This battery adapter converts Makita 18V batteries to be used with Ryobi 18V tools. Compatible with Ryobi ONE+ 18V tools including models P7131, P340, P208, P236, P601, P135, P515, P505, P731 and more. Allows use of Makita 18V lithium batteries such as BL1860B, BL1860, BL1850B, BL1850, BL1840, BL1830B, BL1830, BL1820, BL1815 with Ryobi 18V ONE+ system cordless power tools. The MT20RNL adapter enables extended runtime on existing 18V tools while maintaining full functionality and compatibility. Built-in intelligent protection chips provide safeguards against over-charging, over-discharging, over-voltage, over-current, and short-circuit. Features fire-resistant ABS construction for enhanced safety. Rated voltage: 18V. Rated current: 3A. Color: Green. Package includes: 1 x MT20RNL Battery Adapter.