[Use for Fein 18V Tools] This MT18FIN battery adapter converts 18V lithium batteries to fit FEIN 18V tools, serving as a compatible replacement for FEIN ASCD 18, ASCD 18 W4C, ASCM 18, and fits FEIN B18A.165.01 lithium battery models. Use your existing 18V batteries with FEIN 18V cordless tools, helping reduce the need to purchase additional FEIN-specific batteries. [Compatible with 18V Battery] The converter's bottom port is compatible with 18V lithium batteries including BL1860B, BL1860, BL1850B, BL1850, BL1840, BL1830B, BL1830, BL1820, BL1815, and similar models. The top port is designed to fit FEIN ABS 18, ABS 18 C, 18, and tools requiring B18A.165.01 battery compatibility. [Convert for Fein 18V] The adapter's top connector supports FEIN ASCD 18, ASCD 18 W4C, ASCM 18 series tools. Compatible with devices using B18A.165.01 (92604164020), B14A.164.01 (92604175020), ABS 18, ABS 18 C, 18, 18 C, ASCD 18 W2, ASCD 18 W2C, and other compatible lithium-ion battery models. [Safe Protection] Features a solid design made from high-quality ABS material. Resistant to high temperatures, wear, and drops. Lightweight and easy to carry. Simple to use for convenient power tool operation. Note: This adapter does not charge batteries. Do not plug the adapter into any charger. To charge batteries, always use the battery charger. Color: Orange Material: ABS Package Contents: 1 x Battery Adapter (battery and tool not included) Only the items listed above are included. Note: Lighting and display settings may cause slight color differences between the product image and actual item. Measurement may vary by +/- 1-3 cm.