BATTERY PACK, POWER TOOL AND BATTERY CHARGER
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United States of America Patent
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N/A
Issued Date -
Mar 5, 2015
app pub date -
Aug 13, 2014
filing date -
Aug 30, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A battery pack includes: a plus terminal and a minus terminal; a secondary battery; and a booster. The secondary battery has a rated voltage and is configured to output a battery voltage across the plus terminal and the minus terminal. A charging device and a discharging device are selectively connectable to the plus terminal and the minus terminal. The charging device charges the secondary battery. The discharging device performs a job with the battery voltage supplied from the secondary battery. The booster is configured to boost the battery voltage to a voltage greater than the rated voltage. The voltage boosted is used as a control voltage for either connecting the secondary battery to or disconnecting the secondary battery from the charging device or the discharging device.
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