AGM Vs. Standard Battery: Which is Better?
As of 2022, there are 1.4 billion vehicles globally - 606 million in Africa, Asia, and the Middle East alone. Each one of them has a battery.
While early cars didn't have electrical systems and didn't need batteries, once the electric starter became common, cars needed rechargeable batteries to turn over the starter. Enter the Hudson Car Company. In 1918, Hudson began incorporating batteries into its vehicles. Since then, the flooded battery has been the dominant car battery. But times, and technology, have changed. Today, car owners have a choice in batteries: AGM vs standard battery. Let's explore the pros and cons of each.
Overview: AGM vs Standard Battery
Both AGM and standard lead-acid flooded batteries use the same basic chemistry: submerging lead plates in an electrolyte solution of water and sulfuric acid to produce free electrons. However, there are significant differences in safety, lifespan, starting power, maintenance, and shock resistance.
Standard Flooded Battery Design
Flooded batteries have a reservoir of sulfuric acid, which is caustic and can cause burns, ruin clothes, and cause blindness. These batteries need periodic topping off with distilled water and must be kept upright to prevent leaks. They also emit explosive gases when charging and self-discharge at a rate of 6-7% per month. Additionally, they are less tolerant of vibration and impact.
AGM Battery Design
AGM batteries use porous microfiber glass mats to separate the battery’s negative and positive plates. These mats are saturated with electrolytes, eliminating the need for a reservoir of battery acid. AGM batteries are maintenance-free, as they recombine oxygen and hydrogen internally, and they self-discharge at a much lower rate of about 3% per month. They are also more resistant to vibration and impact.
Why AGM Batteries are a Better Choice
AGM batteries offer several advantages over standard flooded batteries:
Zero Maintenance: AGMs are sealed and do not require topping off, allowing for more flexible installation.
Safety: AGMs do not emit dangerous fumes and are sealed to prevent acid spills.
Higher Power and Lower Resistance: AGMs have lower internal resistance, producing more power and less heat.
Durability: AGMs are more resistant to vibration and impact, making them suitable for a wider range of applications.
Faster Charging: AGMs charge almost five times faster than standard batteries.
Longer Lifespan: AGMs can last nearly twice as long as standard flooded batteries.
AGM Batteries: the Cons
AGMs are more sensitive to overcharging and require a regulated smart charger. They also cost more initially, but their longer lifespan and other benefits make them a cost-effective choice in the long run.
Bottom Line: AGMs are the Right Choice
AGM batteries offer a longer lifespan, maintenance-free operation, and greater safety compared to standard flooded batteries. They are more rugged, produce more power, and eliminate the risks associated with caustic acid and dangerous fumes. Make the right choice and contact RB Battery to find the best AGM battery for your needs. Their headquarters in Bangkok, Thailand, is ready to assist you.