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Abstract

A method of recovering and restoring the voltage in a zinc-air battery that has dropped below a first threshold. The method includes the steps of decoupling essentially all loads from the zinc-air battery and permitting the voltage to stabilize, sampling the voltage to determine if the voltage of the zinc-air battery is below a second predefined threshold, starting a timer and determining if the voltage has recovered to at least a third predefined threshold prior to the timing out of the timer, and periodically sampling the voltage to determine if the voltage has recovered to a voltage above a fourth predefined threshold for a sustained period of time, the periodic sampling being done if the zinc-air battery fell below the first predefined threshold but did not fall below the second predefined threshold, and upon determination that the voltage of the zinc-air battery has recovered to above the fourth predefined threshold, coupling the loads, previously decoupled from the battery, back to the battery.

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First Claim