This comprehensive guide provides detailed instructions on how to fix and repair NiCad batteries for cordless drills. It covers the process of rebuilding NiCad batteries, offering a cost-effective alternative to replacing them. With the price of a new NiCad battery ranging from $50 to $80, this guide can save you significant money, especially if you have multiple batteries that need repair. The guide covers a step-by-step process, making it easy to understand and follow, even for those with limited experience in battery repair. Learn how to identify common battery problems, disassemble and clean the battery pack, test and replace individual cells, and reassemble the battery for optimal performance. This guide is an invaluable resource for anyone looking to extend the life of their cordless drill batteries and save money on replacements.