Battery Adapter Converter For Milwaukee 18V M18 Lithium Battery,, Bl1860B. ?Purchase NOTE?: 1. The top of this adapter is NOT suitable for use with Milwaukee old V18 tools or NiCD/NIMH battery tools; 2. It does NOT support charging Makita batteries with Milwaukee chargers (please use original charger); 3. The adapter top is compatible with most M18 tools, but it is NOT a panacea. IF the adapter NOT clip into place and wouldn't power up the equipment.It is necessary to trim the protrusion on the end of the adapter to be compatible. ?Converter Function?: This MT20ML-adapter only can compatible with Makita 18V lithium slide battery to make them work on Milwaukee M18 18V Lithium-Ion cordless tools. Let you enjoy the benefits of extended lithium ion battery operation time on existing 18V tools instruments. ?Applicable Battery Models?: The bottom of this adapter is only compatible with Makita 18V lithium li-ion batteries: BL1860B, BL1860, BL1850B, BL1850, BL1840, BL1830B, BL1830, BL1820, BL1815, etc.?NOTE?: Can not be used for power tool battery charging, this adapter will not fit into any chargers. ?Replacement for M18 Lithium Battery?: The top of this adapter can compatible with Milwaukee M18 18V lithium Ion battery power tools; Replacement for Milwaukee 18V battery: M18 48-11-1811 48-11-1815 48-11-1820 48-11-1822 48-11-1828 48-11-1840 48-11-1841 48-11-1850 48-11-1852 48-11-1860 48-11-1890 48-59-181 48-59-1850 etc. ?Durable and Convenient?: This Cordless Power Tools Adapter made of ABS material, strong and durable. Professional compact design and easy installation. Convenient to carry and easy to use. Size about 4.33x2.76x2.0inch. The maximum output battery voltage (measured without workload) is 20 volts, the nominal voltage is 18 volts.