Bosch CORE18V® Advanced Power Battery, 18 V, 4 A, Lithium-Ion, 2 Batteries (GBA18V40-2PK)

CORE18V® Advanced Power BatteryLightweight solution – allows you to get the power and lose the weight in a compact batteryPower and runtime – delivers 2x the runtime and 60% more power compared to BAT612 18V 2 Ah batteryHigh-power lithium-ion cells – features a single layer of enhanced 21700 cells for greater battery efficiencyCutting-edge battery design – includes copper end plates, power rails and a flexible circuit board for reduced resistance and increased efficiencyBosch-Exclusive CoolPack™ 2.0 technology – cools the battery and helps provide longer battery lifetime compared to non-CoolPack™ Bosch 18V batteriesCompact operation – weighs only 1.10 Lbs. but provides power for standard to medium-duty applications, such as drilling into concrete, metal and wood; metal grinding; cutting and even light-duty chippingCharge-status indicator – features high resolution for clear visibilityCompatibility – engineered for 18V and compatible with Bosch 18V tools and chargersAMPShare™ System compatibility – 18V batteries and chargers are compatible with Bosch 18V power tools and a growing list of cordless products from AMPShare™ brands