Instead, attach that clamp to an unpainted, metal part of the car, such as a shiny, clean nut on the engine block. Best to recharge using a battery charger overnight then it gets charged all the way to its max. Yes No. Co-Authored By:. In some cases, the car with the dead battery will be able to be started immediately, but in others it will need some time to charge. Safety First You should consider all safety risks before performing any basic maintenance or repair on your car.
If you attach a clamp incorrectly, stop before you start the cars.
How to Jump Start a Car Battery
How should I connect the negative lead? Instead, attach that clamp to an unpainted, metal part of the car, such as a shiny, clean nut on the engine block. Jumper cables are the most popular tool used to jump start cars because they are inexpensive and easy to store. Use the toothbrush to scrub away any signs of corrosion you see on your battery terminals. Instead, find a spot such as a clean bolt in the engine block. Jumpstarters like the Noco Geniuscan also charge smartphones and other devices via their USB ports. If the Jump-Start Fails If the jump fails to start your car after a few short attempts, or if the car starts but then dies again, you have some other issues you need to address.