About this item ASCM 18 , ABOP 6 , ABH 18 Not compatible. 【Use for Fein 18V Tools】:This MT18FEN battery adapter converts for Makita 18V Lithium battery to for FEIN 18V lithium battery, perfect Replacement for FEIN ASCD 18 W4, ASCD 18 W4C, ASCM 18 Fits for FEIN B18A.165.01 lithium battery,which means you can use your a lot of for Makita 18V batteries to for for FEIN 18V Cordless Tools,save your money on new ABS serie 18V battery. 【Compatible with Makita 18V Battery】Converter bottom port compatible with Makita 18V lithium BL1860B / BL1860 / BL1850B / BL1850 / BL1840 / BL1830B / BL1830 / BL1820 / BL1815 etc. Converter top port compatible with FEIN ABS 18, ABS 18 C, ASB 18, for FEIN B18A.165.01 cordless power tools Cordless Power Tools. 【Convert for Fein 18V】Converter top: Compatible with FEIN ASCD 18 W4, ASCD 18 W4C, ASCM 18 series lithium battery power tools; 【for FEIN power tools must be compatible with FEIN B18A.165.01 92604164020, B14A.164.01, 92604175020, B18A.165.01 ABS 18, ABS 18 C, ASB 18, ASB 18 C, ASCD 18 W2, ASCD 18 W2C, ASCD 18 W4,lithium ion battery models】 【Safe Protection】Solid design, ABS high quality material,High temperature resistance, wear resistance and drop resistance, convenient to carry and easy to use.【Attention】It cannot be used to charge the battery of a power tool, and the adapter cannot be plugged into any charger. If you need to charge the power tool battery, use the original battery charger.If you need to charge the power tool battery, please use the original battery charger.