The battery for PANASONIC 21.6V 3.0Ah Li-Ion from CS Cameron Sino is a powerful tool battery specifically designed for use in various electric devices. With a voltage of 21 V and a capacity of 3 ampere-hours (Ah), this battery provides a reliable power source for a wide range of applications. The battery belongs to the category of Li-Ion batteries, known for their high energy density and long lifespan. The package includes a charger that allows for easy and efficient recharging of the battery. The battery is made from durable plastic, making it long-lasting and resistant to everyday wear and tear. With a single battery included, this product is a practical solution for anyone looking for a reliable power source for their tools. The use of high-quality materials and precise manufacturing ensures optimal performance and safety during operation.