Built-in Battery Lock and PCBA: This conversion adapter features a built-in battery lock and a protective circuit board (PCBA), ensuring secure and safe operation during use. Wide Compatibility: Designed to be compatible with both Milwaukee and Makita batteries, this adapter offers versatile functionality, making it an essential tool for users of both brands. Advanced Technology and Quality: Utilizing advanced technology, this adapter is crafted to high-quality standards, making it an ideal replacement for your old or broken adapter, ensuring seamless performance. High Efficiency and Reliability: Experience strong performance and stability with this adapter, which is engineered for high efficiency and reliability, providing consistent power transfer. Durable and Long-lasting: Constructed with durability in mind, this well-made battery conversion adapter is sturdy and built to last, ensuring long-term use and value for your investment.