How To Know If Battery Is Bad

5 min read

How To Know If Battery Is Bad – Car batteries help start the engine, turn on the lights, power the car’s computer and more. These important features are helpful in learning how to disconnect and connect a car battery.

Improper installation of a new battery may permanently damage the battery, destroy the module/computer, blow a fuse, or cause personal injury. Read on to learn how to safely connect, disconnect, and restart your car battery.

How To Know If Battery Is Bad

How To Know If Battery Is Bad

Note: These steps are intended as general guidance when performing the tasks listed below. Always consult your vehicle’s owner’s manual before attempting these services. Some vehicles may require advanced tools to program a new battery, save the vehicle’s memory, or shut down the vehicle’s high voltage system. Some vehicles may require you to enter a code to restart wireless functionality after replacing the battery. Some vehicles may have multiple batteries installed. When in doubt, talk to your local experts at Firestone Complete Auto Care and let us take care of the rest.

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The first step is learning how to properly disconnect a car battery safely. First, turn off the engine and all electrical components. Once the vehicle is fully started, locate the battery.

NOTE: Never remove the car battery while powering the vehicle. This could result in vehicle damage or personal injury.

Many modern vehicles place the battery under the hood. However, some automakers may install it in stock. If you have difficulty finding the instruction manual, please refer to the instruction manual.

Now that you have located your battery, it’s time to locate your car’s battery terminals. The cathode is indicated by a minus sign (-). The anode has a plus sign (+) and may have a red plastic cover.

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Safety disclaimer: Do not touch both terminals with the key at the same time. This allows you to send electricity through the key.

The positive and negative ends of the battery cable have nuts or bolts that connect to the corresponding battery terminals. Your task is to disconnect both. However, do not remove the anode before the cathode. It may cause electric leakage. Make sure to disconnect the battery’s negative terminal first.

You’ll likely find a strap or wedge to secure the battery in place. Loosen the nut with a wrench and remove the battery holder.

How To Know If Battery Is Bad

Now remove the battery but be careful of its weight. On average, a car battery weighs about 40 pounds. So make sure you’re ready to put your feet up. Also, make sure the battery is kept horizontal when removing it from the vehicle. This will prevent battery liquid from splashing out. Then place the battery on a flat, dry surface.

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The negative and positive cables are a sufficient distance from the battery terminals. The battery is placed on a flat surface. And most importantly, it’s safe because you were careful when removing the car battery.

If you can check all of these boxes, you’re ready to learn how to properly connect a car battery.

Do not install the replacement battery (or existing battery if in good condition) until the cable contacts and terminals are free of corrosion and debris. Follow the steps in this blog post to do it right: How to Clean Battery Terminals Using What You Already Have

Installing a new or existing battery can reset your car’s clock. Once you reset the time to the correct time, you’re done.

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You never know when you will need to start your car or when someone will need to start your car. Neither situation needs to happen at a convenient time. But if you at least know how to connect jumper cables to your car battery, the process can be quick.

Once the cable is in place (no spinning belt or pulley hanging when the engine starts), the car will jump. Follow these steps:

If starting up isn’t fun, call Firestone Direct. We will be happy to help you.

How To Know If Battery Is Bad

Do you need more help taking care of your car battery but don’t have time to go to the store to make an appointment, or is it better to leave the process to the professionals? With Firestone Direct, our expert technicians can take care of your car battery needs wherever you are.

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From starting your car to connecting and disconnecting your battery, we’re here to help. Check availability in your area and schedule a mobile booking today.

Do you want to know the best way to use jumper cables to start your car?

Your car’s electrical system is an important part of getting you from point A to point B. Learn how the starter, alternator, and battery work together.

Learn the most common reasons why your car won’t start when you replace the battery with a new one. Learn how to solve these problems and who might surprise you.

Reasons Your Car Battery Keeps Dying

If you have vacation plans, don’t let range anxiety stop you from driving an electric car. Learn how to plan a long-distance electric vehicle trip.

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There’s no simple answer, but based on years of industry experience, we know that three main factors affect car battery life: time, temperature and vibration.

How To Know If Battery Is Bad

The battery gradually degrades and eventually no longer provides enough power to start the engine. This wear and tear can take three to five years, and vehicle usage is a contributing factor to the rate at which the battery deteriorates. Car batteries that are primarily run on short trips may not be fully charged, and car batteries that are parked for long periods of time will naturally discharge on their own. In both cases, a maintenance charger such as a battery charger can help keep your car battery fully charged and prolong its life.

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Heat speeds up the chemical reactions that car batteries use to generate electricity, but it also speeds up battery degradation. In colder northern climates, batteries can last five years or more, while in warmer southern regions, car batteries typically last about three years.

Batteries are stored in harsh environments under the hood, where temperatures can easily exceed 200 degrees F in the hot sun. To combat this heat, automakers are mounting batteries in remote locations, installing heat shields for the batteries, and moving the batteries outside the engine compartment, often in the back seat or trunk floor (below).

Vibration may damage built-in battery components. To minimize the effects of vibration, use special pins to secure the battery in place and prevent it from moving. Missing or loose screws can significantly reduce battery life.

Although less common than the above factors, charging system errors can also reduce battery life. Continuous under- or over-charging will speed up battery deterioration. Some newer cars have Absorbent Glass Mat (AGM) batteries that require careful control of charging rates to maximize battery life, and automakers may adjust charging strategies as the battery ages. may change. Ultimately, if your car battery dies completely, its lifespan will be shortened significantly, even if you can recharge the dead battery and use it again.

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If the starter motor cranks slowly or the battery/charge warning light illuminates on the dashboard, the battery may have a problem. On older car models, flashing headlights can indicate a low battery, especially when the vehicle is idling.

Not all battery failures have obvious symptoms, so take precautions to avoid a dead battery. Check the car battery every time you change the oil. Make sure cable connections are clean and secure and that retaining hardware is securely attached. Once your battery reaches its third year, have it tested annually. Checking your car battery will determine the level of damage so you know when to replace the battery. For more information, see our article What you need to know about car batteries. Members in most areas can request car battery service. Our professional service technicians will come to your location to perform a free diagnostic test on the battery and vehicle’s starting and charging system, and install a new battery on-site if necessary.

To ensure you get a car battery that fits and works correctly for your vehicle make and model, check the battery type, physical dimensions, terminal configuration, cold crank amps (CCA ) or ampere-hour (Ah). Installing the wrong battery can negatively impact your car’s electrical system and cause serious damage if the terminal location causes a short circuit to nearby components. If you’re not sure which car battery to buy, ask an auto repair professional or consult your owner’s manual.

How To Know If Battery Is Bad

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