DH30 Mini Spot Welder 30 Gears Power For 18650 NiMH

The DH30 Mini Spot Welder by meterk is a compact, high-performance tool designed to simplify battery pack assembly and repair. Its high-current, high-temperature welding process quickly fuses nickel sheets, delivering solid, consistent spots with minimal deformation. With a slim profile and smart features, this welder makes precise spot welding accessible whether you’re building 18650 cell packs, repairing NiMH or NiCd batteries, or performing hobby-grade battery maintenance.

Key to its versatility is the 30 gears adjustable output and an intuitive OLED display. You can see real-time gear, battery level, welding count, and delay at a glance, helping you work more accurately and efficiently. The device includes temperature protection and a low-battery charging reminder, so you can weld with confidence and maintain longevity of the tool.

Designed for practicality, the DH30 supports welding nickel sheets ranging from 0.1mm to 0.15mm with clean, solid joints, and up to 0.2mm under full battery conditions. It’s suitable for continuous welding of thousands of points on nickel sheets, making it ideal for constructing custom battery packs or performing precise repairs. The portable, user-friendly design—complemented by a superior welding pen with low resistance and durable construction—ensures smooth operation and reliable performance in the field or at home.

Benefits & Tips

• Exact control for different materials with 30 adjustable gears to achieve consistent weld quality and reduce tube frying.
• Use the OLED readout to monitor gear, battery percentage, welding count, and delay for precise timing and repeatable results.
• Keep handy for 18650, NiMH, NiCd, and other cylindrical batteries; its portable form factor makes on-the-go maintenance quick and easy.

Product specifications

• Brand Name: meterk
• Model Number: DH30
• Origin: Mainland China
• Use: 18650 Battery Welding
• Max. Welding Thickness: 0.2 mm
• Dimensions: 103 × 83 × 29 mm / 4.06 × 3.27 × 1.14 in
• Weight: 470 g / 1.04 lb
• Certification: CE
• Welding Process: High current and high temperature to rapidly melt nickel sheet and fuse joints

Package includes

• DH30 Mini Spot Welder

Warnings / Reminders

• This device uses high current and temperature; operate with proper safety precautions and in a well-ventilated area.
• Follow the recommended nickel sheet thickness: 0.1–0.15 mm for best results; up to 0.2 mm under full battery conditions.
• Utilize the built-in temperature protection and the low-battery charging reminder to maintain device performance.

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