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What is an AGM Battery and Why is it So Expensive?

Tammy Warren • January 22, 2025

When it comes to automotive batteries, many car owners often find themselves overwhelmed by the options available. One

type that has gained popularity in recent years is the Absorbent Glass Mat (AGM) battery. But what exactly is an AGM

battery, and why does it come with a higher price tag than traditional lead-acid batteries? Let’s dive into the details.

Understanding AGM Batteries

AGM batteries are a type of lead-acid battery, but they utilize a different design that enhances performance and longevity.

The key feature of AGM batteries is the absorbent glass mat that separates the battery's plates and holds the electrolyte in

place. This design prevents spillage, making AGM batteries more resistant to vibration and shock. As a result, they are

often preferred for high-performance vehicles, motorcycles, and even some electric vehicles.


Advantages of AGM Batteries

1. Enhanced Performance: AGM batteries are known for their high discharge rates and ability to deliver powerful bursts

of energy. This makes them ideal for vehicles with high electrical demands, such as those equipped with advanced

audio systems, GPS, and other electronics.


2. Longer Lifespan: While traditional lead-acid batteries typically last around three to five years, AGM batteries can last

up to eight years or more when properly maintained. This longevity can make them a cost-effective choice over time.


3. Maintenance-Free: AGM batteries are sealed and do not require regular maintenance like checking water levels,

making them convenient for busy car owners.


4. Safer Design: The sealed design of AGM batteries minimizes the risk of leakage and is less prone to corrosion, which

can be a significant issue with traditional batteries.


Choose an Interstate AGM battery for long-lasting power.

Interstate AGM batteries are available at our shop. We stock a large assortment of batteries. Call today for an appointment. 563-

386-0030.

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