Battery having lifetime indicator

Details Battery having lifetime indicator Battery having lifetime indicator

1992-01-21

1993-10-26

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

With measuring, testing, or indicating means

For charge or liquid level

429 91, 429 92, H01M 1048

Patent

active

052565009

ABSTRACT:
An battery comprises an battery unit and a life time indicator for indicating the life time of said battery unit. The life time indicator includes an indication element having a characteristic which indication of the indication element changes according to a voltage impressed onto the same. When voltage drop is caused in the battery unit, the indication of the indication element changes accordingly.

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Patent Abstracts of Japan, vol. 8, No. 99 (E-243), May 10, 1984, and JP-A-59-016-283, S. Sekido, et al., "Battery".
Patent Abstracts of Japan, vol. 10, No. 50 (E-384), Feb. 27, 1986, and JP-A-60-205-968, M. Akamatsu, "Discharge End Display Mark of Dry Battery".
Patent Abstracts of Japan, vol. 6, No. 234 (E-143), Nov. 20, 1982, and JP-A-57-134-869, S. Hidaka, "Power Supply".
Patent Abstracts of Japan, vol. 12, No. 493 (E-697) (3340), Dec. 22, 1988, and JP-A-63-205-065, Aug. 24, 1988, Y. Teranishi, "Storage Battery".

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