【Compatibility】 : Compatible With for Milwaukee M18 Battery 18v Series 4811-1815/4811-1820/4811-1828/4811-1840/4811-1850/4811-1860, Etc.Our Battery Adapter Connectors Are Well Made To Fit Your Battery, Made Of Abs Plastic, Heat Resistant And Not Easy to Corrode, Suitable For Indoor and Outdoor Use. (Note: Battery NOT Included)Step Down Converter: Input Voltage: Dc 18v-20v; Output Voltage: Dc 12v; Output Current: 20a Max; Output Power: 240w Max. Our Voltage Reducer Adopted Synchronous Rectification Technology Further Improve Conversion Efficiency And Good Stability【Product Upgrade】:Multi-Protection Design, Voltage Regulator Equipped Smart Chip, Provides Over-Current, Over-Discharge, Over-Load, Over-Voltage, Under-Voltage, Over-Heat And Short-Circuit Multiple Intelligent Protection. We Upgraded The Safety Features of Products, This Voltage Converter Built in Over Low Voltage Protection, Auto Shut off If The Battery Voltage Is Lower Than 14.4v, Protect Your Devices.Enjoy the DIY: Power Adapter is widely used in power wheels, motors, auto trucks, robotics, toys, golf carts, led strip lights, electric fans, screens, monitoring systems, solar panels and other DIY.Quick Terminal Blocks: Just lift up the lever, insert the stripped wire, and press the lever closed, and hold tight to make a solid connection.If not used for a long time, please be sure to remove the battery form the adapter.