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EY9L51B57

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EY9L51B57

EY9L51B57

18V 4.2Ah Battery Pack

*High performance battery capacity
*Individual monitoring of battery cell voltage
*Over discharge prevention sensor
*Battery overheat protection sensor

EY9L51B57

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Features

18V 4.2Ah Li-ion battery pack offers long-lasting performance and reliable durability


High performance battery capacity


The 4.2Ah Li-ion battery packs are capable of approximately 27% more working capacity per charge than the previous model, meaning you can get the job done faster.



Individual monitoring of battery cell voltage


A sensor to ensure optimal discharge control, preventing both overcharging and over discharging, monitors each 3.6V segment.



Over discharge prevention sensor


A sensor works to prevent over discharging that can occur with the discharge of the battery until voltage falls below a minimum threshold (a problem that is common to lithium ion cells).



Battery overheat protection sensor


A temperature sensor cuts off power to the motor before the battery temperature rises to a harmful level and flashes a warning lamp on the tool’s control panel.



4.2Ah Li-ion Battery