[Step-down Converter]: Input Voltage: DC 18V-20V; Output Voltage: DC 12V,DC 5V-13V; Output Current: 10A Max; Efficiency: equal 95%. Ideal for 20V V20 battery users, Featuring robust over-current and short-circuit protection, it ensures safe and uninterrupted power supply to a variety of all car appliances. [Compatibility]: Perfectly Compatible with for V20 20V MAX batteries CMCB202 CMCB201 CMCB204 CMCB204-2 CMCB202-2 CMCB204-OPE CMCB209 etc. 18V to 12V step-down converter offers seamless compatibility and stable performance when powering diverse automotive devices. This versatile adapter allows efficient for battery use across applications, enhancing convenience for outdoor activities and car applications. [Convenient Lighter Interface and Innovative Design]: Designed with a convenient lighter interface, making it effortless to connect and power car appliances. Its simple and convenient design eliminates the need for extra installation steps or complicated wiring, ensuring a worry-free user experience. [High-Quality Materials, , and Reliable]: Crafted from materials such as fireproof PC+ABS and featuring 16 AWG wires and efficient cooling mechanisms, this 20V to 12V adapter for batteries guarantees long-lasting durability and consistent performance. Engineered to withstand regular use and harsh conditions, it delivers reliable power conversion in various environments, ensuring exceptional reliability over time. Note: Installation guide not included, Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use 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.