This listing is for one used Dell 7WNW1 laptop battery. This battery is designed for use with Dell Latitude 7424, 5424, and 5420 Rugged series notebooks. It provides a power capacity of 51Wh and operates at 11.4V.This unit is a direct replacement part for the 7WNW1, GK3D3, and DMF8C battery models. Please verify your laptop model and battery part number to ensure this component meets your specific requirements prior to purchase.The battery has been previously used and is sold in its current condition. It is a 3-cell lithium-ion power pack built to meet the energy needs of Dell Rugged Extreme hardware.