Makita BL1820B 18V Compact Lithium-Ion 2.0Ah Battery Integrated L.E.D. battery charge level indicator allows user to monitor battery charge Provides up to 50% more run time per charge compared to BL1815 Reaches full charge in 25 minutes or less Compatible with 18V LXT Tools Battery delivers consistent power and run time in extreme temperatures, even in winter (-4DegreeF/-20DegreeC)