[Compatible with Makita 18V Batteries] This MT18 MT12 adapter is compatible with Makita 18V batteries, including BL1860B, BL1860, BL1850B, BL1850, BL1840, BL1830B, BL1830, BL1820, BL1815. It can also be used as a replacement for Makita 12-volt Lithium-ion batteries such as BL1021B (BL1016), BL1020B, BL1041B, BL1040B, BL1040, BL1015, 197402-0, 197390, CXT, and fits 12-volt cordless tools. (Battery not included) [Safe Protection] Features a solid design with high-quality plastic material, offering high temperature resistance, wear resistance, and drop resistance. Compact and easy to carry, simple to use. This product is intended solely as a converter for use between specific tools and lithium batteries and is not affiliated with any brand. This item is a converter only, not a charger, battery, or power tool, and cannot be used to recharge batteries. Due to different production batches, labeling may vary randomly and is not customizable; this does not affect functionality. Note: Installation guide not included. Professional installation is strongly recommended. Please verify compatibility to ensure the item meets your requirements. Tips: Product design may be updated periodically. Due to variations in manufacturing batches, the actual product may have minor differences or color variations, which do not affect performance. Color: Black Material: Plastic Package Contents: 1 x Battery Adapter (Adapter only, tool and battery not included)