This adapter can make lithium batteries compatible with 18 v ryobi tools and allows you to enjoy the advantages of longer run time of lithium-ion batteries in your 18 v tools. Features:1. It allows the use of 18v lithium batteries and spare batteries on most dewalt compatible batteries and 18v lithium batteries and spare batteries on most Milwaukee m18 compatible batteries.2. The battery adapter can make lithium batteries compatible with 18 v ryobi tools that use lithium or nickel batteries.3. The maximum initial voltage of the battery (measured without working load) is 20 v and the nominal voltage is 18 v.4. Usb port for charging phones and powering computers using usb, and the usb line is not included.5. Compact and portable, easy to install and disassemble, update your old tools.Note:1. Due to manual measurement, the size may be slightly different. Thank you for your understanding.2. Due to different light conditions and different monitors, the color of the item shown in the photos may be slightly different from the actual object.3. It cannot be used to charge the battery of an electrical tool, this adapter does not fit into any charger.Specifications:Model: dm18rl/dm18gl/mt20dl/mt20rnl/dw18ml (optional)Dm18rl - replacement for converting dewalt /Milwaukee to ryobiDm18gl - replacement for convert dewalt /Milwaukee to craftsmanMt20dl - replacement for convert makita to dewaltMt20rnl - spare for converting makita to ryobiDw18ml - replacement for convert dewalt to MilwaukeeColour: blackMaterial: abs model articleSize of thepackagingNet weightGross weightdm18rl11* 7* 8.3 cm/ 4.33 * 2.76 * 3.27 inches12,5* 11* 9 cm/4,92* 4,33* 3,54 inches120 g/4,23 oz162 g/ 5.71 ozdm18gl10.8 * 7.5 * 9.5 cm/ 4.25 x 2.95 x 3.74 inches12,5* 11* 9 cm/4,92* 4,33* 3,54 inches126 g/4,44 oz169 g/5,96 ozmt20dl11* 7* 4.5 cm/ 4.33 x 2.76 * 1.77 inches 12.5 * 9*6.5 cm/4,92,54 x 2,56 inches100 g/ 3.53 oz135 g/ 4.76 oz mt20rnl 10.8 * 7.7 * 8. 8 cm/4,25* 3,03* 3,46 inches 12,5* 11* 9 cm/* 4,33 x 3,54 inches 145 g/5,11 oz 190 g/ 6.70 ozdw18ml10.5* 7* 5.3 cm/4.13* 2.76* 2.0912.5* 9* 6.5 cm/4.92* 3.54* 2.56 inches108 g/3.81 oz147 g/5.19 ozList of packages:1 * battery adapter1 * instruction (English)