A professional quality tool which combines exceptional power and durability in a lightweight and compact size. Features the best Lithium-Ion battery technology available which lasts up to three times longer than any other battery on the market. Voltage: 18.0 V d.c (3.0 A.h) Charging Time: 1 hour from flat (Auto cut off facility) Capability (example): A fully charged battery pack can tighten and loosen 150 21mm wheel nuts External 4 level push button battery charge indicator Externally replaceable carbon brush motor Comes complete with battery charger pack and professional carry/storage case