The OEMTOOLS 20V MAX Li-ion Reciprocating Saw, No. 24491, uses a high-capacity 2.0Ah Li-ion slide battery for longer life and more power. Designed with an electric brake that stops the rotation of the tool immediately when the trigger is released to reduce work time for continuous jobs. It features a tool-less blade change, tool-free extendable foot, and an ergonomic, rubber mold-over grip for comfort. Its diagnostic, fast charger provides optimization with an auto shut-off feature to enhance battery life. The Li-ion battery resists self-discharge use and remains ready to use after storage. *Voltage is measured without workload. Maximum initial battery voltage after charging. Nominal voltage is 18V.