Makita BL1840B Lithium Battery, 18 V Battery, 4 Ah, 40 min Charging

The Makita 18 V LXT® Lithium-Ion battery charges faster and works longer than standard Lithium-Ion batteries, giving you and your cordless tools unmatched performance and productivity to take on the most demanding applications. The Makita 4 Ah battery combines more runtime (35% more runtime per charge than the Makita BL1830 battery) with a category-leading charge time of only 40 mins, so it spends more time working and less time sitting on the charger. For added convenience, it also features an LED charge level indicator to monitor battery charge. The 18 V LXT® 4.0Ah battery (BL1840) is compatible only with Star Protection tools, indicated by the Star Symbol™ and/or yellow battery receiver under the tool.