Buck Converter: Input Voltage: DC 18V-20V, Output Voltage: 12V Max 20A, Output Power: 240W. Compared with other converters with a maximum current of 10A, this converter has a higher limit, allowing for a larger output current and greater power usage. Compatibility: The Power Wheel Battery Adapter is compatible with the Li-ion series, such as 48-11-1812, 48-11-1815, 48-11-1820, 48-11-1828, 48-11-1835, 48-11-1840, 48-11-1850, 48-11-1852, 48-11-1860, 48-11-1862, 48-11-1865, 48-11-1880, etc. Multiple Protections: This buck converter has built-in overvoltage/low voltage protection. Provides overcurrent, overload, underload, overvoltage, undervoltage, overheating and short circuit intelligent protection. Wide Application: This battery adapter is designed to convert 18V to 12V power supply, suitable for electric wheels, remote control toys, golf carts, robots and other DIY projects. Note: Please pay attention to the positive and negative wires when wiring. If the adapter cannot be used for a