With the battery adapter, you can use the for Quanyou/Qimo/Hulk battery on for Lithium tools. Easy to Use: The battery converter is portable and convenient to carry and easy to use, it is a perfect battery conversion device. The upper cover of the converter applicable for model: BL1815, BL1815B, BL1820, BL1820B, BL1830, BL1830B, BL1840, BL1840B, BL1850, BL1850B, BL1860, BL1860B, BL1845, BL1890, BL1890B. And the bottom of the converter suitable for Quanyou/Qimo/Hulk lithium battery. This battery adapter is made of premium ABS material, which is sturdy, has stable performance and long service life. Note: This product is only adapter. This product does not include machine and battery. The machine and battery in the product are only used to show the products. Colour:Black & Red Material:Plastic Package Contents: 1 * battery adapter 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.