Built for STANLEY FATMAX V20 18V power tools such as drills, drivers, sanders, nail guns, angle grinders, lights, multi tools and outdoor equipment. The batteries can be used across the entire STANLEY FATMAX V20 range. The Kit features new and improved battery technology, with no memory effect and minimal self-discharge. The V20 Lithium-ion battery pack is ready to go to work whenever you are and wherever the job takes you, with an integral battery state of charge indicator for convenient monitoring of battery charge levels. The 18V STANLEY FATMAX V20 Cordless System batteries can be interchanged with your V20 power tools, using a common new and improved 18V Lithium-ion battery for longer runtime and power to get the job done. The higher the amp hour (Ah) the longer the battery will last before it needs to be recharged. Comes with: 2x 2.0Ah battery pack, charger.