The TreeNB GWL1820 6.0Ah 40V Lithium-Ion Battery is a powerful and long-lasting battery designed for various power tools. With a capacity of 6Ah, this battery provides reliable and consistent power for extended use. The lithium-ion technology ensures efficient performance and longer life compared to traditional batteries. The item is new and does not come in its original packaging, offering a cost-effective option for those in need of a high-quality replacement or spare battery.