Features: 1. Voltage: The maximum initial battery voltage (no workload measurement) is 20 volts and the nominal voltage is 18 volts. 2. Replace the battery: Compatible with 20V MAX battery, allows battery replacement. 3. USB port: Equipped with a USB port for charging mobile phones and other USB-powered devices. USB cable not included. 4. Applicable objects: Designed for use with most 18V batteries. 5. Wide range of applications: Compatible with various chargers. For charging the battery, use the battery charger. Details: 1. The adapter enables compatible batteries to be used with 18V tools, helping extend the life of your Li-Ion battery system. 2. Suitable for 18V power tools. The adapter's USB port can charge small electronic devices such as mobile phones. Specifications: Model: DM18RL Material: Plastic Color: As shown in image Package Contents: 1 x Battery Converter Adapter (battery not included) Note: Light and display settings may cause slight color differences between the image and the actual item. Measurement error allowed is +/- 1-3 cm.