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, and models 48-11-1811, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828, and others. Allows quick conversion of Dewalt 20V or Milwaukee 18V batteries to power Ryobi 18V tools. Features a built-in 5V 2.1A (max) USB charging port for charging mobile devices when needed. Note: This adapter is not compatible with any chargers and cannot be used to charge batteries. Equipped with built-in intelligent protection chips to guard against over-charging, over-discharging, over-voltage, over-current, and short-circuit conditions. Product Benefits: 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. When not in use for extended periods, remove the adapter 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 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, no battery included)