BATTERY CAPACITY DISPLAY FOR A POWER TOOL
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United States of America Patent
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Issued Date -
Dec 15, 2011
app pub date -
Jun 7, 2011
filing date -
Jun 9, 2010
priority date (Note) -
Abandoned
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Abstract
The present invention discloses a battery capacity display circuit for a power tool. The battery capacity display circuit has a first circuit module arranged in the battery pack of the power tool for detecting and displaying the battery capacity and a second circuit module arranged in the power tool for displaying the battery capacity. The battery capacity display also has an optical signal transmitting device and an optical signal receiving device to communicate with the first circuit module and the second circuit module.
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