Which is better for driving screws?

The combo kit. Its impact driver delivers 1,700 in-lb and 3,200 RPM, which drives long screws and lag bolts far better than a drill clutch. The DCD800 is a drill/driver only.

Do I need batteries for the DCD800?

Usually yes. It is sold as a bare tool, though some listings include a 5Ah battery. Check the listing before buying, and budget for a 20V MAX battery and charger if you have none.

Is the combo kit worth the extra $19?

Yes for most new buyers. At $129.00 at Amazon as of November 6, 2026, it adds an impact driver, a second battery, a charger and a bag over the $109.99 bare drill.

Which drill is more powerful?

The DCD800 spins faster at 1,650 RPM versus 1,500 RPM and has a more compact brushless head. The combo drill is older and heavier, but the kit's impact driver covers high-torque fastening.

Which lasts longer on a charge?

The DCD800 with a 3Ah or 5Ah pack will outlast the kit's 1.3 Ah batteries. The kit includes two packs, so you can swap, but each runs down sooner.

Can I use the same batteries on both?

Yes. Both run on DeWalt 20V MAX lithium-ion batteries, so packs and chargers are interchangeable across the two.

DeWalt 20V Max XR DCD800 vs DeWalt 20V MAX Cordless Drill and Impact Driver

Buy the DCD800 if you want one compact, powerful drill and already own DeWalt 20V batteries. Buy the combo kit if you need an impact driver too and want two batteries and a charger in the box. The DCD800 is $109.99 at Walmart as of November 6, 2026, and the combo kit is $129.00 at Amazon as of the same date. The combo kit costs about $19 more but adds a second tool, a second battery and a charger.

Today the DeWalt 20V Max XR DCD800 costs $5.01 less at its best price.

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