Perfect Conversion: Converts for Craftsman V20 20V lithium batteries (CMCB204, CMCB205 Max series) to work forCraftsman 19.2V C3 cordless power tools, saving you from buying extra 19.2V batteries. Wide Compatibility: Specially designed for Craftsman 20V V20 battery series and compatible with most for Craftsman 19.2V C3 cordless drills, drivers, saws, and other power tools. Stable & Safe Connection: Built-in premium contacts ensure stable power transmission, no overheating or loose connection, protecting your batteries and tools during use. Easy to Use: Plug-and-play design, no extra tools or modifications required, simply attach the adapter to your 20V battery and connect to 19.2V tools directly. Durable Construction: Made of high-quality ABS and metal materials, sturdy and wear-resistant for long-term daily use, ideal for replacement and upgrade.