This adapter can make listed lithium batteries use on 18V LITHIUM cordless power tools , and let you Enjoy the advantage of extended run-time of - Batteries on your existing 18V tools. Maximum initial battery voltage(measured without a workload) is 20volts,Nominal voltage is 18volts Notice: Allows for use of 20V MAX batteries and replacement batteries in most batteries of and for use of 18V Lithium- batteries and replacement batteries in most of batteries of MILWAUKE ,etc. Use for 18V LITHIUM cordless power tools.Can not be used for battery charging, this adapter will not fit into any chargers. If you need to charge your batteries ,please use the original battery chargers. Material: plastic colour: black Package Contents: 1 x DM18BSL Lithium battery adapter(Tools and batteries not included) Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.