The BSL1840M accessory battery from Hikoki is a powerful tool battery designed for a variety of applications. With a voltage of 18 volts and a capacity of 4.0 ampere-hours (Ah), this lithium-ion battery provides a reliable power source for various electric tools. The Li-Ion technology ensures a long lifespan and consistent performance, enhancing efficiency during work. Weighing 600 grams, the battery is lightweight and easy to handle, making it convenient to use during operation. The BSL1840M is available as a single unit and is ideal for professional craftsmen as well as DIY enthusiasts who value quality and reliability. This battery is an excellent choice for anyone looking to equip their tools with a powerful and durable energy source.