QianLi Macaron Max Portable Spot Welder

Battery rebuilds don't always happen at the main bench, and dragging a mains welder around isn't practical. The QianLi Macaron Max is a portable spot welder with a built-in rechargeable battery, small enough to keep in a drawer.

It uses dual-pulse welding, a preheat pulse followed by the main pulse, with adjustable strength and timing plus automatic or manual triggering. The listing says it handles phone cells, 18650 and other cylindrical lithium cells, Ni-MH and nickel-cadmium cells, and stainless sheet under 0.12 mm thick. The set includes the welder, welding pens and a nickel sheet.

Jobs it handles

• A loose tab during battery replacement.

• A BMS board swapped onto a cell.

• Damaged packs that need new strip.

• Contacts where an iron could overheat the cell.

Tips

Charge it before a session and start with low pulse settings on scrap strip. Raise the strength in small steps until the weld survives a firm pull, and keep the pen tips clean so current flows evenly.

No battery capacity, output current or charging details are given, so ask the seller if you plan to weld thicker strip or long runs between charges.