[Work for / 18V Li-ion Battery]: Our AR20DL battery adapter only fit for / 18V lithium battery to replace for 20V li-ion battery. (Battery not included). [Well Compatible]Fits well for 20V MAX XR Cordless Tools, which means you can use your old for 18V batteries to for 20V MAX XR power tools. [AR20DL Advantage]This adapter can make listed lithium batteries use for 20V tools , and let you Enjoy the benefits of extended run-time of Li-Ion Batteries on your existing 20V tools. [Material ]Made of high quality ABS plastic, solid design, made of high quality material, and safe, convenient to carry and easy to use. [Easy to Use]: The AR20DL battery adapter is really easy to use. Just insert the 18V battery into our AR20DL adapter; and then pull both into the base of 20V dewallt power tools, then you can use the dewallt 20v power tools as normal. Note: please remember to remove the battery when not in use. [Notice]It cannot be used to charge the battery of a power tool, and the adapter cannot be plugged into any charger. If you need to charge the power , use the original battery charger. Color: Black Material: ABS Package Contents: 1 * Battery Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.