[Compatible with DeWalt 20V MAX Batteries] The jumper cables are compatible with DeWalt 20V MAX batteries. When your car battery dies, you can conveniently start the vehicle using a compatible cordless tool battery. Specifications: 8-gauge booster battery jumper cable for starting weak or discharged batteries. Suitable for trucks, SUVs, full-size cars, midsize cars, and compact cars. Instructions for use: 1. Connect the red clamp to the positive terminal (+) of the vehicle battery and the black clamp to the negative terminal. 2. Insert the compatible tool battery into the adapter and ensure it is securely locked. 3. Attempt to start the vehicle. 4. After successful engine start, disconnect the jumper cable from both the vehicle battery and the tool battery. Note: For best results, use a tool battery charged above 50%. If the first attempt fails, wait a few minutes before trying again. Once the engine starts, disconnect the cable within 30 seconds. The jumper cable features insulated handles for user safety. Color: Yellow Material: ABS Package Contents: 1 x Car auxiliary starter Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.