Tactical Welder, Portable, Lithium Battery Operated

Tactical Welder, Portable, Lithium Battery Operated

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The most powerful battery-powered welder available. A Tactical Welder from Ultra Tech!

No one would argue the necessity and usefulness of welding. It is often the best and sometimes the only option in fabrication and repair. And so long as the work can be brought into a welding shop, there are few challenges in the process. But when work is required out in the field, more specifically in remote areas … the challenges abound!

Welding equipment has traditionally been large, heavy and bulky … and necessarily so. Until now. The Tactical Welder is a completely portable welding solution that offers the power that used to take a room full of equipment.

Lithium battery-powered arc welding is here.

The Tactical Welder portable welding tool is powered by a 528Wh lithium-ion battery pack. A state-of-the-art electronic Battery Management System (BMS) safely controls charging and discharging functions. The weld gun is a 300A industrial grade spool gun wire-feed welder.

Features & Benefits:

  • Completely battery-powered system – no long power cords, heavy cables or generators necessary.
  • State-of-the-art, electronic battery management system uses high capacity lithium-ion batteries to provide consistent power and safely controls charging and discharging functions.
  • Ultimate portability – all components are designed to be stored/transported in the included backpack. The bag provides a holster for the spool gun and tools, allowing for one-hand welding operations.
  • The system includes a high current contractor for cold tip operation. Clamp the ground, pull the trigger and weld.

The Welder comes complete with:

  • Power system (Battery & BMS)
  • Spool gun
  • 7A charger
  • 300A ground clamp
  • 6 foot cables with high-current plug connectors for positive or negative ground welding.

The Tactical Welder can be used just about anywhere. Its compact size and weight mean you can carry your welder to wherever you need it. You don't have to plug in, string cables, or fire up a generator because the Tactical Welder is self-powered with its own high-capacity lithium ion battery system. Just clamp the ground and start to weld. It's that simple.


The Tactical Welder is capable of producing a weld that meets AWS D1.1 structural steel requirements based on face bend and root bend testing, using the included feed gun with 0.035 in. flux-cored
wire and argon gas on a 3/8" steel plate.


The Tactical Welder is capable of welding approximately a one pound spool of weld wire on a single charge. It is capable of performing high-quality MIG welds and flux-cored welds. This product will change the way emergency welding jobs or smaller remote welding projects are handled. Because the welder offers superior portability and mobility, it could replace much larger setups, such as crane-hoisted generator/welder rigs. The Tactical Welder also allows for welding in otherwise impossible locations, where larger equipment simply cannot be used.

Potential Industries & Applications

  • Communications Tower Repair
  • Farming Equipment Repair
  • Railroad Maintenance & Repair
  • Infrastructure & Bridge Repair
  • Amusement Park Maintenance
  • Off-Road Vehicle Repair
  • Roadside Truck Repair
  • Automobile Racing
  • Offshore Oil & Gas Equipment Repair
  • Oil Field Maintenance
  • Shipyard & Marine Maintenance & Repair
  • Mill Maintenance
  • Plant Maintenance
  • Fence Repair
  • Roofing Repair
  • HVAC Repair

Tactical Welder

Part # Description Dimensions in. Power Weight lbs. (kg)
UT-4800 Tactical Welder - Portable battery powered welding system 24 x 18 x 12 " 300A 35 (16.0)

More info / Downloads


Technical Data Sheet

Warranty & Return Policy

Frequently Asked Questions

What kind of power does the Tactical Welder have?
It holds about 1/2 kW of energy and 300 amps. It is 26.4 Volts.

What kind of welding is the Tactical Welder capable of?
The Welder is capable of MIG and flux core welding using a wire feed gun.

What is the warranty on the Tactical Welder?
There is a one-year warranty on parts and labor. Please see the written warranty for full details.

How long can the Tactical Welder operate?
It can continuously weld for approximately 18 minutes. At a 30% duty cycle, the Welder can weld for approximately 54 minutes. The Welder's gun holds a one lb. spool of wire and the Welder has shown to be able to weld half of that on a single charge. The actual amount of weld or wire used is dependent on a number of factors. Results may vary.

What comes with the Tactical Welder?
The Tactical Welder includes a Battery Management System (includes the batteries) , a welding wire feed gun (variable speed) , a 300A ground clamp, a 7A, 120/240 V battery recharger and a custom backpack.

What size wire does the Tactical Welder use?
The Welder can use wire from 0.023" to 0.040".

What thicknesses of steel or metal can be welded with the Tactical Welder?
From 1/8" to 1/2" (3.2 mm to 12.7 mm.)

How long does it take to recharge the battery pack?
The battery pack takes approximately 2.5 hours to charge fully.

What type of safety features are built into the Battery Management System (BMS) ?
The BMS monitors each cell to ensure balanced charging and discharging. It also monitors the internal temperature of the battery pack and is capable of shutting the system down if it detects an internal fault.

Are Battery Packs available separately?
Yes, Battery Packs can be purchased separately to provide a back-up.

How much does the Tactical Welder weigh?
The complete system (including the backpack) weight 27 lbs.

Is the Tactical Welder capable of welding aluminum?
Yes, but thinner aluminum could be burned through if the user is not adept at welding aluminum.

Does it have a "cold tip" feature?
Yes, as well as some other features to promote maximum safety.

How long are the leads?
The leads are six feet in length.

Can the Tactical Welder be used with argon or another inert gas?
Yes, there is a tube in the gun for connecting to an inert gas. To allow a gas bottle to fit into the backpack with the welder, we recommend using a "paintball" size gas cylinder.

Can the Tactical Welder be used underwater?
No, it should not be submerged in water for any reason.

Can the unit TIG or stick weld?
The Tactical Welder cannot TIG or stick weld.

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