Addressing Swollen Lead-Acid Batteries: Causes and Solutions

27 Mar.,2025

 

Swelling of lead-acid batteries is a common issue that can significantly impact battery performance and lifespan. This article will delve into the common causes of battery swelling and provide practical solutions to address this problem.

 

Common Causes of Battery Swelling:

  • Faulty Safety Valve: A malfunctioning safety valve can prevent the release of excess gas, leading to a buildup of pressure inside the battery and causing it to swell.
  • Incorrect Charging Parameters: Incorrect charging parameters set by the battery management system can lead to overcharging, causing the battery to swell.
  • Poor Ventilation: Inadequate ventilation can trap heat within the battery compartment, leading to high temperatures and swelling.

 

Solutions to Battery Swelling:

  • Inspect and Replace Safety Valves: Regularly inspect the safety valves to ensure they are functioning properly. If damaged or blocked, replace them immediately.
  • Adjust Charging Parameters: Review and adjust the charging parameters of the battery management system to prevent overcharging. Ensure that the system can automatically adjust the charging current based on temperature and battery state of charge.
  • Improve Ventilation: Enhance ventilation in the battery compartment to dissipate heat and prevent excessive temperature buildup.
  • Regular Battery Maintenance: Conduct routine inspections of batteries to identify any signs of swelling or other issues.
  • Choose Quality Batteries: Select batteries from reputable manufacturers that meet or exceed industry standards.

 

HuaZhiHang's Solution: HuaZhiHang offers a range of high-quality lead-acid batteries designed for marine applications. Our 2V, 4V, and 12V valve-regulated lead-acid (VRLA) and gel batteries are specifically designed to provide reliable and long-lasting power.

 

By following these guidelines and choosing high-quality batteries, you can effectively prevent and address battery swelling, ensuring the optimal performance and longevity of your battery system.

 

Addressing Swollen Lead-Acid Batteries: Causes and Solutions