[Compatible for C 18V Battery]: Perfectly compatible for C 18V ithium-ion batteries. Our battery adapter connector is exquisitely designed to tightly fit your battery, making it easy to install and remove. The battery adapter has overload, no-load power-off, overcurrent, and low voltage protection. [Convenient lighter interface and innovative design]: Designed with a convenient lighter interface, it is easy to connect and power automotive appliances. Its simple and convenient design eliminates additional installation steps or complex wiring, ensuring a worry free user experience. [Widely applicable]: This adapter can be used as a portable charger or 12V regulator, suitable for various 12V devices. Perfect for upgrading power tools and enjoying DIY: Power adapters are widely used in electric wheels, motors, cars, trucks, robots, toys, golf carts, LED light strips, fans, screens, DIY toys, LED lights, monitoring systems, solar panels, and other DIY applications. NOTE:This product does not come with a battery. Please carefully confirm if you have the same battery as described below, otherwise do not place an order! If the product cannot function properly due to battery mismatch after placing the order, the buyer is responsible for it themselves! [Buck converter]: Input Voltage:DC 18V-20V Output Voltage:DC 12V, DC 5V-13V Output Current:maximum 10A Efficiency: equal 95%. Very suitable for golf carts, electric wheels, DIY toys, remote-controlled cars/trucks, LED lights, cameras, etc. Built in low voltage protection, if the battery voltage is below 14.4V, it automatically shut down to protect the battery and 12V device. Color:Black Material:plastic Package Contents: 1 * DIY Adapter (Battery not included) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.