1. Warning: This cable can only support EC-5 interface. Before buy, you must make sure your jump starter uses EC-5, or it will conflict and waste your time and money. 2. Warning: This smart cable can support Peak Current less than 800A. Before buy, you must make sure your jump starter peak current is less than 800A, or it will not support. 3. Anti-short connection protection: Connect the red clip with the black clip, when the power is on, no damage, no sparkle. 4. Anti-reverse charging protection: After the car is started, anti-reverse charge current is less than 1A. 5. All copper material to ensure the best quality and safety protection.