Compatible with Ryobi ONE+ 18V tools, models P7131, P340, P208, P236, P601, P135, P515, P505, P731, etc. 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, etc. Quickly converts Dewalt 20V or Milwaukee 18V batteries to work with Ryobi 18V tools. Built-in 5V 2.1A (Max) USB charging port allows you to charge mobile devices when needed. Note: This adapter does not fit into any chargers. Equipped with built-in intelligent protection chips to prevent damage from over-charging, over-discharging, over-voltage, over-current, and short-circuit conditions. Product Features: This adapter enables compatible lithium-ion batteries to power Ryobi 18V cordless tools, providing extended runtime for your existing tools. Simple, durable, and convenient design. For long-term storage, remove the adapter from the battery. This converter does not support charging of power tool batteries. 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 designed for use with compatible 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: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance: +/- 1-3 cm.