Allows the use of 18 V lithium batteries and replacement batteries in most batteries: BL1860B / BL1860 / BL1850B / BL1850 / BL1840 / BL1830B / BL1830 / BL1820 / BL1815, etc.The maximum initial voltage of the battery (measured without a workload) is 20 volts, the nominal voltage is 18 voltsThis adapter can make the indicated lithium batteries used in the for 20V MAX cordless lithium tools, and allows you to enjoy the benefits of extended operating time of lithium-ion batteries in your existing 18V tools.Built-in short circuit protection for safe use of your mobile device.Colour: Blackmaterial: plasticThis MT20DL adapter is designed for BL1815 BL1830 BL1860 lithium battery. Replace De walt 20V Li-ion batteries.Used for tools20V battery with this MT20DL adapterCan not charge by De walt charger.Do not leave 20V battery plugged into the adapter after working.Can not be used for battery charging,this adapter not fit into any chargers.If you need to charge your batteries,Please use the original battery chargers.Package Includes:1 x AdapterOnly the above package content, other products are not included.Note: Light 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.