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ISO 12819:2009
M00001316
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ISO 12819:2009 Methods of evaluation of the battery life of a battery-powered watch
standard by International Organization for Standardization, 04/01/2009
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Full Description
ISO 12819:2009 specifies two methods for determining the battery life of a battery-powered watch and specifies the labelling to be used by the manufacturers or the distributors to inform the users.
According to the available information, either the theoretical battery life or the practical battery life must be calculated using the equations given in ISO 12819:2009.