Abstract: In a method for predicting the electrical power an electrochemical energy store can output to a consumer, a processor device preferably processes at least one measurement from a plurality of measurements of the cell voltage depending on time in an information technological manner, said measurements being carried out previously on an electrochemical energy store of the same design which is subject to a plurality of discharges of the electrochemical energy store and has a power output that is constant over time and the measurements being stored in a digital memory device.

Abstract: A rechargeable battery pack and a method of managing operations of a rechargeable battery pack. Sensing elements are provided to sense and to generate analog signals representing battery parameters, and an analog-to-digital converter is used to convert those analog signals to digital signals. A processor uses those digital signals to perform various routines. The processor switches the analog-to-digital converter from a disabled state, in which the analog-to-digital conversions are not performed, to an abled state under defined conditions.

Abstract: A battery pack and a method of monitoring remaining capacity of a battery pack. With this method, two different procedures are used to estimate that remaining capacity. In a first procedure, data generated on the battery pack is used to estimate remaining battery capacity; and in the second procedure, data transmitted to the battery pack from a host device is used to estimate remaining battery capacity. The battery pack switches between these two procedures under defined conditions; and for example, with the preferred embodiment described in detail in the present specification, the battery pack switches from the first procedure to the second procedure when the battery current falls below a threshold value.