Skip the auto shop - Our mechanics make house calls

Q: How do you jumpstart the battery?

asked by on

How do you jumpstart the battery?

The battery in your car should last for several years without any need for maintenance. However, it will eventually succumb to old age. It’s also possible that your battery will be drained by something else – leaving the hazard lights on, for instance. In these circumstances, you’ll need to jumpstart the battery. Here’s how to do that:

  • First, open the hood and check the battery. If the sides are bulging, do not attempt to jumpstart it. Clean any corrosion off the terminals if the battery is in otherwise good condition.
  1. Park the vehicle with the booster battery close by but don’t let them touch.

  2. Turn on the heater fan, but turn the other accessories off.

  3. Connect the positive clamp to your battery’s positive terminal.

  4. Connect the other positive clamp to the donor vehicle’s positive terminal.

  5. Connect the negative clamp to the donor vehicle’s negative terminal.

  6. Connect the other negative clamp to a piece of exposed metal under your hood (not part of the fuel system).

  7. Start the donor/boosting vehicle’s engine.

  8. Crank your engine.

  9. If it doesn’t start immediately, wait a couple of minutes and try again.

  10. Remove the jumper cables in the reverse order of installation (starting with the negative cable attached to your car).

  11. Have the battery tested and replaced if necessary.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do I adjust the temperature?

The temperature control determines how hot or cold the air that is being introduced to the cabin is. The temperature control is located at the left end of the climate controls. To increase the heat, turn the temperature control clockwise....

Q: How do you dim or brighten the interior lights?

Your car is equipped with adjustable interior lights to provide better visibility during different driving conditions. They automatically turn on when you turn on the headlights, but you can manually control their brightness with the panel dimmer control. Here’s how:...

Q: Battery drained and car won't start

I would recommend having your vehicle inspected by a technician who is qualified to service your hybrid vehicle electrical systems. If your vehicle's 12 volt battery has failed, they should be able to replace it very easily for you and...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.