The 56V 5.0Ah Lithium Ion Battery Pack is a high-quality power source for EGO Power+ tools, including models BA4200, BA2800T, and BA2240. With a powerful lithium-ion technology and a capacity of 5 Ah, this battery pack provides long-lasting performance for your tools, ensuring you have the power you need for any project. The ION brand is known for its reliability and durability, making this battery pack a dependable choice for your home and garden tools. AA-3-B