Upcoming Event

The Battery Show North America 2026

October 12–15, 2026
Huntington Place, Detroit, MI · Booth #6106

Visit us at Booth #6106. Live machine demonstrations and process consultations with RMA engineers.

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RMA #LaserExperts · U.S. Market

Reduce Welding Costs and Improve Battery Quality

High-efficiency laser welding machines for EV and lithium battery production. Built for U.S. industrial standards — with local support in Greer, SC.

Local support in the U.S. ISO 9001:2015 certified EV & ESS compatible
10×
Faster than TIG welding
<1s
Cycle time per weld
3
Cell types supported
15+
Years of laser R&D
RMA BW Series — Battery Welding Machines lineup

Laser welding machinesfor battery production

Explore machines →

Choose the right machinefor your production

From pilot production to fully automated lines. Hover over any machine to see technical specifications.

RMA W30-40 laser welding machine

Why U.S. ManufacturersSwitch to Laser Welding

Up to 10× Faster Production

Achieve significantly higher welding speeds compared to traditional TIG processes — enabling sub-second cycle times in high-volume battery production environments.

Superior Weld Quality & Precision

Ultra-narrow heat-affected zone minimizes distortion and ensures consistent, high-integrity welds — critical for EV and energy storage applications.

Lower Total Production Costs

Reduce post-processing, minimize rework, and integrate seamlessly with automated production lines to improve overall efficiency and ROI.

What we do

  • Machine design
  • Technology development and verification
  • Welding of module prototypes
  • Module design support

Materials

  • Steel
  • Copper (nickel plated)
  • Aluminum
  • Layered materials (SigmaClad)

Supported cell types

  • Prismatic (one or double side welded)
  • Cylindrical
  • Pouch
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RMA Battery Welder technical specifications
RMA laser welding technology RMA production facility

Laser Welding Experts for the Battery IndustryBuilt for U.S. Industry

At RMA #LaserExperts, we lead in Battery Laser Welding, offering advanced, tailored solutions for the U.S. and Europe battery industry. Our expertise extends to specialized and off-the-shelf laser welding systems.

Our state-of-the-art Laser Application Center supports robust testing, research, and technological support for clients, alongside pioneering development within the AIC S.A. group. ISO 9001:2015 certified.

Our Team

At RMA, our strength lies in our diverse and skilled team of engineers and experts. We handle projects in-house from start to finish, covering design, programming, assembly, and commissioning, all under the watchful eye of expert project managers.

Learn more about RMA
RMA Laser Application Center

Technology development& process validation

Our expertise continually evolves through the Laser Application Center (LAC) at our headquarters. We conduct technological evaluations for clients and explore innovative fields — validate your exact process before any investment decision.

Learn more about LAC →

The Battery Show North America 2026

The Battery Show North America 2026 returns to Detroit on October 12–15, bringing together thousands of engineers, innovators, and industry leaders to explore the future of advanced battery technology. With over 19,000 attendees, 1,150+ exhibitors, and a packed education program, it's one of the most important events in energy storage and e-mobility.

Visit RMA at Booth #6106 to see our Battery Welder series in action.

Learn more →

DownloadBW Series Brochure

Get the latest RMA Battery Welder series brochure with full technical specifications, machine comparisons, and application guides.

RMA BW Series brochure preview

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Battery Laser WeldingFAQ

Machines, materials & applications — answered by our engineering team.

Battery laser welding is a precision joining process that uses focused laser energy to weld battery components, such as cell tabs and busbars, with minimal heat distortion and high repeatability in production.
Our solutions support cylindrical cells (18650, 21700, 46xx), prismatic cells (single and double-side), and pouch cells — handling a wide range of battery designs in EVs, energy storage, and electronics.
Copper (including nickel-plated), aluminum, steel, and layered materials like SigmaClad — all commonly used in battery tab and busbar applications.
Laser welding offers high precision, fast processing speeds, minimal heat-affected zones, and superior weld quality compared to conventional resistance or TIG welding — up to 10× faster.
Yes — our Battery Welder series includes models designed for integration into automated production lines capable of high throughput and consistent performance. BW Max and BW Flex Turntable are specifically engineered for this.
We conduct laser welding process evaluations and technology testing in our Laser Application Center (LAC) to tailor solutions to your specific product and production requirements — before any purchase decision.
Yes. All U.S. sales, installation, commissioning, and technical support is handled by Li10 LLC in Greer, SC — our authorized U.S. partner with deep expertise in laser welding for automotive and battery applications.
Modern laser welding machines include real-time monitoring and data logging to ensure repeatable weld results and process traceability across production batches.

Get a Quotefrom our U.S. team

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