Regardless of manufacturers' claims, batteries do not last forever. In fact, the 12-volt battery in your Toyota Corolla will probably last in the vicinity of 4 to 5 years. A battery that is older than 5 years will likely begin to lose its charge more frequently or die altogether. An improperly maintained battery, such as a battery that is allowed to sit unused for long periods, one that is corroded, dirty or subject to overcharging, may last less than 4 years. Whatever the case, removing your Corolla's battery is inevitable. It's also a job you can do on your own.
- Skill level:
- Moderately Easy
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Things you need
- Wrench set
- Battery terminal puller (or small screwdriver)
- Battery terminal/post brush
Put on a pair of work gloves before attempting to change the Corolla's battery. Corrosion or even leaking acid is caustic and capable of burning your skin.
Open the Corolla's bonnet and locate the battery. The exact location may vary depending on the exact year of your car. However, for most Corollas, the battery is on the driver's side of the engine bay, above the wheel well.
Detach any guards covering the terminals. Many Toyota Corollas will have a red, plastic guard in place over the positive terminal.
Use your battery brush to sweep away any corrosion that is present on the terminals. If you don't have a brush specifically designed for cleaning battery posts and terminals, you can use a regular wire brush.
Disconnect the Corolla's negative terminal from the battery. Always disconnect the negative terminal first in order to avoid a possible short circuit. Use the proper size wrench to loosen the bolt that tightens the terminal clamp. Then remove the terminal with a terminal puller. If you don't have a terminal puller, use a screwdriver to loosen the clamp by gently prying it open. Then slide the terminal off the post.
Remove the bracket that holds the battery in place. Again, the exact configuration of the bracket may vary depending on the year your Corolla was made. Most will have a single metal bracket extending across the top of the battery. Use the correct size wrench to loosen the bolts at both ends of the bracket. Then pull the bracket free.
Disconnect the Corolla's positive terminal. Utilise the same technique used for disconnecting the negative terminal.
Grab the battery firmly and brace yourself, as the battery will be heavy. Lift the battery out of the compartment. Then examine the terminals once again. If there is any remaining corrosion, clean it with your brush.
Lift the Corolla's new battery and gently ease it into the compartment. Make certain it is turned correctly so that the positive and negative posts are closest to their corresponding positive and negative cables/terminals.
Hook the new battery up to the Corolla using the reverse procedure. Remember, connect the negative cable last. Also, be sure to securely tighten the terminals and bracket.
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