Bullet_point: ['Battery delivers consistent power and run time in extreme temperatures, even in winter (-4°F/-20°C)', 'Battery resists self-discharge and remains ready for use even after long periods of storage', 'Compatible only with Star Protection tools, indicated by the Star Symbol and/or Yellow Battery Receiver under the tool', 'Equipped with Star Protection Computer Controls to protect against overloading, over-discharging and over-heating', 'Impact-resistant outer case and shock-absorbing inner-liner are engineered to protect the battery', 'Integrated L.E.D. battery charge level indicator allows user to monitor battery charge', "Makita 18V Lithium-Ion is the world's largest cordless tool line-up powered by an 18V Lithium-Ion slide-style battery", 'Provides up to 2X more run time per charge compared to BL1830', 'Reaches full charge in 55 minutes or less', 'Sixteen contact terminals maintain a constant connection with the tool to help prevent power loss or fluctuation, even during high-vibration applications'] (Page 1)