What does AGM battery mean?

[VonAlan]

AGM stands for Absorbent Glass Mat battery. Below is an introduction to AGM batteries: 1. Suitable environment: AGM batteries are ultra-fine glass fiber batteries, while EFB belongs to start-stop batteries. The engine compartment is suitable for EFB batteries, which come with refillable holes, are heat-resistant, and maintainable. AGM glass fiber plates are suitable for under-seat and trunk environments at room temperature. The structure of AGM batteries is different from ordinary batteries. When charging, it is important to note that the charging limit voltage is only 14.5V, while ordinary batteries are 15.5V. When choosing a charger, it is necessary to select an AGM-specific charger. 2. Material difference between AGM and EFB: AGM batteries refer to batteries that use ultra-fine glass wool material for the separator. EFB batteries are enhanced flooded start-stop batteries, developed based on the original ordinary lead-acid batteries; European and American cars mainly use AGM; Japanese cars mainly use EFB; In terms of price: AGM batteries are the most expensive.