What is the appropriate length and thickness for car jumper cables?
1 Answers
For passenger cars, 16 square millimeter copper cables are suitable; for trucks, 25 square millimeter copper cables; and for heavy-duty trucks, 35 square millimeter copper cables, etc. Resistance requirements for jumper cables: Since starting the engine requires high current and the battery voltage is low (resulting in even higher current), jumper cables should have as little resistance as possible. Method for jump-starting a car: Jump-starting a car battery is not difficult. Just be careful not to reverse the positive and negative terminals or cause a short circuit between them. Remember, it's positive to positive and negative to negative—this is the charging connection method to recharge a dead battery. Jump-starting won't cause any issues to the vehicle, as the car voltage is only 12V, and it also poses no harm to the human body.