Absorbent Glass Mat (AGM) batteries utilize a fiberglass mat to contain the electrolyte, offering advantages over traditional flooded lead-acid batteries. This design makes them spill-proof and more resistant to vibrations. Low temperatures, however, can significantly impact the performance of all lead-acid batteries, including AGM. The chemical reactions within the battery slow down in colder environments, reducing their effective capacity and cranking power.
Maintaining reliable starting power in freezing conditions is essential for vehicles and other equipment. The robust construction of AGM batteries, coupled with their relatively lower self-discharge rate, makes them a popular choice for cold climates. Historically, flooded batteries required regular maintenance and were susceptible to freezing, leading to damage. The development of AGM technology addressed these issues, offering a more reliable and low-maintenance solution for cold-weather operation.