DeWALT DCB2104 20V MAX XR POWERPACK 4.0Ah Battery, 4-Pack

Key Features

More Output, Same Platform

The DEWALT DCB2104 20V MAX XR POWERPACK 4Ah Battery is built to deliver 50% more power than the DCB240 , so your 20V MAX tools hit harder without changing platforms.

Longer Service Life

Tabless cell technology is aimed at longer battery life across charge cycles, which matters if your tools are in regular rotation every day.

Jobsite-Ready Build

An overmolded base helps the pack handle wear and impact, and the built-in charge indicator lets you check battery status before you start the next task.

Overview

The DEWALT DCB2104 20V MAX XR POWERPACK 4Ah Battery is a lithium-ion cordless tool battery built for DEWALT 20V MAX users who want more output from the tools they already own. This is a battery designed for powering DEWALT 20V MAX cordless tools on demanding jobs. Model Number: DCB2104 . If your current pack gets the job done but starts to feel short on punch under heavier load, this is the upgrade aimed at solving that.

What matters here is not just the 4Ah capacity, but how DEWALT built this pack. DEWALT states this battery delivers 50% more power than the DCB240, and it does that while staying on the same 20V MAX platform. In plain terms, that means better support for harder cuts, heavier fastening, and longer stretches of work before you have to swap packs, especially on tools that make battery performance obvious right away.

A big part of the story is the tabless cell technology. That is the engineering change behind DEWALT calling this one of its best performing 20V MAX 4Ah batteries. The practical benefit is improved power delivery and longer lifespan across charge cycles compared with traditional cylindrical battery designs referenced by DEWALT. For users who burn through batteries every week, longer life is not a spec-sheet talking point. It means fewer weak packs in the rotation over time.

DEWALT also gave the pack the kind of physical details that matter on actual jobsites. The overmolded base is there to help resist wear and impact, which is important on a battery that gets set down on concrete, slid across subfloors, and loaded in and out of gang boxes. The built-in LED state-of-charge indicator is another small feature that saves time in real use. You can check the pack before climbing a ladder, starting a run of fasteners, or heading to the far side of a site instead of finding out mid-task that you grabbed the wrong battery.

Compatibility is straightforward, which is exactly what most buyers want from a battery purchase. The DCB2104 is part of the DEWALT 20V MAX battery system and is compatible with DEWALT 20V MAX tools. It is also described in product imagery as compatible with 20V MAX tools and chargers, so it fits into an existing DEWALT cordless setup without forcing a platform change. If you already run 20V MAX drills, impact drivers, saws, lights, or other cordless tools, this battery is meant to drop right into that system.