This adapter can make lithium batteries compatible with Ryobi 18V tools and let you enjoy the benefits of extended runtime of Li-lon batteries on your existing 18V tools. Features: 1. Allows the use of 18V lithium batteries and replacement batteries in most Dewalt and 18V lithium battery compatible batteries and replacement batteries in most Milwaukee M18 compatible batteries. 2. The battery adapter can make lithium batteries compatible with Ryobi 18V tools that use lithium battery or nickel battery. 3. The maximum initial voltage of the battery (measured without workload) is 20V, the nominal voltage is 18V. 4. The USB port for charging phones and powering equipment that uses USB, and the USB line is not included. 5. Compact and portable, easy to install and disassemble, upgrade your old tools. Note: 1. Due to manual measurement, the size may be slightly different. Thank you for your understanding. 2. Due to different lighting conditions and different monitors, the item color displayed in photos may be showing slightly different from the actual object. 3. Cannot be used to charge power tool battery, this adapter will not fit any charger. Features: Model: DM18RL / DM18GL / MT20DL / MT20RNL / DW18ML (optional) DM18RL -- Replacement for converting Dewalt / Milwaukee to Ryobi DM18GL -- Replacement for converting Dewalt / Milwaukee to Craftsman MT20DL -- Replacement for converting Makita to Dewalt MT20RNL -- Replacement for converting Makita to Ryobi DW18ML -- Replacement for converting Dewalt to Milwaukee Color: Black Material: ABS Model Item Size Packing size Net weight Gross weight DM18RL 11*7*8.3cm / 4.33*2.76*3.27in 12.5*11*9cm / 4.92*4.33*3.54in 120g / 4.23oz 162g / 5.71oz DM18GL 10.8*7.5*9.5cm / 4.25*2.95*3.74in 12.5*11*9cm / 4.92*4.33*3.54in 126g / 4.44 oz 169g / 5.96oz MT20DL 11*7*4.5cm / 4.33*2.76*1.77in 12.5*9*6.5cm / 4.92*3.54*2.56in 100g / 3.5 3 oz 135g / 4.76oz MT20RNL 10.8*7.7*8. 8cm / 4.25*3.03*3.46in 12.5*11*9 cm/ 4.92 * 4.33 * 3.54 inch 145g / 5.11 oz 190g / 6.70oz DW18ML 10.5*7*5.3 cm/4.13 *2.76*2.09 12.5*9*6.5 cm/4.92*3.54*2.56in 108g / 3.81 oz 147g / 5.19oz Package list: 1 * battery adapter 1 * instruction (English)