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Without getting too technical, it is an accepted norm that a battery has reached “end of life” when it can no longer supply 80% of its rated capacity in Ampere hours. At this point the battery should be replaced as the aging process accelerates.
Determining Factors of a Batteries Life Span:
- Ambient and operational temperature throughout its rated life expectancy;
- Battery chemistry;
- Positive plate design and thickness;
- Ripple voltage and current;
- State of DC caps;
- Preventative maintenance
The expected life of a battery can vary significantly due to environmental conditions, number and depth of discharge cycles and correct maintenance. Adequate maintenance will ensure that health and safety incidents are minimised along with fire and / or property damage.
As to the question why batteries fail, there are a multitude of reasons, however, common causes are:
- High or fluctuating temperatures;
- Inaccurate float charge voltage;
- Interconnecting links or connections that are loose;
- Damaged casings resulting in loss of electrolyte;
- The general aging process or lack of regular maintenance.
Regular preventive maintenance on your battery bank will ensure an increased lifespan, greater reliability and reduce potential failures on critical equipment.
Standby Systems SA has staff specifically trained to test and assess the batteries in accordance with manufacturer’s recommendations. Our policy of “prevention is better than cure” ensures efficient uptime for our clients and minimise potential risks.
Please do not hesitate to contact our offices should any additional clarification be required.