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Car Battery Buying Guide – Things to Consider When Buying a Vehicle Battery


Our daily lives run more smoothly when our car batteries are in good shape, but just like anything else, a car battery can't last forever and ultimately needs to be replaced. It's not usually the best idea to wait until the car breaks down due to a dead battery, but that's precisely what most of us would do. A dead automobile battery spells danger on a frigid winter day.

Your car's battery is its beating heart. It transmits the power in a chemical form, which is then converted into electrical energy and used to control the vehicle's electrical components. If power items are turned on after the engine is turned off, car batteries might become old or fail.

Car Battery Guide Australia

Choosing the correct car battery can be challenging at times. The following pointers will assist you in making an informed decision and make your battery purchase less stressful.

Examine the Battery's Manufacturing Date

Always go with a new car battery. How? Check for the date stamp on the battery set's top cover. The date is displayed as a two-character code, with the letter representing a month and the number representing the year of manufacture. 

For instance, if the battery reads B5, the letter B denotes the month of February, and the number 5 indicates the year 2025. Call your installation service provider for assistance if you're having trouble locating the production date. Installing a battery set over six months old is strictly prohibited.

Determine the Size of Your Battery Group

Car batteries are classified based on their length, breadth, and height. The number can be found on the battery label if you own a car with its original battery. Group size is usually a two-digit number followed by a letter. 

Otherwise, contact your owner's manual (search under the specs section) or a professional to determine the appropriate size for your car. When driving on roads with vibrations, a battery of the correct size should fit precisely in the battery tray and feel secure, so it does not move and is not harmed.

Capacity Reserve

This is the amount of time the battery can run without the help of the engine before being discharged. A high Reserve Capacity helps the car get through difficult situations like a non-compliant engine, alternator failure, and leaving lights on by accident.

Power Consumption

The terms Cold Cranking Amps (CCA) and Cranking Amps (CA) are interchangeable (CA). Cranking Amps refers to the energy necessary to start a vehicle at 32 degrees Fahrenheit, whereas Cold Cranking Amp refers to the battery's capacity to create a car at 0 degrees Fahrenheit. CCA is important in cold locations; therefore, more excellent CCA batteries are preferred.


A valid guarantee always covers branded batteries. Even if it's available at a discount, don't buy a locally-made battery. Unauthentic storms don't come with a warranty, don't work with features, and don't last very long. Choose a brand that gives the longest free replacement time by searching the internet or speaking with your battery provider.

We recommend getting a battery with at least a 24-month warranty. Most reputable battery manufacturers will provide a 24-36 month warranty. When Best Batteries' batteries are fitted to the vehicle's specifications, they come with a guarantee that is exactly this long. 

The Old Battery should be Recycled

Car batteries are easily recyclable and can be reused to create new goods. When purchasing a new battery, you will certainly be charged an additional fee, which will be returned if you bring in your old battery.


There are two types of maintenance situations here: low maintenance and maintenance-free. The liquid electrolyte in a maintenance-free automobile battery is normally sealed, and it can run for the whole battery life without needing to be replaced.

Low-maintenance batteries have caps that can be unsealed to allow distilled water to be added regularly.

High capacity

The bigger the capacity, the longer the power will be accessible and the more beneficial it will be when your car's alternator fails, or you've left the lights on for an extended period. Higher capacity batteries will not be affected by a drop in charge because they will power for longer. 

As a result, select a battery with a bigger reserve capacity. They may be a little pricey, but you will always reap the benefits.

Storage Capacity

Every vehicle has a specific power need for which the battery is selected. This determines the battery's storage capacity, measured in Ampere-hours or Ah. The higher the Ah, the longer the battery can keep up with the load.

Previous battery experience

Consider your previous experience with the battery type before purchasing one. A battery that has been reliable for a long time is better, and you can always compare your experience with that of your friends.

Follow the owner's handbook for the specifications required when purchasing a battery for automotive or other purposes, or see an expert. 

If you drive the same car for more than three years, you're likely to need to replace your old car battery, as batteries last on average for three to four years before dying. It might also include flaws like a cracked case, loose battery connectors, or missing filler caps. Regardless of whether the scenarios mentioned above apply to you, it's critical to have the correct battery for your vehicle.


Car Battery Maintenance Tips & The Best Batteries Of Australia

The primary function of your car battery is to start your vehicle. It's also in charge of supplying power to your vehicle's lighting, audio system, and any other electrically powered components.

car battery maintenance

What Types Of Car Battery Maintenance Are Necessary?

That depends on the type of battery. The better modern batteries, particularly AGM batteries like the Optima, are sealed and require very little maintenance. If they aren't used regularly, all you need to do is connect them to a suitable voltage maintainer. If you have a more classic flooded cell battery, simply check the water level from time to time to prevent it from drying out and exposing the plates.


The process of car battery maintenance is critical to ensuring that your vehicle functions properly. So, here are some car battery maintenance tips.


Every two years, test your battery

The acid in your battery might slowly evaporate in hot temperatures, reducing the amount of acid in the battery. This prevents it from receiving a full charge and running at maximum capacity. It can also corrode the plates and cables of your battery.


There are several methods for testing your car battery. You may either have it tested by a mechanic or acquire a few tools to do it yourself.


Every four years, change the battery

Each car battery should be replaced every four years, and you must remember to do so to guarantee that your vehicle operates correctly.


Nothing is more frustrating than losing power in the middle of short trips, so don't try to stretch the life of your battery any further than necessary.

Examine the lead-acid level


Your battery's acid level should be checked every six months. Keep an eye out for acid stratification, which occurs when batteries are charged below 80%, don't obtain a full charge, or have shallow discharges.


Electrolytes will concentrate at the bottom of a layered battery, leaving the top hungry. Your battery is especially vulnerable if you travel short distances while using power-sucking devices.


Carefully add water

If the electrolyte levels go low (the plates become exposed), fill them with distilled water.


Use caution and only refill the cells to cover the plates when doing this. When adding water, using a funnel or a sports bottle allows you to manage the flow.


Use a battery charger to recharge the battery after pumping up the water levels.

When the engine is turned off, turn off the headlights and interior lights


When the car isn't driving, these lights draw power directly from the battery, like appliances. Please turn off all the lights in the automobile after you've turned it off. Start them just after you've started the engine. 

Before leaving the car, double-check that your headlights are turned off.

Battery maintenance by cleaning


Cleaning the battery prevents dirt and debris from entering the cells. Cleaning the top of the battery and around the terminals is vital because this might promote corrosion on nearby metal. 


To remove any "crust," use ammonia-based window cleaners or a mixture of baking soda and water and a wire brush. Remember that the brush should be moist rather than wet. After you've finished cleaning, wipe the battery down to remove any baking soda residue, which might cause corrosion.


When cleaning, make sure no liquid enters through the battery ports.


Do not leave your car unattended for too long


Leaving your car unattended for an extended period might deplete your battery. As a result, driving your vehicle at least once every three days is recommended.


Battery maintenance will help it live much longer, which is essential for maintaining your car in good working order. If your battery has been replaced several times and the condition of your car is deteriorating, it may be time to say goodbye.


Test the battery's capacity


A battery load test should be performed once a month in most cases. This is to check that the gadget is adequately charged. A mechanic can perform this test for you.


Replace your battery with one that is less than a month old


When it's time to replace the battery, make sure you obtain a fresh one. The manufacture date can be seen on the side of the battery. For the best battery performance, look for one that was made within the last month. 


Battery replacement is necessary because they degrade over time. A battery that is more than a month old would most likely last less time than one that is fresh new.

Avoid purchasing a used or low-cost battery. These are almost probably going to be short-lived.


Garage parking


Maintaining a consistent charge requires keeping your car battery out of the elements. Extreme cold can make it challenging to start a car; this could signify a failing battery. Battery fluid evaporates when exposed to excessive heat. Overcharging occurs, as a result, dramatically reducing battery life.


If possible, keep your car in an enclosed garage during periods of excessive temperature to create a consistent climate beneficial to battery health.


Keep it safe


Unfortunately, car batteries cannot be thrown away like Duracell or Energizer batteries. They contain several components, including fluid and acid, which can leak if the battery is dropped. Your engine may suffer irreversible damage as a result of this.


Check your battery now and then to verify that it is correctly positioned and not sensitive to being moved around. Keep the battery tray clean and secure it using industrial-strength rubber bungee cords if necessary. 


Utilise the Sun


If you don't often drive or know your car will be sitting idle for an extended period, a solar charger can be a good investment. Similar chargers can be used with any wall outlet, but a solar charger is self-contained, renewable, and portable.


The solar panel goes on your dash and charges your vehicle battery as needed once it is fitted. To prevent overcharging, most external chargers on the market will immediately close off and restart based on voltage.


Using an Insulation Blanket, tuck it in


Protecting your car battery with insulation is little-known maintenance advice. The amount of space under the hood of modern vehicles has shrunk in recent years. This is the outcome of improved aerodynamics and fuel efficiency due to design. The issue is that these design elements might limit engine airflow.


Insulating your car battery will keep it safe from cold and hot temperatures. Purchasing a larger battery to sustain a charge for longer is common sense. On the other hand, a larger battery will restrict airflow and increase the rate of failure. The best option is to get a smaller battery with enough space on the tray for insulation material.


Maintain a 12.6-volt battery charge


This is the ideal voltage for charging a battery. The battery's performance and longevity will suffer if it goes below this level. Connect the positive lead (red) to the battery's positive terminal and the negative lead (black) to the negative terminal with a voltmeter. Hold them in place for a few seconds while waiting for the meter to read them.


Deep cycle batteries aren't designed to handle the excess heat and rapid charging of a regular/traditional battery charger.


Connect a battery charger by connecting the negative lead to the negative terminal first, then the positive lead to the positive terminal if the charge is less than 12.6 volts. Replace the battery and charge it to 12.6 volts.

When testing and charging the battery, always wear rubber gloves.


To protect the battery from the cold, wrap it in a battery heater


A battery heater can keep your battery from dying in the cold if you live in a cold climate or if winter is approaching. These are essentially warm jackets that fit over the battery. Purchase a battery warmer from your local auto parts store and follow the manufacturer's installation instructions. 


Battery warmers are divided into two categories. The first is a battery that is wrapped in insulated fabric. These are less expensive, but they are less effective. When you plug it in, a rubber coating inflates. The battery will be better protected as a result.


Brands of Car Batteries in Australia


Batteries are the beating heart of cars; without them, your vehicle would not function. If you try to start your automobile but it won't, give it a kickstart, and it will start. The problem could be with the car battery, which needed to be replaced.


Replace a battery with a long-lasting one to avoid this scenario in the future.


Most buyers desire both affordability and quality when making a purchase. Check out Australia's top three car batteries. 


Marshall Battery
marshall battery

Do you remember the advertisement "Hollar for a Marshall" if you reside in Australia?


Marshall has created batteries for nearly 75 years and is Australia's "most widely recognized retail battery brand."


Marshall batteries are known for not just providing batteries but also roadside help. Batteries, fleet battery servicing, and jumpstarts are all examples of roadside services.


Marshall batteries will also come to your location to retrieve dead or near-end batteries. Their primary goal is to help the environment by recycling that old dead battery. Their recycling facility generates around 96,000 metric tons of refined lead and leads alloys per year.


Their product line includes SUVs, 4WDs, caravans, solar, marine, jet skis, motorcycles, mowers, heavy trucks, tractors, and industrial equipment.


Supercharge Battery

supercharge battery

Another car battery is well-known for its long lifespan—Ramsar (one of Asia's finest battery providers )'s firm, formed in 1984 in Australia.


They've been offering custom-made designs to their consumers to take the lead in the local market. Because of their long history of good performance, consumers trust this brand with their vehicles, 4WD, trucks, marine, lawn care, deep cycle, and motorcycles with Supercharge batteries.


Since 2007, Supercharge batteries have been collected and recycling Used Lead Acid Batteries to help the environment.


Century Yuasa Car Battery

century car battery

Century batteries are one of Australia's most dependable and long-lasting battery brands. Founded in 1962, the company has established itself as one of Australia's market leaders.


In addition, they recycle around 3000 tonnes of lead-acid batteries each year to help the environment.


Australia is where Century batteries are made. The reverse capacity, cold cranking ampere (cck), and hot cranking ampere (hck) are all set for Australian conditions.


Batteries for cars, marines, buses, trucks, heavy machinery and other applications are available from Century.


Maintaining your car battery is a straightforward approach to running your vehicle smoothly and avoiding breakdowns. Furthermore, good maintenance will keep your car batteries out of the landfill for a more extended period. It's challenging and time-consuming to eliminate the corrosive and hazardous substances in car batteries. Maintaining the health of your car battery is another method you may contribute to environmental preservation.