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 line (compatible with BL1850 BL1860B BL1855 BL1840 BL1830 LXT-400 BL1820B BL1815)
With brushless motor the battery lasts almost twice longer than normal brushed motors, in addition it is maintenance free
Rubber soft grip coated handle, takes 115mm and 125mm blades
Comes with 21V 4.0Ah battery and fast charger, 10pcs 115mm stainless steel grinding discs included
Good quality at a very Reasonable price
Specification:
Brushless motor
With 4.0Ah Batteries and charger
No-load speed: 3000-10000rpm, Spindle thread: M14
Blade diameter 115/125mm
Power Supply Voltage: 21V
10pcs 115mm stainless steel grinding discs included