Compatible with Ryobi ONE+ 18V tools, including models P7131, P340, P208, P236, P601, P135, P515, P505, P731, and others. Converts Dewalt 20V or Milwaukee 18V batteries for use with Ryobi 18V tools. Replaces Ryobi P104, P105, P102, P103, P107, P108 batteries. Compatible with Dewalt 18V/20V and Milwaukee M18 18V Lithium-ion batteries, including DCB205, DCB206, DCB204, DCB203, DCB200, DCB201, 48-11-1811, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828, and similar models. Allows quick conversion of Dewalt 20V or Milwaukee 18V batteries to operate Ryobi 18V tools. Features a built-in 5V 2.1A (max) USB charging port for charging mobile devices when needed. This adapter is not designed to fit into any charger. Built-in intelligent protection system safeguards against over-charging, over-discharging, over-voltage, over-current, and short-circuit conditions. Enables the use of compatible lithium-ion batteries with Ryobi 18V cordless power tools, providing extended runtime. Simple, durable, and convenient design. For long-term storage, disconnect from the battery. This converter does not charge the battery. WARNING: 1. Ensure the battery is fully inserted for proper operation. 2. Do not force the battery into the tool; incorrect installation may cause damage. 3. This product is compatible with tools only and is not compatible with chargers. Do not attempt to charge the battery using this adapter. Material: ABS Color: Green Package Contents: 1 x DM18RL Battery Adapter (adapter only, battery not included) Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.