Stanley Fatmax V20 18V 4.0Ah Lithium-Ion Battery

The Stanley Fatmax V20 18V 4.0Ah lithium-ion battery features new and improved battery technology, with no memory effect and minimal self-discharge. This 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 Fatamx 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.