For purposes of this Annex, the following definitions apply:
Battery Cell. In a battery, a cell is a single energy or charge-storing unit within a pack of cells that form the battery. Each cell has a voltage rating that is combined with the other cells’ voltages to form the overall battery voltage rating.
Battery. One or more electrically connected cells, assembled in a single container having positive and negative terminals. A battery may include inter-cell connectors and protective and other devices.
Battery System. One or more electrically connected batteries that provide power to equipment. A battery system may include a charger, controlling circuitry and means for monitoring of battery temperature, battery state, and current as well as system testing and related functions.
Charged Battery. A battery that has been fully charged in accordance with the battery battery manufacturer’s instructions or as defined in the design documentation.
Serviced Battery. A battery fully prepared and maintained in accordance with the battery manufacturer’s instructions or as defined in the design documentation.
Service Life. The maximum combined storage and installed life of an undischarged cell or battery. Service life cannot be greater than shelf life and will be stated by the equipment manufacturer. The end of service life is indicated by a “replace-by” or expiration date. Service life is equivalent to useful life.
Shelf Life. The maximum period at which an undischarged cell or battery stored under standard conditions retains 80 percent of rated ampere-hour capacity. The cell/battery manufacturer specifies shelf life.
System. A combination of components, parts, and elements, which are interconnected to perform one or more functions.