This 125mm brushless angle grinder is the ideal choice for short term, high load work. The brushless motor provides higher power output with lower power consumption and better longevity overall. This unit comes with a 4Ah battery, which you can quickly charge in the charger supplied. For more demanding or longer work, we recommend larger batteries with a capacity of 6-8Ah. The battery can be used in all types of tools of the EXTOL SHARE20V series. Thanks to the Li-ion technology used, it can be recharged at any time without reducing its capacity. The Li-ion battery has minimal self-discharge and lasts a long time when charged and ready for use.