Versatile step-down converter for 18V-20V batteries to 12V vehicle power - Energy efficient power: Converts 18V-20V battery power into a stable 12V supply for car use, with efficiency rated at 95% or higher and output current up to 10A. It also provides output voltage options from DC 5V to 13V for compatible devices while maintaining dependable power delivery. - Comprehensive protection system: Built-in safeguards protect both the adapter and connected devices. Features include over-load protection, no-load power-off, over-current protection, and low-voltage protection. The protection system operates continuously to ensure a safe and uninterrupted power supply for automotive applications. - Wide battery compatibility: Designed to work with multiple 18V battery models including BL1820, BL1840B, BL1820B, BL1815B, BL1835, as well as DCB200, DCB201, DCB203, DCB204. The connector fits snugly with the battery for easy installation and removal, making regular use convenient. - Compact and portable design: Approximately 9x6 cm, constructed from LONG LASTING plastic material. Lightweight and easy to carry, ideal for road trips, camping, or any situation where portable power is needed. The compact size delivers consistent 12V output for car appliances wherever you go. Use scenarios - On the road: Power car electronics such as GPS units, dash cameras, or portable cooling devices from an 18-20V battery, without relying on the vehicle’s own power system. - Outdoor and travel: Support camping setups or mobile work areas with reliable 12V power from compatible 18V batteries, enabling operation of essential devices away from mains power. - Emergency backup: Provide a portable, steady 12V power source for essential automotive accessories during outages or remote work scenarios.