In this detailed tutorial, Micah from EbikeSchool.com demonstrates how to construct a 48V 20Ah lithium battery for e-bikes using Maker Batteries kit, eliminating the need for a spot welder. The video provides a step-by-step guide that begins with measuring and verifying the voltage of battery modules, then carefully arranging and hot gluing the modules together. The instructor meticulously explains the soldering process, emphasizing the importance of minimal heat transfer and precise technique when connecting nickel strips between cell groups. Key steps include tinning nickel strips between cells, creating series connections, and attaching the Battery Management System (BMS) with careful soldering. The tutorial covers critical details like proper wire placement, heat shrink wrapping techniques, and using tools like a soldering iron and heat gun. Micah demonstrates how to connect individual cell groups, solder BMS wires in sequence, and professionally finish the battery with protective foam and heat shrink packaging. This comprehensive guide is designed to help DIY enthusiasts safely and effectively build their own high-quality lithium battery for electric bikes, providing an accessible alternative to professional battery construction methods.
