Suitable for 12V battery adapter, suitable for converting 18V battery to 12V lithium-ion battery, DIY converter suitable for 12V cordless power tools Compatible with for batteries: The adapter is compatible with BL1830 batteries, including BL1820, BL1830, BL1840, BL1850, BL1860, BL1840B, BL1850B, BL1860B, BL1890B, etc. Adapter for 12V battery, compatible with for CB12. 00L 0L 0L CB1L BPL-1220 130503001 130503005, 12V lithium battery This adapter is compatible with for 12V tools and can use the listed lithium batteries for 12V cordless power tools, allowing you to enjoy the advantage of extending the running time of lithium-ion batteries on existing 12V tools. [Material] Non 3D printing, sturdy and , and convenient, can extend the service life of tools. Colour:Black Material:ABS Package Contents: 1 * for 12V 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.