Development of a prototype electric bicycle through motor rewinding and recycled lithium-ion batteries for sustainable mobility in the Amazonia region

This study presents the design and implementation of a low-cost prototype for converting standard bicycles into electric bicycles (e-bikes), providing an affordable and sustainable transportation solution for low-income users. By repurposing lithiumion battery cells from discarded laptops, the project promotes resource optimization and contributes to reducing electronic waste. The prototype demonstrated excellent performance during testing, achieving speeds of up to 43.8 km/h and a minimum range of 43 km on a single charge, validating its efficiency and practicality. With a total cost of approximately US$70.00, the system offers significant savings compared to commercial alternatives, while maintaining functionality and environmental benefits. Beyond urban mobility, this methodology has potential applications in motorizing rudimentary agricultural equipment for remote Amazon communities and motorized wheelchairs for socially vulnerable individuals with disabilities. Future improvements could include enhanced energy efficiency through a closed-loop control system, onboard data monitoring, and extended usability. This innovative approach highlights a commitment to sustainability, affordability, and inclusive development, while reducing CO2 emissions and promoting eco-friendly mobility.