What is typically the maximum depth of discharge for lead-acid batteries?

The maximum depth of discharge for lead-acid batteries is typically around 50%. This means that it is generally recommended not to discharge lead-acid batteries beyond this point in order to maintain their health and longevity. Discharging a lead-acid battery too deeply can lead to sulfation, which occurs when lead sulfate crystals form on the battery plates and can significantly impair the battery's ability to hold a charge.

Limiting the depth of discharge helps ensure that the battery remains within a safe operating range, facilitating better performance and extending its operational lifespan. For applications where batteries are cycled frequently, adhering to this 50% maximum discharge guideline is crucial for preventing damage and ensuring reliable power delivery over time.