Battery Adapter Step-down Converter: Input Voltage: DC 18V–20V; Output Voltage: DC 12V; Output Current: 20A Max; Output Power: 240W Max. Built-in low-voltage protection; automatically shuts off if battery voltage drops below 14.4V to protect the battery and connected 12V devices. Compatibility: Designed for 18V lithium batteries, including models 48-11-1815, 48-11-1850, 48-11-1820, and 48-11-1840. The adapter connector is precisely engineered for a secure fit, easy installation, and removal. Enhanced Protection: Features an integrated smart voltage regulator chip with over-current, over-voltage, under-voltage, over-load, short-circuit, and over-temperature protection. Includes a fuse holder with a 30A fuse for added safety. Easy to Use: Combines battery adapter and step-down converter with heat-resistant wires and fuse holder. Simply attach the battery to the adapter and connect the output to your device. (Battery not included.) Widely Applicable: Suitable for various 12V devices including power tools, ride-on toys, golf carts, automotive accessories, speakers, monitoring equipment, LED strip lights, work lights, and robotics DIY projects. Color: Red Material: Plastic Package Contents: 1 x Step-down Converter, 1 x Battery Adapter, 1 x Terminal, 3 x 30A Fuse Note: Actual color may vary slightly due to lighting and screen settings. Dimensions are subject to a tolerance of ±1–3 cm.