The present invention relates to a method and a device for ascertaining the electric power, provided by a battery and a generator, available in a motor-vehicle electrical system. To determine the available electric power, both a battery model and a generator model are provided, from which the battery reserve power and the generator reserve power may be ascertained. The total power available in the vehicle electrical system is finally determined from the battery reserve power and the generator reserve power.

 
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> Method and system for protection of a lithium-based multicell battery pack including a heat sink

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