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Why Lead Acid Battery Die and Maintenance Tips ?

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The longevity of lead acid battery, typically exceeding five years, is often compromised in real-world scenarios where many battery fail prematurely within three to five years of operation. This discrepancy can be attributed to a combination of improper usage practices and inherent quality issues within the product itself, both of which have direct implications on the battery’s lifespan. Consequently, understanding the root causes of such occurrences and identifying the responsible factors behind the shortened lifespan of these battery becomes imperative for addressing these challenges effectively.

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One of the fundamental reasons contributing to the decline in battery capacity is water loss, a critical component essential for the electrolytic reactions within battery. When subjected to conditions like overcharging, high current discharges, increased internal resistance, or short circuits, battery generate heat, leading to the production of water vapor. While a significant portion of this vapor is typically contained within the sealed battery casing, a fraction may escape over time, resulting in gradual water loss within the battery system. This phenomenon of water loss serves as a primary catalyst for the diminished capacity observed in lead acid battery.

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Improper usage practices further exacerbate the degradation of lead acid battery, including scenarios such as inadequate charging over prolonged periods, maintaining battery in semi-discharged states, over-discharging, delayed recharging following discharge, internal short circuits, high electrolyte density, elevated temperatures, or insufficient electrolyte levels causing sulfation on the exposed lead plates. These conditions foster the formation of coarse lead sulfate crystals on the plates due to recrystallization processes. These crystals exhibit poor conductivity, occupy significant volume, and may obstruct the micro-pores of the plates, impeding electrolyte penetration and increasing internal resistance. Consequently, the conversion of these crystals back to irreversible lead sulfate during charging becomes challenging, resulting in reduced active material participation in electrochemical reactions, significant capacity reduction, and eventual failure and scrapping of the battery. Notably, the majority of scrapped battery from reputable manufacturers, adhering to national standards and subjected to proper maintenance within their designated lifespan, succumb to sulfation-related issues.

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The gradual formation of lead sulfate crystals on electrode plates during the cessation of charging and discharging processes contributes to accelerated battery aging. This phenomenon manifests in challenging charging and discharging cycles, diminished battery capacity, and exacerbates electrode plate corrosion, ultimately diminishing the battery’s operational lifespan. These manifestations underscore the importance of proactive maintenance practices in mitigating premature battery failure.

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Maintenance Tips for Lead Acid Battery (Expanded):

Based on the aforementioned insights, ensuring adequate maintenance practices and adhering to proper battery usage guidelines are crucial for preserving the longevity of lead acid battery. Proactive measures such as regular and timely watering of battery play a pivotal role in maintaining optimal operational conditions, facilitating smooth battery operation, and extending their overall lifespan. Hence, incorporating these maintenance tips into battery management routines becomes essential for maximizing the performance and durability of lead acid battery.

Related Posts :

THE CONCEPT AND APPLICATION OF LEAD-ACID BATTERIES

THE PRINCIPLE AND THERMODYNAMICS OF LEAD-ACID BATTERIES

POLARIZATION AND ELECTROMOTIVE FORCE OF LEAD-ACID BATTERY ELECTRODES

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