What is AGM battery?

AGM stands for Absorbent Glass Fiber Mat, which is a maintenance free sealed lead-acid battery. In AGM batteries, the electrolyte is absorbed into the glass fiber pad sandwiched between the battery lead plates. This design helps to fix the electrolyte and prevent it from overflowing, even if the battery casing is damaged.

AGM batteries are renowned for their high power density, fast charging speed, and shock resistance, making them a popular choice for applications such as automobiles, ships, and renewable energy systems. They are typically used for vehicles, motorcycles, boats, RVs, and backup power systems with start stop systems.
The development of AGM batteries

The development of AGM batteries was the result of joint efforts by multiple companies and researchers in the mid-20th century.

AGM technology continues to develop, and in the 1970s and 1980s, AGM batteries began to be applied in commercial and industrial fields, especially in telecommunications, UPS (uninterruptible power supply) systems, and emergency lighting, due to their reliability and maintenance free nature.

In the 1990s, AGM batteries were widely used in the automotive industry. Due to their high starting power, fast charging, and shock resistance, they are used in vehicles with advanced electrical systems and start stop technologies.