BLACK+DECKER LDX172C 7.2-Volt Lithium-Ion Drill/Driver Lithium Ion Battery - Always Ready, holds a charge up to 18 months Keyless chuck for quick and easy bit changes Mid-handle design for balance and control Lithium Ion Battery - Always Ready, holds a charge up to 18 months Keyless chuck for quick and easy bit changes Mid-handle design for balance and control Fan-cooled motor extends drill life Two drill speeds plus forward/reverse assure the right speed for the job