Bosch Professional 18V 4.0Ah Battery and Charger Kit is a reliable cordless power-tool battery and charging solution designed for Bosch Professional 18V Li-Ion cordless tools. The kit provides dependable power for professional drilling, fastening, cutting, grinding and other job-site applications. The 4.0Ah battery offers extended runtime, while the compatible Bosch Professional charger provides convenient and efficient battery charging. Ideal for construction, installation, carpentry, electrical work, maintenance and professional workshop applications.