Method for judging service life of primary battery
First Claim
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1. A method for judging a service life of a primary battery, the method comprising the steps of:
- discharging a primary battery at a given time;
measuring a primary battery'"'"'s voltage present at the time of discharge; and
comparing such measured voltage with a specified reference voltage, so that when the measured voltage is smaller than the reference voltage, the primary battery is judged to have reached the end of its service life.
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Abstract
A method for judging a service life of a primary battery is disclosed, in which, by using a battery pack having a built-in microcomputer, a primary lithium battery is discharged at a given time, a voltage of the primary lithium battery is measured at the time of discharge, and such measured voltage is compared with a specified reference voltage, so that when the measured voltage is less than the reference voltage, the primary lithium battery is judged to have reached the end of its service life. And, the given time is a periodic timing.
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Citations
12 Claims
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1. A method for judging a service life of a primary battery, the method comprising the steps of:
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discharging a primary battery at a given time; measuring a primary battery'"'"'s voltage present at the time of discharge; and comparing such measured voltage with a specified reference voltage, so that when the measured voltage is smaller than the reference voltage, the primary battery is judged to have reached the end of its service life. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification