Absorbent Glass Mat (AGM) batteries are widely praised for their efficiency, reliability, and maintenance-free design. However, like any other technology, they can occasionally experience issues, with leakage being a notable concern. Despite being a sealed lead-acid battery, AGM batteries can sometimes exhibit signs of leakage, often causing confusion among users. Below, we explore some of the common causes of leakage in AGM batteries.
- Overcharging: Overcharging is a leading cause of AGM battery leakage. When the charging voltage exceeds the recommended limit, excessive heat is generated inside the battery. This can lead to the buildup of internal pressure, which may damage the valves and cause electrolyte seepage.
- Physical Damage: External impacts or mishandling can compromise the integrity of the battery casing. Even minor cracks or punctures in the shell can lead to the escape of electrolyte.
- Manufacturing Defects: While rare, manufacturing defects in the sealing or valve mechanisms can allow the electrolyte to leak. This issue is often covered under warranty if identified early.
- Aging and Wear: Over time, the materials used in an AGM battery can degrade. Aging seals and valves are less effective at containing the electrolyte, increasing the likelihood of leakage.
- Improper Installation: Installing the battery at an incorrect angle or in an environment with excessive vibration can contribute to leakage by straining the seals and valves.
Preventive Measures:
- Use a charger designed for AGM batteries to avoid overcharging.
- Inspect the battery casing periodically for cracks or other physical damage.
- Ensure the battery is installed securely and in the correct orientation.
- Replace old batteries promptly to avoid problems associated with aging.
By understanding and addressing these causes, users can significantly reduce the risk of leakage and extend the lifespan of their AGM batteries.
