The Makita 40Vmax XGT Lithium-Ion Battery charges faster and works longer, giving you and your cordless tools unmatched performance and productivity to take on the most demanding applications. The XGT 4.0Ah Battery reaches a full charge in 45 minutes or less, so it spends more time working and less time sitting on the charger ● 144Wh Reaches full charge in 45 minutes ● Digital communication between the tool & battery for optimised performance ● Heavy duty cell casing significantly improves the batteries impact resistance ● Battery ventilation system maximises battery life ● Short circuit prevention structure protects terminals from dust and moisture ● 3-layer moisture protection shields cells from water ingress SPECIFICATIONS: ● Model: BL4040F ● Cell: Li-Ion ● Voltage(V): 40Vmax ● Capacity(Ah): 4 ● Energy capacity(Wh): 144 ● Charging time(min): 45 (Full charge) with DC40RA