Among others, Build a Battery-Powered Electric Bicycle serves the amateur craftsman who chooses to build their own. From how to choose the components, to how to put them together for a finished home built bicycle conversion, the authors give commentary and specific data for future modifications to improve performance. It is also useful to the purchaser of a factory built electric bicycle to understand the capabilities of his purchase and to judge to worthiness of his brand-new bike. The description, performance, and cost of over 45 commercial electric-powered bicycles is included. The authors include test results of sample configurations they have built, with component-cost ranges from under $100 to over $600. These features are also attractive to the amateur craftsman and mechanical engineers.