Makita BL1860B 18V LXT Lithium-Ion 6.0 Ah Battery Integrated L.E.D. battery charge level indicator allows user to monitor battery charge Provides up to 2X more run time per charge compared to BL1830 Reaches full charge in 55 minutes or less Compatible only with Star Protection tools, indicated by the Star Symbol and/or Yellow Battery Receiver under the tool Battery delivers consistent power and run time in extreme temperatures, even in winter (-4F/-20C)