UPS systems require regular maintenance, and batteries will typically need replacing after a few years, depending on the UPS and battery type. In this blog post, we’ll explore the lifespan of a UPS, signs your battery needs replacing, and tips to extend its longevity:
An Uninterruptible Power Supply (UPS) is a critical component for protecting electronic devices from power outages, surges, and voltage fluctuations. However, one of the most common misconceptions is that once installed, a UPS will continue providing backup power forever without any maintenance.
The truth is, while a UPS itself can last up to 15 years or more, its battery—the heart of its backup power—typically needs replacing sooner in many cases. Ignoring battery maintenance can lead to unexpected failures, putting your equipment at risk.
How Long Does a UPS Last?
A well-maintained UPS unit can remain functional for 15+ years, depending on its quality, usage, and environmental conditions. However, its battery is a consumable component that degrades over time due to factors like:
Charge cycles – Frequent discharges reduce battery life.
Temperature – Batteries last longer when kept in a cool, dry environment (ideally around 20-25°C).
Overloading – Running a UPS near its maximum capacity shortens battery lifespan.
Lack of maintenance – Dust buildup, poor ventilation, and infrequent testing can accelerate battery degradation.
When Should You Replace Your UPS Batteries?
Even if your UPS appears to be functioning, its batteries may no longer hold an adequate charge. Here are key signs that indicate it’s time for a UPS battery replacement:
Frequent Warnings – Most UPS units emit warning signs when their battery health is declining.
Reduced Backup Time – If your UPS runs out of power quickly during an outage, the battery is likely deteriorating.
Battery Indicator Light – Many modern UPS systems have a battery health indicator that alerts you when replacement is needed.
Physical Swelling or Leakage – In very rare cases and when a UPS is not maintained properly, bloated or leaking batteries are a clear sign of wear and must be replaced immediately.
Age – If the battery is over 5 years old, it's wise to perform battery impedance testing and potentially consider a load bank test to identify and replace weak or degraded batteries before they totally fail.
How to Extend the Life of Your UPS & Battery
While batteries will naturally degrade over time, following these best practices can help maximise their lifespan:
✅ 1. Keep Your UPS in a Cool, Well-Ventilated Area
Heat is one of the biggest culprits in battery degradation. Ensure your UPS is placed in a cool, dry location away from direct sunlight or heat sources.
✅ 2. Avoid Overloading Your UPS
Using a UPS at its maximum capacity puts excessive strain on the battery. Our routine maintenance would include checking the load percentage and reducing it if necessary to prevent premature wear.
✅ 3. Perform Regular Maintenance & Testing
During maintenance checks, we run periodic self-tests and inspect the battery for swelling or leaks. Cleaning dust from the UPS vents also prevents overheating.
✅ 4. Replace Batteries on Schedule
Even if your UPS seems fine, replacing the battery according to their shelf life prevents unexpected failures and ensures reliable backup power.
✅ 5. Use a Compatible Replacement Battery
We recommend always using manufacturer-approved batteries to ensure compatibility and optimal performance. Cheap, off-brand batteries may degrade faster or even damage your UPS. At Levant UPS, we work with the leading UPS battery manufacturer's including Yuassa and Fiamm.
Final Thoughts
A UPS is an essential safeguard for protecting critical equipment, but it’s not a set-and-forget device. While the UPS itself can last 15+ years, its battery needs replacing sooner to maintain peak performance. Regular maintenance, testing, and timely battery replacements will keep your UPS functioning effectively, ensuring your business or home stays protected against power disruptions.
Need a UPS Battery Replacement?
If your UPS is showing signs of battery failure, don’t wait until it’s too late. Explore our UPS battery replacement options today and ensure uninterrupted power when you need it most. Email the team at info@levantups.co.uk today for a personalised quotation.
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