This comprehensive guide provides detailed instructions on how to fix and rebuild NiCd batteries for all types of vehicles. The guide includes a dedicated section titled "How to Rebuild a Battery Pack" that offers step-by-step instructions to help you maximize the power and runtime of your NiCd battery. As a bonus, this guide also includes a valuable guide on "How to Rebuild a Li-Ion Battery," providing you with the knowledge to extend the life and performance of both types of batteries.