ANENG Z99 Portable Spot Welder Kit 12V 99-Level Adjustable

ANENG Z99 Portable Spot Welder – Precision Control for 18650 Battery Packs

The ANENG Z99 Portable Spot Welder is a compact, high-performance control board designed for welding nickel strips onto 18650 lithium-ion battery packs and similar cells. With 99 adjustable power levels, a peak welding current of 1500A, and real-time voltage and temperature monitoring, this kit delivers professional-grade spot welding in a pocket-sized form factor. CE and RoHS certified. Made in China.

Key Features

• 99 Power Levels: Fine-tune your welding output with a real-time digital display showing your selected setting for repeatable, consistent welds every time.
• Real-Time Voltage Monitoring: Continuously monitors input voltage; displays "UE" alert if voltage falls outside the safe 8–17V operating range, protecting your batteries and board.
• MOSFET Thermal Protection: Displays "CE" warning if the MOSFET temperature exceeds 45°C, automatically safeguarding the circuitry from heat damage.
• 5× MOSFET Design: Five high-performance MOSFETs deliver peak welding currents up to 1500A MAX for fast, clean spot welds on nickel plate.
• 10AWG Wiring & Aluminium Oxide Copper Pins: High-current-rated wiring and durable spot welding pins ensure long service life and optimal conductivity.
• Pure Copper Conductors: Enhance thermal conductivity and overall welding efficiency for superior results on 0.1–0.3mm nickel plate.
• Ultra-Low Standby Consumption: Less than 0.5mA standby draw keeps your source battery topped up between sessions.

Technical Specifications

Package Options

Choose the package that suits your build:

• Package One: Mainboard ×1
• Package Two: Mainboard ×1, Welding Pen ×2, Connection Cable ×2, Heat Shrink Tubing ×2, Nickel Plate ×1, Screws ×4
• Package Three: Enclosure ×1 (assembly required by buyer)

Great Pairing for Your Workshop

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Learn more: OSHA guidance on hand and power tools

Frequently Asked Questions

Q: What type of battery do I need to power the ANENG Z99 spot welder?

A: The Z99 requires a 12V DC power source with a capacity of 25AH–60AH or a high-rate battery rated at 30C or above. Using a lithium-ion battery pack that meets these specs ensures the welder can deliver its peak 1500A welding current reliably. Standard car batteries can also work if they meet the voltage requirements.

Q: What is the maximum nickel plate thickness the Z99 can weld?

A: The ANENG Z99 spot welder can handle nickel plate thicknesses of 0.1mm to 0.3mm, depending on the capacity and rate of the power source battery used. Higher-rate batteries will support welding at the thicker end of the range.

Q: What do the "UE" and "CE" error codes mean on the Z99 display?

A: The "UE" code indicates that the input voltage is outside the safe operating range of 8–17V — check your power source. The "CE" code means the MOSFET temperature has exceeded 45°C — allow the unit to cool down before resuming welding to protect the board's circuitry.

Q: Is the Z99 spot welder kit suitable for beginners building 18650 battery packs?

A: Yes. The 99 adjustable power levels and real-time digital display make it easy to dial in the correct setting for your nickel strip thickness, while the built-in voltage and temperature protections add an extra layer of safety for those new to spot welding. Package Two includes welding pens, cables, heat shrink tubing, and nickel plate to get started right away.

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.