DIY Portable 12V Battery Energy Storage Spot Welding PCB Circuit Boar

The DIY Portable 12V Battery Energy Storage Spot Welding PCB Circuit Board is a compact and efficient welding solution designed for assembling lithium battery packs. It works with 18650, 26650, and 32650 cells, enabling stable welding of nickel strips with excellent reliability. Operating at 12V–14.6V and 90A–150A working current, this board converts a standard 12V battery into a powerful spot welding machine.

It supports multiple power sources, including lead-acid batteries, LiPo packs, and large-capacity 18650 battery packs. The board features 4 selectable power levels (low, medium, high, automatic) for precise welding according to material thickness. With intelligent LED indicators and buzzer feedback, it is easy to control and ensures accurate results.

Designed for hobbyists, DIY enthusiasts, and small-scale battery pack assembly, this portable PCB board provides high performance with safety features such as current protection. It is best suited for welding 0.1mm to 0.15mm nickel strips, commonly used in lithium-ion and nickel-chromium battery packs.

Applications

• DIY battery pack assembly (18650 / 26650 / 32650 cells)

• Welding nickel strips for lithium-ion batteries

• Spot welding for Ni-Cr battery packs

• Ideal for hobby projects, repair work, and small production units

Features

• Compact & portable design for DIY use

• Works with 12V–14.6V battery sources

• Supports lead-acid, LiPo, and 18650 packs

• Adjustable 4 power levels (Low/Med/High/Auto)

• Handles 0.1–0.15mm nickel strip welding

• Intelligent LED & buzzer feedback control

• High current output (90–150A, peak up to 200A)

Specifications

Package Includes

• 1 × Main Spot Welding Circuit Board

• 2 × Input Wires

• 2 × Output Wires (with welding pen)

• 1 × Welding Components Kit