In this detailed tutorial, Micah from EbikeSchool.com provides an in-depth guide to building a custom 24-volt lithium-ion battery for electric bicycles using 18650 battery cells. The video walks viewers through every critical step of battery construction, beginning with careful design planning on paper, where the creator meticulously maps out cell configuration, positive and negative orientations, and connection strategies. The process involves selecting high-quality 18650 cells, measuring their voltage to ensure uniformity, and using precise techniques like hot gluing cells together and spot welding nickel strips to create series and parallel connections. The instructor emphasizes critical safety considerations, such as removing jewelry, wearing gloves, and using protective eyewear during welding. A key component of the battery assembly is integrating a Battery Management System (BMS), which requires careful soldering of sense wires and connectors. The tutorial concludes with protective measures like wrapping the battery in foam and heat-shrink tubing, resulting in a compact, custom battery pack suitable for low-powered electric bicycles. By providing this comprehensive guide, the video empowers DIY enthusiasts to understand battery construction principles and create their own custom energy storage solutions.
