Feature: 1. APPLICABLE MODEL: This battery adapter is mainly used to convert for Ryobi 18V lithium battery into 20V lithium battery power tool to use, with good compatibility. 2. GOOD COMPATIBILITY: The reasonable design makes the lithium battery highly fit the adapter, will not come off or shake during use, which is safe and reliable. 3. SAFE OPERATION: With integrated molding design, this lithium battery adapter has a glossy appearance, ensuring smoother installation and safer operation. 4. ABS PLASTIC SHELL: The battery converter housing is made of excellent ABS plastic material, which has good toughness, wear resistance, and long service life. 5. CONVENIENT USE: This power tool battery adapter supports USB output, standard interface, plug and play, which has stable performance and high efficiency. Specification: Item Type: Battery Converter Material: ABS Compatible Battery: For RYOBI 18V Lithium Battery to 20V Lithium Battery (Battery not included). Package List: 1 x Lithium Battery Converter 1 x User Manual