This impact wrench is brushless to make it last longer. It runs on compressed air, so no need for charging.
From Data Powertools
HiKOKI WR36DE/W2Z 36V MultiVolt Impact Wrench 12.7mm Square Drive 770Nm Body Only
ITS
Hikoki WR36DE 36V MULTI VOLT Brushless 1/2" Impact Wrench - Body