![]() You don’t want the cars to touch because there will be an open circuit and potentially drain the good battery. However, it’s worth noting that you’re about to handle a lot of electricity. You don’t normally park cars like this anyway. Position the cars so they’re not touching.You might even need to replace the terminals before jump starting the car. Corrosion at the posts can eat away at the terminals if you don’t clean it off. Safety glasses or sunglasses, nitrile or cloth gloves - you should always protect your eyes and hands when you’re around an open engine. Rings seem like an obvious hazard, but a necklace or bracelet can be just as dangerous. Let’s talk about how to jump a car safely. Jumping a car is simple, but also potentially hazardous. Safety Checklist Before You Jump Start a Car Is it time for a fresh start? Visit one of our Interstate All Battery Center locations for a free battery test to find out. When you get a jump, you need a new battery. A battery test can identify whether you need a professional auto repair or a simple battery replacement. Ask for a comprehensive charging and electrical system test. Instead, go to the nearest repair shop or favorite battery store. Jumping a car is easy, but it’s only a temporary fix. So the engine's idling behavior may turn erratic, transmission shifting gets rough and a few other issues may pop up until your car's computers rebuild their data sets. It’s just as if you disconnected the battery without a memory saver. On top of that, your car’s onboard computers have lost their memory. That’s why your car battery might be dead after sitting five days. Car batteries start losing their ability to store power if they’re not fully charged. Sitting with less than 50% charge for just a few hours will shorten a battery’s total lifespan, if not ruin it right then. If you have a battery charger or trickle charger, you might be able to revive the battery a little. To charge a car battery by driving, you’d have to drive for hours at highway speeds and strain the alternator in the process. Once you have the car going again, don’t bother trying to recharge it by driving. Again, starting with the car you jumped - and make sure they don’t touch each other or anything else. If the dead car doesn’t start at first, give it a few minutes before trying again. Attach the black cables, one to the good car’s negative post and the other to an unpainted surface on the dead car.Clamp to the cars’ positive posts, usually red but not always. Attach the red cables first, starting with the good car.You don’t need another car if you have a jump starter. Park the other car near yours, not touching, and turn it off.Get jumper cables or a portable jump starter.Switch off headlights, air conditioner, wipers, everything electronic.Here’s a few reminders before we get into the proper way to jump a car. If you’re asking how to jump a car, you’re probably having a stressful day.
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