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, automatic shutdown if battery voltage is lower than 14.4V, protecting your battery and 12V devices. Compatibility: Perfectly compatible with 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 designed, fits your battery perfectly, easy to install and remove. Better Safety: Voltage regulator with built-in smart chip, features overcurrent, overvoltage, undervoltage, overload, low load, short circuit, overheating, multiple intelligent protections, protecting your devices from excessive current damage. The battery adapter also has an extra fuse holder and 30A fuse, ensuring you can use it safely. Easy to Use: We combine the battery adapter and voltage converter with 2 heat-resistant cables and fuse holders, easier to use, just install the battery into the battery adapter and then connect the voltage converter to your device. (Note: Battery is NOT included). Widely Applicable: This converter is suitable for various 12V devices, perfect for upgrading power tools, ride-on toys, golf carts, trucks, speakers, monitoring equipment, LED light strips, work lights or robotics DIY, etc. Color: red Material: plastic Package contents: 1 x Converter 1 x Wheel battery adapter 1 x Terminal 3 x 30A Fuse