Harvesting Lithium-Ion cells from old batteries

Harvesting Lithium-Ion cells from old batteries

Old laptops and power tools are a goldmine for 18650 Li-Ion cells. With some care and the right tools, you can safely harvest and reuse them for DIY electronics projects. This guide walks you through disassembly, inspection, and safety precautions—helping you save money, reduce waste, and power your projects sustainably, one battery at a time.