Is this impact wrench powerful enough for lug nuts?

Yes. It is built for automotive lug nuts and suspension bolts, with high breakaway torque. Use a torque stick or check torque by hand on final tightening.

Does it come with a battery and charger?

This listing pairs the wrench with a 5.0Ah 20V battery. Check the box contents for a charger, since some configurations include one and some do not.

Can I use other DeWalt 20V MAX batteries?

Yes. It runs on DeWalt's 20V MAX battery platform, so existing packs from drills and other tools fit. Larger packs add runtime but also weight.

How does it compare with a compact impact wrench?

It delivers more torque than most compact 12V and 18V wrenches but is heavier and bulkier. Choose it for heavy fasteners; choose a compact model for tight spaces.

Is it good for engine work?

It handles larger fasteners like crank bolts and suspension hardware. Its size makes it awkward in tight engine bays, so many owners keep a smaller wrench for those spots.