and high quality. Fix with screw holes: The adapter can be fixed in any position to facilitate organization. When using, pay attention to the black wires and the red wires not to touch each other to prevent short circuit. for Lithium Batteries:18V Li-ion Battery.BL1840,BL1850,BL1860 etc.Suitable for 18V Battery. Easy to Use: Ideal for use with trucks, SUVs, full-size cars,Electric vehicle, mid-size cars and small/compact cars vehicles. Connect the red clamp to the positive terminal of the battery and the black clamp to the negative terminal for quick and hassle-free operation. Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:As Shown Material:plastic Power Supply: 18V Li-ion Battery(Not included batteries) Adapter Only, Not Included Tools 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.