Adapter 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 is 20 volts (measured without load), with a rated voltage of 18 volts. This adapter allows compatible lithium-ion batteries to be used with 18V cordless tools, providing extended runtime benefits. Color: Black Material: ABS Note: This adapter does not charge batteries. It cannot be used to charge power tool batteries. To charge the battery, use the original charger. 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 include only the items listed above. Other products are not included. Note: Lighting effects and monitor settings may cause slight color differences between the image and the actual item. Measurement tolerance: +/- 1-3 cm.