This Starter Kit includes two 18V Stanley FatMax V20 2.0Ah Lithium-ion batteries and a fast charger, so you're able to keep all of your V20 tools charged and ready to go, whether you're working at home or on the job site. Advanced, cutting-edge technology has led to a battery with no memory effect and minimal self-discharge, a top-grade level of design and reliability that professionals will surely appreciate. An integral battery charge state indicator allows users to convenient monitor their battery levels, which reduces the chance of an annoying surprise from a depleted battery pack. Power through your work with ease, handling the power and convenience of cordless.