30-Gear 18650 Battery Spot Welder – LCD Digital Display Kit

$146.59 $165.70

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30-Gear Handheld Spot Welder for 18650 Lithium Batteries

Take full control of your battery pack builds with this precision 30-Gear Handheld Spot Welding Machine. Featuring a vivid 1.8" LCD color display and 30 adjustable power levels, this compact unit delivers clean, consistent welds on nickel strips from 0.1 mm to 0.25 mm — giving hobbyists and professionals alike the accuracy they need for 18650, 26650, and 32650 cylindrical lithium battery assemblies.

Made in Mainland China.

Key Features

30-Gear Precision Control: Fine-tune welding output for different nickel strip thicknesses. Accurate gear switching ensures the optimal pulse energy for every weld, resulting in firm, complete solder joints every time.
1.8" LCD Color Display: Real-time readout of gear setting, weld count, battery level, and circuit board temperature — all at a glance.
Fast 2.1A Charging: Charges fully in just 2–3 hours. Ultra-low standby current (20 µA) means the built-in 5000 mAh battery can hold charge on standby for up to one year.
Smart Protection System: Overheating cutoff at 65 °C, automatic shutdown on low power, and real-time temperature monitoring keep your session safe and your equipment protected.
2-in-1 Functionality: Not just a spot welder — doubles as a 5V/2.4A USB power bank so you can charge devices on the go.
40 cm Flexible Welding Pen: The ergonomically sized spot-welding pen offers the ideal reach for most battery pack configurations without sacrificing weld quality.
Wide Battery Compatibility: Handles 18650, 26650, 32650 lithium-ion cells, as well as NiMH and NiCd cylindrical battery formats.
Weld Counter: Tracks cumulative solder joint count for better session management and electrode maintenance scheduling.

Technical Specifications

Operating Voltage	4.2 ± 0.05 V
Welding Current Range	6 – 1200 A
Built-in Battery Capacity	5000 mAh
Overheating Protection	65 °C
Full Charge Time	2 – 3 hours
Weld Endurance per Charge	800 – 2000 welds
Battery Cycle Life	1000 cycles
Standby Current	20 µA
Charging Input	5.2 V / 2.1 A
USB Output (Power Bank)	5 V / 2.4 A Max
Nickel Strip Thickness	0.1 – 0.25 mm
Unit Dimensions	112 × 80 × 30 mm
Storage Conditions	≤55 °C / 50% RH

What's in the Box

1 × Spot Welder Unit
2 × Spot Welding Pens (~40 cm each)
1 × Data / Charging Cable
1 × Bare Blue Paper (insulation)
1 × Practice Nickel Plate

Related Tools You May Need

Complete your workshop setup with these handy accessories from our store:

Note: Dimensions are measured manually and may vary by ±1–2 cm. Product color may appear slightly different from photos due to camera settings and screen display variation.

Learn more: OSHA on personal protective equipment

Frequently Asked Questions

Q: What nickel strip thicknesses can this spot welder handle?

A: This 30-gear handheld spot welder supports nickel strips from 0.1 mm up to 0.25 mm. At full power (gear 30), it can reliably weld 0.25 mm nickel strips for demanding battery pack applications.

Q: Which battery types are compatible with this spot welder?

A: The welder is compatible with 18650, 26650, and 32650 cylindrical lithium-ion cells, as well as NiMH and NiCd cylindrical batteries, making it highly versatile for DIY battery pack builders.

Q: Does it need an external power source to operate?

A: No — it has a built-in 5000 mAh lithium battery, so it is fully self-contained and portable. It charges via the included cable (5.2 V / 2.1 A) and can complete 800 to 2000 welds on a single charge depending on the gear setting used.

Q: Can this unit also charge my devices like a power bank?

A: Yes! The unit doubles as a USB power bank with a 5 V / 2.4 A output, so you can use it to fast-charge smartphones or other USB devices when not spot welding.

Q: Is there overheating protection built in?

A: Absolutely. The machine features automatic thermal cutoff at 65 °C, real-time circuit board temperature monitoring on the LCD, and auto-shutdown when the battery is low — all working together to keep operation safe and consistent.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.