KATSU FIT-BAT Cordless Tools Range they all take the same battery, works on both 18V or 21V, compatible with LXT range, use your current or easy to find on amazon (compatible with BL1850 BL1860B BL1855 BL1840 BL1830 LXT-400 BL1820B BL1815).
Features:
Rechargeable battery operated, much more convenient for outside operation.
Compact size, can be used by single hand easily.
Perfect for site work, curtain installation, building, auto maintenance etc.
With brushless motor the battery lasts almost twice longer than normal brushed motors, in addition it is maintenance free.
High speeds for powerful screw driving, 1/2 inch, 280Nm max. torque.
High work efficiency, widely used for fixing and loosening the screw.
Comfortable soft and secure grip, built-in LED light illuminates the working area, forward/reverse operation.
Comes with 1 x 3.0Ah battery and charger in plastic case.
Specification:
Material: Plastic and Aluminum
Cordless Tool Type: Impact Wrench
Power Supply: Rechargeable Li-ion Battery
Voltage: DC 21V
Motor Type: Brushless Motor
Speed: Forward/Reverse Operation
No-load Speed: 0-1750rpm/0-2200rpm
Impact Rate: 0-3000ipm
Max.Torque: 280N.M
Socket Size: 1/2 Inch Squre Drive
Comes with 1 x 21V 3.0Ah battery and charger