Makita BL1850B-L - 18V 5.0Ah Lithium Battery with Charge Indicator

Fuel gauge indicator, displays charge remaining on battery in four stages
Built-in memory chip communicates the usage history with the charger
Built-in shock absorbers protect the cells from job site conditions
High energy cells pack more power per cell to reduce the number of cells and overall weight
Large release button for easy removal from the tool
Built-in air vents and wall cools the battery cells evenly whilst blocking damaging debris
16 contact terminals provide consistent power and firm hold in any environment