Universal Compatibility: This DM18M battery adapter is designed to convert for and 20V batteries for use with for 18V tools, ensuring seamless compatibility with Bl1830 and Bl1850 models. Efficient Power Conversion: Experience efficient power conversion with this adapter, which allows you to use your existing for or for batteries with for tools, saving you the need to invest in additional batteries. and Reliable: Built with robust materials, this adapter ensures durability and reliability for continuous use, making it an essential accessory for your power tools. Color: As Shown Material: Plastic+Metal Package Contents: 1 x DM18M Battery Adapter Converter 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.