The Panasonic accessory EY9210B is a powerful tool battery with a voltage of 24 volts and a capacity of 3.0 ampere-hours (Ah). This Ni-MH battery is specifically designed for use in various power tools and provides a reliable energy source for demanding applications. The battery is compatible with a range of devices, including the model EY6813, ensuring efficient performance that meets the needs of professional users. The package includes both the battery and a charger, allowing for immediate use. The Ni-MH technology enhances energy efficiency and extends the battery's lifespan, while the 24-volt voltage delivers high performance for various applications. With this accessory from Panasonic, users receive a robust and reliable solution for their tools, suitable for both professional and private use.