AWithZ UK1 9000W Battery Spot Welder with 100-Level Control

The UK1’s rotary knob offers 100 power levels, making it easier to adjust weld strength for different battery-pack tasks. Its dual-pulse output and support for 0.1–0.3 mm nickel-plated material are suited to DIY battery assembly and other small metal-joining work.

Choose automatic mode when you want a faster rhythm for repeated welds: the welder activates when both pens touch the material. For more deliberate positioning, use the foot-pedal mode to control weld timing while keeping both hands on the pens.

A continuous-weld setting can make paired welds without lifting and repositioning the pens between them. That’s useful when assembling battery connections where consistent spacing matters.

How to use it

Set the mode and power level with the rotary knob, then position the welding pens on the material. In automatic mode, contact with the material triggers the weld, in foot-pedal mode, press the pedal to control when it fires. The pedal approach is handy when aligning a connection or working across several positions, while automatic operation suits repetitive work where speed is the priority.

The panel presents the mode, gear, continuous-weld count and trigger settings for adjustment. For paired welds, select the continuous-weld function and position the pens at the intended points before starting. As with any spot welder, place the work securely and keep the weld area clear while operating it.

Pros

Fine adjustment across 100 power levels helps tailor the weld setting to the task, from small battery connections to more robust cylindrical-cell work. Dual-pulse output supports the spot-welding process, while the continuous-weld option reduces repeated lifting and repositioning for paired connections.

The front-facing pen connection and straight operating path help keep the welder in place as you work. This is useful when accurate pen placement is more important than moving quickly between weld locations. A built-in thermal monitor can halt welding and alert you if overheating is detected, and the unit shuts off automatically after eight minutes without operation.

At a glance

• Type: Battery-powered spot welder
• Model: UK1
• Power control: 100 adjustable levels with a rotary knob
• Modes: Automatic and foot-pedal operation
• Material: 0.1–0.3 mm nickel-plated material
• What’s included: UK1 spot welder, two welding pens, foot switch, nickel-plated sheet metal roll, charging cable and gauze

When it makes sense

The UK1 is designed for battery-pack work, including connections between cells and conductive connection points. It can also suit small metal-joining jobs such as electronic component connections, metal mesh, small hardware and wire terminals. Its adjustable power gives you control over the weld setting, while the two operating modes let you choose between a repetitive workflow and more hands-on timing.

If your priority is rapid, repeatable placement, automatic mode offers a direct way to work through a series of welds. If you need to focus on positioning each connection, the pedal lets you decide when the weld is made. Compared with a soldering approach, spot welding is a purpose-built method for joining thin metal connections in battery packs without making soldering the central step.

The package includes the core tools for getting started: the welder, pens and pedal, along with nickel-plated sheet metal for practice or assembly. It is a practical fit for DIY battery-pack makers and small workshop projects that call for adjustable spot welding, especially where paired welds or careful placement are part of the job.