How to Disconnect a Car or Truck Battery

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소개

It's always a good idea to disconnect the battery before working on your vehicle's ignition system or other electrical components. (If you need to fully remove or replace the battery, follow this guide instead.)

This guide uses a Toyota Corolla to demonstrate the procedure, which is similar for most motor vehicles.

Note: Disconnecting your battery may erase certain stored settings, such as radio/navigation presets and power window memory. Consult your owner's manual for details.

필요한 것

1 단계 How to Disconnect a Car or Truck Battery

How to Disconnect a Car or Truck Battery, How to Disconnect a Car or Truck Battery: 1 단계, 이미지 3개 중 1개

How to Disconnect a Car or Truck Battery, How to Disconnect a Car or Truck Battery: 1 단계, 이미지 3개 중 2개

How to Disconnect a Car or Truck Battery, How to Disconnect a Car or Truck Battery: 1 단계, 이미지 3개 중 3개

Before you begin, switch the ignition off and remove the key.
Make sure the transmission is in Park (or first gear if you have a manual gearbox) and that the parking brake is engaged.
Put on work gloves and safety goggles if you have them available.
In addition to being dirty, the battery contains corrosive agents and may release flammable gases.
Gloves can also help protect you from an unpleasant shock if you accidentally mishandle the battery.

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2 단계 Open the hood (bonnet)

How to Disconnect a Car or Truck Battery, Open the hood (bonnet): 2 단계, 이미지 3개 중 1개

How to Disconnect a Car or Truck Battery, Open the hood (bonnet): 2 단계, 이미지 3개 중 2개

How to Disconnect a Car or Truck Battery, Open the hood (bonnet): 2 단계, 이미지 3개 중 3개

Most motor vehicle batteries are located in the engine bay, under the hood (a.k.a. bonnet). If your battery is located elsewhere, skip to Step 5.
If you're not sure, simply continue reading.
Pull the hood release lever. It's usually located inside the car, near the steering wheel.

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3 단계

How to Disconnect a Car or Truck Battery: 3 단계, 이미지 3개 중 3개

Raise the hood by simultaneously lifting and pressing up on the hood latch release (usually located beneath the front edge of the hood, near the center or center-right).

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4 단계

How to Disconnect a Car or Truck Battery: 4 단계, 이미지 3개 중 3개

At this point, depending on the vehicle, your hood may raise and support itself automatically.
If not, use one hand to hold the hood open temporarily while securing the hood with the prop rod:
Lift one end of the prop rod up or out to release it from the front area of the engine bay.
Swing the end of the prop rod up and slide it into the cutout on the underside of the hood.
Make sure the hood is well secured before you let go with your other hand, or it may fall and injure you.

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5 단계

How to Disconnect a Car or Truck Battery: 5 단계, 이미지 3개 중 3개

Locate the battery. It's normally rectangular and roughly 8-14" across.
The battery may be easy to spot, or it may lie under a plastic cover—usually marked with positive (+) and/or negative (-) symbols.
On some models, the battery may be located in the trunk—usually under or behind the trunk lining. Look around or consult your owner's manual.

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6 단계

How to Disconnect a Car or Truck Battery: 6 단계, 이미지 3개 중 3개

Using a correctly sized wrench or socket, loosen the nut/bolt securing the cable on the negative battery terminal.
Always disconnect the negative cable first (before removing the positive cable).
The negative terminal may be marked with a minus (-) symbol, or it may be unmarked. The positive terminal is almost always marked with a plus (+) symbol, often in red.
If the nut or bolt spins without loosening, it may be necessary to counter-hold the opposite side with a second wrench or socket.

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7 단계

Remove the cable from the negative battery terminal.
When connecting the battery, it is advised to roughen up the battery terminals and clean the cable clamp beforehand.
Upon reconnecting the battery, make sure to seal the pole connections with an appropriate terminal grease or terminal spray.