DEWALT DCF850B vs DCF850E1 vs DCF850P1: Kit & Bare Guide

DEWALT sells the ATOMIC 20V MAX 1/4-in 3-speed brushless impact driver under three main US SKUs: DCF850B, DCF850E1, and DCF850P1. Every box contains the exact same DCF850 impact driver (1,825 in-lbs rated max torque, 3,250 rpm top speed, under 4 in head length). Only the battery, charger, and bag in the box change.

Bare tool vs kit cost calculator (DCF850B vs DCF850E1 / DCF850P1)

Enter current prices from your preferred retailer to calculate what you are paying for the bundled battery and charger. We do not pre-fill live store prices unless supplied by an approved feed within our freshness window.

Enter the current DCF850B bare-tool price and kit price above to see the exact kit premium and implied battery/charger cost.

What each DCF850 suffix puts in the box

In DEWALT's model-number system, the letters after DCF850 tell you whether batteries and a charger are included and which battery chemistry comes in the kit:

Use the package cards and comparison table below to verify the exact manufacturer box list before checking retailer prices.

DCF850E1 (1.7Ah POWERSTACK) vs DCF850P1 (5.0Ah XR): which kit battery fits your work?

Because both kits include only one battery, the choice between DCF850E1 and DCF850P1 comes down to footprint and weight versus capacity per charge.

The DCBP034 1.7Ah POWERSTACK pack in the DCF850E1 keeps the sub-4-inch DCF850 light and compact for overhead work, cabinet boxes, and service bags. The DCB205 5.0Ah pack in the DCF850P1 provides nearly three times the amp-hour capacity (5.0Ah vs 1.7Ah) for longer deck or framing runs between charges, at the cost of a heavier, larger base.

Researched by Rob, licensed electrician (Australia), 18 years on the tools. Deal mechanics described here are the makers' usual promotion types; check the exact terms on the retailer's offer. Found an error? Tell us.

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