18V LXT 4 Ah Lithium-Ion Compact Battery and Rapid Charger Kit

The Makita 4 Ah Lithium-Ion Battery combines more run time – 35% more run time per charge than the Makita BL1830 battery – with a category-leading charge time of only 40 minutes, so it spends more time working and less time sitting on the charger. The Rapid Optimum Charger offers key advantages for Makita 18V Lithium-Ion cordless tool users.