Elevate your DIY toolkit with the BOSCH Professional 18v 4.0ah Lithium-ion Battery, a robust power source designed for endurance and efficiency. Bosch's commitment to quality is evident in this 4 Ah battery, which promises long-lasting performance for all your power tool needs. Its 18 V output ensures ample power to tackle a variety of tasks without the constant need for recharging. Crafted to fit seamlessly with your existing Bosch equipment, this battery's lithium-ion technology provides a high rate of power retention and is significantly lighter than traditional NiCad batteries, making it ideal for both home DIY projects and professional use. The sleek black design is not only stylish but also durable, ensuring it can withstand the rigours of frequent use.