Is the DCF845D2 powerful enough for deck screws and lags?

Yes. At 1,825 in-lbs and 3,400 RPM it drives large-diameter screws and lag bolts that smaller drivers struggle with. Use the lower speed settings for control in soft wood.

How does it compare with DeWalt's older impact drivers?

It is more compact and lighter than earlier 20V MAX drivers, with more torque and a three-speed selector. The brushless motor also runs cooler and should last longer.

What comes in the kit?

The kit includes the DCF845 impact driver, one 20V MAX XR 5 Ah battery and a charger. Check the listing for a belt hook or bit holder, since kit contents vary.

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

Yes. It runs on any DeWalt 20V MAX battery, so it shares packs with DeWalt drills, saws and other 20V tools.

How long does the battery take to charge?

The included 5 Ah battery charges in about 90 minutes on the supplied charger. A fast charger cuts that time if you add one.

Is it too much driver for light household jobs?

It is more than most home tasks need, but the low speed settings make it manageable for furniture and small repairs. Casual users may prefer a cheaper single-speed model.