| 摘要 |
A housing of a battery pack contains in addition to standard power cell elements a voltage converter. The voltage converter is interposed between the power cell elements and external output contacts of the housing. The voltage converter regulates the output voltage applied to the output contacts of the battery pack, such that the supply voltage of the battery pack remains at a predetermined value which is independent of the voltage supplied by the power cell elements to the voltage converter and does not vary over the discharge cycle of the power cell elements. Excess battery voltage available particularly during the initial portion of the discharge cycle of the power cell elements is efficiently converted to the predetermined output voltage value which reduces the overall current delivered by the power cells to extend the useful life of the battery pack between charges.
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