Step-Down Converter: Input Voltage: Dc 18V-20V; Output Voltage: Dc 12V; Output Current: 20A Max; Output Power 240W Max | | Compatibility: Perfectly Compatible With Milwaukee M18 Battery 18V Lithium Batteries, Works With 48-11-1815, 48-11-1850, 48-11-1820, 48-11-1840, 48-11-1815 Etc. Our Battery Adapter Connector Is Well-Design, Snugly Fit Your Battery, Easy To Install And Remove | | Better Safety: Voltage Regulator Built-In Smart Chip, Features Over-Current, Over-Voltage, Under-Voltage, Over-Load, Low-Load, Short-Circuit, Over-Heat Multiple Intelligent Protection, Protect Your Devices From Overpower Damage. Battery Adapter Also Have Added Fuse Holder And 30A Fuse Ensures You Can Use It Safely | | Easy To Use: We Combine The Battery Adapter And The Voltage Converter With 2 Heat-Resistant Wires ? Fuse Holder, Make It More Easy To Use, Just Install The Battery To The Battery Adapter And Then Connect The Voltage Converter To Your Device. (Note: Battery Not Included) | | Widely Applicabl.