Adapter is compatible with BL1830, BL1860, BL1850, BL1840, BL1830, BL1820, BL1815, BL1860B, BL1850B, and BL1830B lithium-ion batteries. Replaces lithium-ion battery models XC 48-11-1815, M18B2, M18B4, M18BX, 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, 48-59-181, and 48-59-1850. Designed for use with 18V lithium cordless power tools. Maximum initial voltage (measured without load) is 20 volts; rated voltage is 18 volts. This adapter allows compatible lithium-ion batteries to be used with 18V cordless power tools, providing extended runtime benefits.Color: Black Material: ABS Note: This adapter cannot charge batteries. Do not attempt to charge a battery while connected to this adapter. Use the original battery charger for charging. Disconnect the adapter from the battery if not in use for an extended period.Package Contents: 1 x MT20ML Battery Converter (Battery and Power Tool Not Included) 1 x English Manual Contents included only as listed. Other items not included. Note: Lighting and display differences may cause slight color variations between image and actual product. Measurement error allowed within +/- 1-3 cm.