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 operate Ryobi 18V tools. Built-in 5V 2.1A (Max) USB charging port allows charging of mobile devices when needed. Note: This adapter is not designed to fit into any charger. 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: - Enables compatible lithium-ion batteries to power Ryobi 18V cordless tools - Provides extended runtime for existing tools - Simple, durable, and convenient design - For long-term storage, disconnect from the battery - This adapter does not charge batteries Warnings: 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, not chargers. Do not attempt to charge a 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 the actual item. Measurement tolerance: +/- 1-3 cm.