YouTuber builds off-grid power wall from 500 used vape batteries

British engineer and YouTuber Chris Doel created a 2.52 kWh off-grid power wall using 500 recycled lithium-ion batteries salvaged from disposable vape pens. By collecting discarded vapes, testing each battery for viability, and assembling them into 56 modules with 3D-printed holders, Doel constructed a system that delivers about 50 volts DC. This power wall, connected to an inverter, converts the energy to standard 230 volts AC, enabling him to run his workshop appliances such as a kettle, microwave, fan, and computer without relying on the electrical grid. Doel’s project not only showcases a practical reuse of electronic waste but also highlights the environmental impact of disposable vapes, which often end up in landfills despite containing rechargeable batteries. His setup, weighing around 38 kilograms and valued at approximately £2,500 if built with new batteries, was assembled using mostly reclaimed materials and repurposed components like a scooter battery management system. Beyond powering his workshop,