The 18V STANLEY® FATMAX® V20 Cordless 4-Piece Combo Kit with 1 x 2.0Ah and 1 x 4.0Ah Lithium Ion Battery and Soft Bag features new and improved battery technology, with no memory effect and minimal self-discharge. The kit includes 4 power tools from the 18V STANLEY® FATMAX® V20 Cordless range – a Hammer Drill, an Impact Driver, a Circular Saw, and an Angle Grinder. Complete with battery charge indicator for convenient monitoring of charge level. Part of the new 18V STANLEY® FATMAX® V20 Cordless System – power all your V20 tools with a common new and improved 18V lithium-ion battery to let you power through work with ease.