25 Nov 2023

Why do AGM batteries last longer?

AGM batteries, or Absorbent Glass Mat batteries, have revolutionized the power storage industry with their superior performance and longevity. These batteries are commonly used in a wide range of applications, from automotive to marine and renewable energy systems. In this article, we will delve into the science behind AGM batteries, exploring how they work, their advantages, and the factors that affect their lifespan.

How does an AGM battery work?

AGM batteries employ a unique design that sets them apart from traditional lead-acid batteries. Inside the battery casing, there are layers of glass mat separators, which are saturated with electrolyte. This design allows for efficient absorption and retention of the electrolyte, preventing it from freely flowing like in flooded lead-acid batteries.

The AGM battery operates on the principle of the lead-acid battery, with the added advantage of the absorbent glass mat. When the battery is discharging, the lead plates undergo a chemical reaction with the electrolyte, producing electrical energy. During the charging process, the reaction is reversed, converting electrical energy back into chemical energy stored in the battery.

Advantages of AGM batteries

AGM batteries offer several advantages over traditional lead-acid batteries. Firstly, they have a higher specific power, allowing them to deliver a high current output when needed. This makes them ideal for applications that require quick bursts of power, such as starting an engine in a car or powering an electric motor in a boat.

Secondly, AGM batteries are maintenance-free. Unlike flooded lead-acid batteries that require regular monitoring of electrolyte levels and water top-ups, AGM batteries do not need any maintenance. This makes them more convenient and user-friendly.

Lastly, AGM batteries have a lower self-discharge rate compared to flooded lead-acid batteries. This means that they can hold their charge for longer periods, making them ideal for applications where the battery may not be used frequently.

AGM battery lifespan and longevity

One of the key considerations when choosing a battery is its lifespan. AGM batteries are known for their long service life, which can range from 3 to 8 years, depending on various factors. Proper maintenance and usage can significantly extend the lifespan of an AGM battery.

Factors that affect the lifespan of an AGM battery

Several factors can influence the lifespan of an AGM battery. The first factor is temperature. AGM batteries perform best in moderate temperatures, typically between 20 to 30 degrees Celsius. Extreme heat or cold can shorten the battery’s lifespan.

Another factor is the depth of discharge. AGM batteries have a limited number of charge cycles, and deep discharges can reduce their overall lifespan. It is recommended to avoid discharging the battery below 50% to maximize its longevity.

The charging system also plays a crucial role in the lifespan of an AGM battery. Overcharging can cause the battery to overheat and degrade its internal components. It is essential to use a properly regulated charging system to prevent overcharging.

AGM battery maintenance tips

While AGM batteries are maintenance-free, some general tips can help optimize their performance and extend their lifespan. Firstly, it is important to keep the battery clean and free from dirt and debris. Regularly inspecting the battery terminals and cleaning them with a wire brush can ensure good electrical connections.

Secondly, it is advisable to store AGM batteries in a cool, dry place when not in use. Extreme temperatures can negatively impact the battery’s performance and lifespan. Additionally, it is recommended to periodically check the battery’s voltage using a voltmeter to ensure it is holding a charge.

Where to buy AGM batteries in Sydney – South West Batteries

If you are in Sydney and looking to purchase AGM batteries, South West Batteries is your one-stop shop. They offer a wide range of AGM batteries suitable for various applications, including automotive, marine, and solar power systems. With their expertise and quality products, South West Batteries is a trusted supplier in the region.

You can visit their website to explore their product range and make a purchase. With their excellent customer service and competitive prices, South West Batteries is the go-to destination for AGM batteries in Sydney.

Conclusion

AGM batteries have revolutionized the power storage industry with their longevity and superior performance. Understanding the science behind these batteries and their advantages can help us make informed decisions when choosing a power source. By considering factors that affect the lifespan of AGM batteries and following proper maintenance practices, we can ensure their optimal performance and longevity. And if you’re in Sydney, South West Batteries is the best place to find high-quality AGM batteries for all your power needs. Don’t settle for less when it comes to power storage; choose AGM batteries for a reliable and long-lasting solution.