Mini Spot Welder All-in-One Handheld Spot Welding Machine 12 Gear Adjustable DIY 18650 Lithium Battery Spot Welding Tool

⚡ Frustrated with bulky spot welders that are hard to handle? Tired of unreliable welds that fail on your 18650 battery packs?

Whether you're assembling lithium battery packs, repairing phones, or working on DIY electronics, you need a compact, powerful, and precise spot welder that you can trust. This Handheld 800A Spot Welder with 12 adjustable power levels and built-in LED lighting delivers clean, consistent welds on nickel strips up to 0.25mm thick – all in a palm-sized design that fits in your tool bag.

❓ Frequently Asked Questions

⭐ Key Features

🤏 Compact & Portable – One-Hand Operation

Lightweight and ergonomic design – fits comfortably in your palm. Perfect for mobile phone repair technicians and DIY enthusiasts who need to work on the go.

⚡ 800A Peak Output – Powerful Welding

Delivers up to 800A instantaneous current for strong, reliable welds. Welds nickel strips from 0.1mm to 0.25mm thickness with ease.

🎛️ 12 Adjustable Power Gears – Manual & Auto Modes

Choose from 12 power levels to match different material thicknesses and welding requirements. Supports both manual and automatic operation modes – switch between them based on your preference and project needs.

🔧 Detachable Welding Pins – Easy Alignment

No more threaded pins that come loose! Features embedded fixing technology for quick, secure pin installation and precise alignment. Copper pins are pure copper material, approximately 3×50mm.

💡 LED Lighting – 10 Brightness Levels

Built-in LED light with 0-9 adjustable brightness levels – work confidently in dark environments without additional lighting.

🛡️ Comprehensive Multi-Protection System

Keep your device and batteries safe with:

Surge protection – prevents voltage spikes

Voltage regulation protection – stable output

Short circuit protection – automatic shutdown

Low temperature protection – safe in cold environments

High temperature protection – auto-shutdown when overheated

Overcharge protection – extends battery life

Over-discharge protection – prevents deep discharge damage

🔋 2200mAh Li-Polymer Battery – Type-C Charging

Built-in 2200mAh lithium polymer battery provides ample power for multiple welding sessions. Convenient Type-C charging (5V/2A) – charge from any USB power source.

📊 LED Display – Real-Time Status

Clear LED screen shows current power level, battery status, and operating mode – always know your device status at a glance.

🔧 Typical Applications

✅ 18650 / 21700 Lithium Battery Pack Assembly

The most common application! Build custom battery packs for e-bikes, power tools, laptops, and DIY power stations. Welds nickel strips securely onto battery terminals – no soldering damage to battery cells.

✅ Mobile Phone Repair

Compact size makes it perfect for phone repair workshops. Use for battery tab welding and fine electronics work. The adjustable power levels ensure precision on delicate components.

✅ DIY Electronics Projects

Ideal for makers and hobbyists. Build custom battery packs for robots, RC vehicles, drones, portable speakers, and other DIY projects.

✅ Power Tool Battery Replacement

Replace dead cells in power tool battery packs (Makita, Dewalt, etc.). The 800A output easily handles the welding requirements of high-capacity battery packs.

✅ Emergency On-Site Repairs

Portable design lets you carry it to job sites. No need for bulky bench welders – fix battery packs wherever you are.

📋 Technical Specifications

🔍 Troubleshooting – Common Issues & Solutions

📦 Package Includes

1 × Handheld Spot Welder

1 × Type-C Charging Cable

1 × Sandpaper (for cleaning welding pins)

1 × 2m Nickel Strip Roll

2 × Spare Welding Pins (pure copper)

1 × Screwdriver