New Product Online: The Revolution of Storage Spot Welding Machine


Welcome to the official Heltec Energy product blog! We’re glad to announce that we've achieved one small step in our blueprint of launching new models of our Battery Welding Machine -- HT-SW02 Series. Based on positive feedback from customers, our technicians spent months of independent research and technological innovation development on previous spot welding models, and now more powerful versions are now officially online!

Compared with previous models, HT-SW02 Series have max peak pulse power of 42KW, with peak output current 7000A. Specially designed for welding copper, aluminum and nickel conversion sheet, SW02 series support thicker copper, pure nickel, nickel-aluminum and other metals welded easily and firmly (support nickel plated copper sheet and pure nickel direct welding to the battery copper electrodes, pure copper sheet direct welding to the battery copper electrodes with flux).


  • High power output without tripping: 42KW high-power output up to 7000A high current;
  • Patent reflow technology: low resistance and low loss, unobstructed high current flow;
  • Super Energy-Gathered Technology: millisecond level solder nuggets, no damage to the battery;
  • Dual welding mode: AT Mode - Automatic Welding Mode; MT Mode - Foot Pedal Switch Controlling Mode.

HT-SW02H is also capable of resistance measurement. It can measure the resistance between the connecting piece and the electrode of the battery after spot welding. The more solder joints, the lower the on-resistance. The more reliable and solid the solder joints, and the more stable the performance of the battery pack.

Widely Application:

Battery (copper electrode)

High rate battery pack (copper electrode)

LFP battery (copper electrode)

LFP battery (aluminum electrode)

Copper mesh

Copper conductor

As we look ahead, Heltec Energy is eager to explore advanced welding techniques, including laser spot welding. Laser spot welding offers precise and efficient joining of battery components, ensuring strong and durable connections. By harnessing the power of laser technology, we aim to deliver superior welding solutions that meet the stringent quality requirements of battery manufacturing. Laser spot welding will enable manufacturers to achieve enhanced production speeds, lower defect rates, and improved overall product performance.


At Heltec Energy, our goal is to provide comprehensive one-stop solutions for battery pack manufacturers. From BMS to high-power spot welding machines and advanced welding techniques, we strive to meet the evolving needs of the industry under one roof. Our dedication to research and development, coupled with our customer-centric approach, ensures that we deliver tailored solutions that address specific challenges and contribute to the success of our clients.

Heltec Energy is your trusted partner in battery pack manufacturing. With our relentless focus on research and development, coupled with our comprehensive range of battery accessories, we offer one-stop solutions to meet the evolving needs of the industry. Our commitment to excellence, tailored solutions, and strong customer partnerships make us the go-to choice for battery pack manufacturers and suppliers worldwide.

If you have any questions or would like to learn more, please don't hesitate to reach out to us.

Post time: Jul-11-2023