What does backup power mean?

backup power meaning in Law Dictionary

generator that utilizes electrical energy or electric batteries to operate if the commercial energy head out.

backup power meaning in Business Dictionary

Electricity generator, or a bank of batteries, that may provide adequate capacity to operate critically essential gear until commercial energy is restored.

Sentence Examples with the word backup power

The sats would be on backup power right now, eliminating her chance of communicating without drawing the fire of the missiles.

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