Weak or dim headlights can often be a sign of a weak car battery when the battery does not have enough power to power the car's electrical accessories, including the headlights. What are the signs of a weak car battery?Дimmed headlights. If the dashboard gradually darkens, it is more likely that the alternator is the culprit. There are several signs of a failed generator: While driving, pay attention to the brightness of your interior lighting. If the above steps show that the battery is working, it's time to take a closer look at the alternator. How do I know if my battery or alternator is bad? Apply petroleum jelly to the terminal to prevent corrosion. Clean existing corrosion with baking soda and water before installing a new car battery. The car battery should be replaced every 35 years under normal use. When do you need to change your car battery? If you need to replace the battery, make sure the new battery has the same electrical specifications and dimensions as the old one. You should check your car's battery about every six months, and most batteries should be replaced every three to five years.

Most cars have a bar or some kind of bracket to hold the battery in place.

Locate the black wire and the minus sign ().

Start at the negative terminal and disconnect the negative cable from the battery.

Park your vehicle on a dry, level surface and apply the parking brake.

The estimate does not include taxes and fees.

Labor is estimated at $44-56 and parts cost between $124 and $146. The average cost to replace a battery is between $168 and $202.

How much does it cost to replace a battery?

Place the new battery in the compartment where the old one was. Loosen the battery clips and remove the old battery. Remove the terminals from the old battery. Keep a close eye on your progress over time as you get older. On average, your car battery lasts between five and seven years. Age is one of the most important indicators for which you may want to replace the battery. How often should you change your car battery? Age of the battery.

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