Title:
A power tool provided with a battery capacity informing device and a battery capacity informing device
Document Type and Number:
Japanese Patent JP6115204
Kind Code:
B2
Abstract:
A battery meter (25) for use with a rechargeable battery (30) that supplies power to an electrical load. A voltage measurement unit (26) measures an inter-terminal voltage (Vt) of the rechargeable battery (30). An announcement unit (27) announces rechargeable battery remaining capacity information based on the measurement of the inter-terminal voltage. An announcement request switch (28) outputs an announcement request (SC) for requesting announcement of the remaining capacity information. The announcement unit announces the remaining capacity information when the announcement request is received during a period in which the electrical load is not supplied with power, and does not announce the remaining capacity information regardless of whether or not the announcement request is received during a period in which the electrical load is supplied with power.
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Inventors:
Masaaki Okada
Masaki Ikeda
Masaki Ikeda
Application Number:
JP2013049629A
Publication Date:
April 19, 2017
Filing Date:
March 12, 2013
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
G01R31/36; H01M10/48; H02J7/00; H01M50/247
Domestic Patent References:
| JP7016364U | ||||
| JP2007139549A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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