Adapter Compatibility: Perfectly compatible with Dewalt 20V MAX lithium battery, compatible with Dewalt 20V MAX DCB203, DCB204, DCB205, DCB206, etc. Our battery adapter connector is designed to fit the battery perfectly and is easy to install and disassemble. Step Down Converter: Input voltage: DC 20V; Output voltage: DC 12V; Output current: Maximum 10A; Maximum output power: 120W. Our step-down converters use synchronous rectification technology to further improve conversion efficiency and stability. Increased Safety: Equipped with a built-in intelligent voltage stabilizing chip, it provides intelligent protection against overcurrent, overload, undercharge, overvoltage, undervoltage, overheating, and short circuit. We have improved the low voltage protection. This voltage converter has built-in overvoltage protection. If the battery voltage drops below 14.4V, it will automatically shut off to protect your device from overvoltage damage. HIGH QUALITY AND EASY TO USE: The 18V DC to 12V