This battery adapter for Makita Battery to Ryobi Battery, Convert Makita 18V Battery to Ryobi 18V Tool Use. Compatible with for Ryobi One+ 18V tools Series P7131, P340, P208, P236, P601, P135, P515, P505, P731 etc. Convert Makita 18V battery Replace Ryobi P104 P105 P102 P103 P107 P108 batteries. MT20RNL battery adapter converts for Makita 18v Lithium batteries to Ryobi 18v One+ Plus Lithium Batteries, use for Ryobi 18 Volt cordless power tools. Work great as Ryobi 18v One+ original Lithium Battery, same as the function & compatibility. And lets you enjoy the benefits of extended operating time of lithium-ion batteries on existing 18V tools. Compatible for Makita 18V lithium BL1860B / BL1860 / BL1850B / BL1850 / BL1840 / BL1830B / BL1830 / BL1820 / BL1815 etc. and fit for Ryobi 18V ONE+ System Cordless Power Tools. This battery adapter built-in high intelligent Protection chips against potential damage caused by over-charging, over-discharging, over-voltage, over-current,short-circuit. fire-resistant construction, ensure complete protection for your home and your devices. Specification: Color: green Material: ABS And High Quality ! Type:Battery Convertor Adapter Model:MT20RNL Rated voltage:18 V Rated current:3 A Compatible FOR RYOBI 18V CORDLESS PLUG TOOLS. Package Contents: 4 x MT20RNL Battery Adapter