positive, negative and unique resistance terminals on the battery pack, the battery pack including:
a battery part including a plurality of battery cells and a plurality of switches, the plurality of switches varying an output voltage applied to the electrical appliance across the positive and negative terminals; anda control part connected to the battery part and to the electrical appliance, the control part determining the output voltage used by the electrical appliance based on a unique resistance voltage of the unique resistance terminal and electrically connecting the plurality of battery cells in one of parallel and series by controlling the switches based on the unique resistance voltage.