What Is the Cycle Number of Lead-acid Batteries?

The cycle life of lead-acid batteries varies based on several factors, including the specific type of lead-acid battery, the depth of discharge during each cycle, and the operating conditions.

  1. Flooded Lead-Acid Batteries:
    • Flooded lead-acid batteries typically have a cycle life ranging from 300 to 700 cycles under normal operating conditions. The cycle life can be influenced by factors such as the depth of discharge, temperature, and maintenance practices.
  2. Valve-Regulated Lead-Acid (VRLA) Batteries:
    • VRLA batteries, including absorbed glass mat (AGM) and gel batteries, often have a cycle life ranging from 200 to 500 cycles. Similar to flooded batteries, the cycle life can be affected by factors like depth of discharge and environmental conditions.

It’s important to note that cycle life is typically specified based on a certain depth of discharge for each cycle. For example, a manufacturer might specify the cycle life at a 50% depth of discharge. Going beyond the recommended depth of discharge can reduce the cycle life of the battery.

To obtain accurate and specific cycle life information for a particular lead-acid battery, it’s recommended to refer to the manufacturer’s technical specifications and documentation. Different manufacturers may have variations in their battery designs and may provide specific guidelines for optimizing cycle life based on usage patterns.


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