Welding often takes place outdoors or in locations without immediate access to mains power. Instead of hauling a corded welder and generator to every job, the DeWALT DCW100K cordless stick and TIG welder offers a compact, portable alternative. It can run on its internal battery for true cordless convenience or be plugged into a 20 amp circuit or a jobsite generator when AC power is available.
The DCW100K uses an internal lithium-ion battery that recharges while the unit is connected to AC power. An external 4.4 lb rapid charger restores the battery in about 50 minutes, so the welder can be kept ready and available for remote work. Weighing under 25 lbs, the unit is light enough to carry around a jobsite, making it practical for mechanical repairs, fleet and field service, installation tasks, and stair or railing fabrication and repairs.
Delivering up to 140 amps in Stick mode and 150 amps in TIG mode, the DCW100K provides professional-grade output suitable for most construction and maintenance applications. A clear digital display reports amperage and control settings, which are adjusted using a single control dial. Additional indicators show the selected mode (Stick or TIG), and the unit includes Hot Start and Soft Start settings to help initiate and stabilize the arc at lower amperages. An Arc Force Dynamic feature boosts amperage automatically to prevent the weld pool from freezing, improving bead quality and reducing interruptions. A battery status bar displays remaining charge so users can monitor run time. The package also includes a 13 ft stick electrode lead and a 10 ft ground lead for flexible setup and reach.
According to Ward Smith, DEWALT product manager, “DEWALT continues to push the boundaries of cordless innovation on the jobsite, delivering a portable power solution for the welding professional. The DCW100K Cordless Welder delivers premium performance in a lightweight and portable package.”
The DCW100K is designed for professionals who need a balance of portability and power. Its fast-charge battery, multiple power options, and straightforward controls make it well suited for mobile welders, service technicians, and tradespeople working in remote or tight-access locations where carrying heavy, corded equipment is impractical. While its maximum amperage covers the majority of common welding tasks, operators should verify material thickness and electrode compatibility for specific applications.
Overall, the DeWALT DCW100K brings convenient cordless operation, quick recharge capability, and professional features into a compact unit that eases transportation and setup on jobsites where mobility and flexibility matter most.