Scooter Repacks [updated] -

High current generates heat. You never solder directly to lithium cells because the heat damages the internal separator. Instead, a professional repack uses a with pure nickel strips (0.15mm to 0.2mm thick). Steel-plated nickel is common in cheap packs but rusts over time, leading to resistance and failure.

Hot spots appear on the outer shell of the muffler. Scooter Repacks

If you crush a cell, overheat it with a soldering iron, or short a nickel strip, the cell enters thermal runaway. It vents flammable gas and reaches 700°C (1300°F). A single mistake during a repack can ignite your workshop in seconds. High current generates heat