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 others. Quickly converts Dewalt 20V or Milwaukee 18V batteries to operate Ryobi 18V tools. Features a built-in 5V 2.1A (max) USB charging port, allowing you to charge mobile devices when needed. Note: This adapter is not designed to fit into any charger. Equipped with built-in intelligent protection chips to guard against 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 run-time benefits. Simple, durable, and convenient design. When not in use for extended periods, remove from the battery. This converter does not support charging the power tool battery. WARNING: 1. Ensure the battery is fully inserted for proper operation. 2. Do not force the battery pack into place; incorrect installation may cause damage. 3. This product is compatible with tools only, not 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 color variations between the image and actual item. Measurement tolerance: +/- 1-3 cm.