The Assist in starting jump cahregr is compatible with for Makita 18V batteries BL1830 BL1840 BL1850 BL1860 series (Notice:Battery not included)For Jump Starting Car Using Tool Battery,Engine 12V Auto Battery Booster. 11 Gauge booster battery jumper cables for jump starting a dead or weak battery. Ideal for trucks, SUVs, full-size cars, mid-size cars and small/compact cars. Instructions for Use: First, charge the car battery for about 2 minutes and then starting the car.1. Connect the red battery clamp of the jumper cable to the positive terminal (+) of the vehicle, and the black clamp to the negative terminal (-). 2. Insert the battery into the adapter and ensure it is securely locked. 3. Attempt to start the car. 4. Disconnect the connection between the car battery and your tool battery after successfully starting the car. The two giant alligator clamps have strong jagged teeth and springs for excellent grip force. The jaws are strong and make connections easy. And the Jumper Cables has insulating handle to prevent electric shock and protect the safety of users. The jumper starter features non-conductive rubber and a dual-grip design, offering better conductivity, tension, and a secure grip during use. Cables work with top-post and side-terminal 12volt batteries. 11-gauge, heavy-duty, no-tangle cable construction. Ideal for use with mid-size cars, light pickup trucks and light recreational vehicles. It is just an adapter, no battery; Different batches may have different stickers and silk screens, which will not affect the use; Different light or display may cause color difference in the actual product Colour:Photo Color Material:ABS Package Contents: 1 x Car Jump Starters 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.