What Gauge Should Jumper Cables Be for Cars?

1 Answers
PiperDella
07/29/25 1:38pm
For passenger cars, use 16-gauge copper cables; for trucks, 25-gauge copper cables; and for heavy-duty trucks, 35-gauge copper cables. Always remember to connect positive to positive and negative to negative. Jump-starting a car won't cause any issues, as the vehicle voltage is only 12V, which is harmless to humans. Avoid touching the jumper cables and battery during the starting process. Here are some relevant tips: 1. Precautions: If battery acid leaks and comes into contact with skin or eyes, rinse immediately with plenty of water and seek medical help. 2. Maintenance: For long-term parking, start the car approximately every 5 days and let the engine idle to allow the alternator to charge the battery.
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