[Applicable tools]This adapter can make listed lithium batteries use for 18V lithium cordless power tools, and let you enjoy the advantages of extended run-time of Li-Ion Batteries on your existing 18V tools. [Notice]It cannot be used to charge the battery of power tools. This adapter is not suitable to charge power tool batteries. If you need to charge the power , please use the battery charger. [Material]Made of sturdy structure and high-quality plastic for safe and use. Type: Battery Convertor Adapter Model: MT18ML adapter is compatible with BL1830 battery, including BL1820, BL1830, BL1840, BL1850, BL1860, BL1840B, BL1850B, BL1860B, BL1890B, etc. The products are only used for flexible conversion between one power tool and another lithium battery, and do not involve any other ! The products are only converter, not charger, not battery, not machine, also can not recharge battery by it. Material: Plastic colour: black Package Contents: 2 x Battery Adapter (no battery, no tool) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.