Everything You Need To Know About Car Batteries

Everything You Need To Know About Car Batteries. This post aims at answering the following questions: How do I know what battery to buy for my car? How many times can you start a car before the battery dies? What makes a car battery go bad? What should I know about car batteries?

Everything You Need To Know About Car Batteries


Although car batteries have a long lifespan, they usually fail when you least expect them. Approximately 100 million car batteries are changed each year only in the US. A dead battery may be caused by a variety of things, but it’s uncommon that it’s due to a fault from the manufacturer. Understanding the basics of vehicle batteries and what to do when they fail may help you get back on the road faster. Your car’s battery is vital to its operation. The state of your engine has an impact on how well or how poorly your car will operate.

If you want to be able to maintain your vehicle battery on your own, you’ll need to know all there is to know about your complicated equipment. Many vehicle owners, however, believe that they just need to pay attention to the engine and ignore the battery. Don’t make such a rookie blunder. This thorough book will teach you everything you need to know about vehicle batteries, from how they function to how long they last to the various kinds and how to maintain them.

See also: Most expensive cars to insure (new cars)

What’s the purpose of a vehicle battery?

The battery is the most important part of your vehicle since it powers it up. You can’t go anywhere without it. “Cells” are the basic building block of batteries. Cars’ batteries are made up of these cells, which provide the real power to start and operate the vehicle. The battery undergoes a chemical reaction every time you turn the key. This chemical energy is converted to electrical energy by the battery, which is then sent to the starter to provide power for your vehicle.

Voltage is a unit of measurement used to describe how much power is stored in the battery while the vehicle is running. It’s safe to say that a battery is completely charged if it has a voltage of 12.6 volts or above. It is only 50% charged when a battery drops to 12.2, and it is “dead” and must be replaced when it falls to 0 volts. Your battery not only starts your vehicle but also regulates the voltage to maintain your engine in good working condition.

How Long Car Batteries Last

Car batteries may last anywhere from three to five years, based on your driving behaviour and climate factors. We suggest that you check your battery life at least once a year once it hits the three-year mark. A failing battery may be caught before it dies this way. At Searles Auto Repair, we do a battery life test on every car that comes in. Using our easy diagnostics test, we can estimate roughly how long your battery will survive.

When your car is operating, the battery is continuously being recharged, which is why you’re always advised to take a lengthy drive after you restart your vehicle or get a boost with cables so that the battery can recharge again. This puts additional strain on the alternator, which may lead to early alternator failure if done incorrectly. If your vehicle battery needs to be recharged, take it to Searle’s Auto Repair or use a trickle charger overnight. Because frequent, short journeys drain your battery more quickly, you may get fewer years out of it if your lifestyle necessitates frequent, short trips.

In the event of a low battery, what can you expect?

Your car’s charging system, alternator, and starting motor are all placed under more strain when you have a poor battery. In order to make up for the absence of battery power, certain components may be defective. Avoid replacing costly electrical parts–typically without warning–by inspecting, testing, charging, or replacing your vehicle battery as necessary.

Dying Battery Symptoms

Instead of simply going out, a dying battery typically gives you some warning signals that it is about to die as a lightbulb does.

  • Is there hesitation when you try to start your car? It’s possible that a failing battery is causing the car to struggle to start.
  • Another indication that your battery is failing is if your check engine light comes on (although this isn’t always the case!). You may also have a digital readout in your car that shows this information as a percentage, depending on the type and manufacture.
  • It’s best to peek through the battery’s opaque cover if you have any doubts. Battery weakness may be due to ageing or overcharging/overheating if the fluid level falls below the internal energy conductor.
  • As soon as the battery casing starts to appear shabby (no longer a neat rectangular box), you may be sure that something is wrong with it.
  • Are there any off-putting odours? Battery leaks have a sulfuric odour, which some have compared to rotten eggs. Also, corrosion on the battery posts will indicate a leak. See if cleaning the posts fixes the issue, and if it doesn’t, then get a new battery installed by a technician.

See also: 10 Reasons why your car won’t start and solution

Things to consider purchasing a new automobile battery

When purchasing a new car battery, there are three primary kinds that you should be familiar with in order to make the best decision for your vehicle.

  1. Lead Acid: This is the standard battery type used by the majority of automobile manufacturers. These automobile batteries come with a three-year warranty and 20,000 vehicle starts.
  2. EFB: These car batteries have a four-year life and 30,000 vehicle starts, which is significantly longer than that of lead-acid batteries. Additionally, they are more likely to start on a chilly day when the battery is stressed since they have an additional 18% starting power. Additionally, the next step up from the basic lead-acid battery is compatible with some Start-Stop cars.
  3. AGM: This battery is a popular choice for those replacing their old car batteries because it has a five-year average life and can start your car approximately 50,000 times. With 33% greater starting power than the other two types of vehicle batteries, this one is ideal for powering air conditioning and charging phones while driving. This battery is well-suited for start-stop cars.

Types of Car Batteries

1. Battery with Flood Cells

This is the most basic and most popular kind of battery. These are available as low-maintenance batteries (which may need distilled water top-ups and may be repaired if necessary) or maintenance-free batteries. charge the battery

2.  Battery with an Enhanced Flooded Capacity

Has a longer lifetime than a conventional battery and a higher charging acceptance rate. Can be utilized with cars equipped with stop/start technology.

3. Calcium Rechargeable Battery

Calcium is supplied to the interior plates, which strengthens them, increases their lifetime and available power, and decreases hydrogen production during the chemical reaction process (known as gassing).

4. Batteries in Gel

Instead of a liquid, the battery’s acid is securely suspended in gel. This completely seals the battery and increases its resilience to high temperatures and shocks.

5. Battery for Absorbent Glass Mat:

This battery utilizes the latest lead-acid technology and is capable of powering even the most demanding cars and accessories. Between the plates, a glass mat absorbs all the acid and offers very high cycle stability. This allows the battery to be charged and drained repeatedly without deteriorating its performance.

6. Lithium-ion Battery

Certain manufacturers currently include lithium-ion batteries inside their cars. They are compact (up to 80% lighter than lead-acid rivals), charge fast, have a long life, and have good deep cycle capabilities – that is, they can be nearly fully drained and then recharged without experiencing any problems. They are considerably more costly than other battery kinds and need specialized charging and maintenance.

Car Battery Maintenance

  1. If you service your automobile on a regular basis, the engine and other vehicle components won’t put too much stress on your battery.
  2. When you’re done driving, turn off your car’s lights and air conditioner. It is possible that they may deplete the power of your phone.
  3. To keep your battery from running down, drive your vehicle often. As the generator doesn’t operate long enough to completely charge the battery each time the vehicle is started, short excursions may severely deplete your battery’s capacity.
  4. After a long drive on a rough road, be sure to check your batteries for loose connections.
  5. Keep debris, dust, and grit away from your battery’s connections.
  6. When it’s very cold outside, don’t use lead-acid or lithium-ion batteries. It’s dangerous since it may cause your batteries to get frozen and cause the box’s side to swell.
  7. Preventing corrosion on battery connections is as simple as rubbing a little vaseline on them.
  8. charge the battery

See also: Top 20 highest quality new vehicles 2021


Don’t put your car’s value in danger by trying to fix it yourself. Getting it incorrectly and damaging the electrical system may result in an unpleasant shock for you and your pocketbook.

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