Is the DeWalt DCF891P2 powerful enough for lug nuts?

Yes. It is a high-torque 1/2-inch impact wrench and handles most passenger-car and light-truck lug nuts without a breaker bar. Very tight or rusted fasteners may still need a soak or a longer run.

The kit includes the impact wrench, two 20V Max 5.0Ah batteries, a charger and a carrying case. Check the listing for the exact case type.

Does it use the same batteries as other DeWalt 20V tools?

Yes. It runs on the DeWalt 20V Max battery platform, so packs from drills, saws and other 20V tools fit.

How does it compare with a compact 1/2-inch impact wrench?

It delivers more torque and runtime but is heavier and larger. Choose it for heavy fastening; choose a compact model for tight spaces and overhead work.

Does it have speed control?

Yes. It has multiple speed settings plus forward and reverse, which helps when starting threads or working on softer materials.

Is it too heavy for everyday use?

It is on the heavy side for a 1/2-inch cordless wrench. For occasional use that is fine; for long overhead jobs a lighter compact model may suit you better.