Understanding UPS Battery Issues
Database servers, hospitals, and sensitive instruments in labs are all required to operate on a 24/7 schedule without even the tiniest downtime except the scheduled ones. Emergency life or death situations not only happens in hospitals but also in huge datacenters, telecommunication backend and laboratories handling sensitive materials. A reliable UPS grid system alone can save people from total disasters that can put down businesses. The most critical part of a UPS grid are the industrial grade batteries that give consistent, stable and steady output. If these batteries are poorly managed then it is inevitable that the grid might sooner or later cease to perform to its maximum output. To avoid downtime one needs to schedule the maintenance on a periodic basis, maintain optimal temperature and ensure an adequate ventilation system.
Most Common UPS Battery Problems Explained
Here is a quick reference of some UPS Battery Issues and solutions that you may have thought as negligible but important on the longer run.
| Problems | Symptoms | Causes | Solutions |
|---|---|---|---|
| Not Charging | Constant beep Fault light blinking Instant shutdown Failed internal test | Aged batteries Dusty terminals Faulty components Wrong settings | Replacing batteries Cleaning terminals Servicing components Reset power cycle |
| Reduced backup | Shuts down in battery mode Rapid charging/discharging Battery failure light | Higher cycle count Frequent deep discharges Sulphation | Advanced monitoring Optimize battery usage Avoid undercharging |
| Overheating | Burnt/rotten egg smell Sudden shutdowns Noisy fan / fan failure | Blocked/dusty air vents Excessive overload Unbalanced grid circuits | Periodic inspection Proper load balancing Active cooling systems |
| Replacements | Failed start/shutdown Prolonged slow charging Bulge visible in casing | Battery degradation Thermal runaway Electrolyte dry-out | Modular UPS set-up Proper ventilation Refurbishing nodes |
| Not powering on | Tripped breaker/fuse Dead battery in grid Poor connectivity | Power surges Poor maintenance Wiring fault | Hard reset Service/replacement Scheduled maintenance |
Causes Behind UPS Battery Failures
- Battery aging: Due to degradation of the chemicals used in the internal components the performance of the battery will start to decline. This is the stage where the battery has come to its last part of usage.
- Overloading: When the power demand is more than the battery’s capacity the heat generated across the battery is more than it is designed to bear. This usually destroys the components permanently leading to the replacement of the battery.
- Poor ventilation: There should be a cooling system or proper ventilation for the heat generated in the batteries to dissipate, failing which, the batteries will deteriorate well before their designated lifespan.
- Improper charging: Usually standard model issued charges are to be used for charging the batteries and ensuring that neither the battery is overcharged nor undercharged makes the performance desirable for its entire lifespan.
- Lack of maintenance: Frequent cleaning of terminals, cleaning the battery premises, air vents and flooring are all mandatory and should be scheduled on a periodic basis as prescribed by the battery supplier for optimal performance of the batteries.
UPS battery maintenance tips and best practices
Scheduled maintenance comes first when dealing with UPS grid systems as they are usually associated with infrastructures/instruments that cannot take a hit. Regular physical inspections and remote monitoring facilities must be used in tandem to ensure complete and thorough knowledge of the battery conditions in the grid. Mock tests on the charge/discharge conditions of the battery using outage simulation is a must to ensure that there are no undue surprises when the actual outage happens. Maintaining a record of all the tests done on the battery since its inception in the grid makes it easy to estimate the replacement time of the battery. Overcharging and overloading are a strict no when it comes to battery life.
How Long Does a UPS Battery Last?
The lifespan of a battery is typically 3 to 5 years but varies in accordance with several factors as listed below:
- Material Used: Overall lead acid/Gel battery is versatile and outlasts all other types of batteries.
- Climate: When the batteries are constantly exposed to higher temperatures their lifespan reduces considerably.
- Balanced Load: Overload conditions for extended periods may affect battery performance and may even lead to failure. Maintaining optimal load and distributing power requirements as per prescribed standards will give longevity of battery.
- Maintenance: Although it may have been mentioned as zero-maintenance, it is always recommended to do physical inspection of terminals, leaks, corrosion etc.,
- Storage: If UPS is not used and is kept at storage for more than the model-prescribed time then the battery may fail.
- Cycle management: Charge and discharge cycles differ with models and if the same happens frequently then it may affect the battery output. Frequent power outages may put a DOD at risk as a battery that is completely drained frequently may face reduced lifespan.
When to Replace a UPS Battery
Even though there are no issues with the battery it is always advisable to change the batteries every 2 to 5 years.This is done for two reasons. One, battery technologies are being upgraded nearly every year creating good designs that are more efficient than the older ones. Two, avoiding disasters and unwanted downtimes happens only if the batteries are replaced proactively after 5 years even though they are working. AAGE International always replenishes their stock with latest manufactured models that can be used as replacement for existing specs. Bulging of batteries are obvious signs that a battery is about to blow. Failed self-test of batteries, battery discharge is quick, flashing warning lights on a frequent basis are all signs of battery replacement requirement.
FAQs on Battery Maintenance for UPS:
- Can a battery unit be kept under direct sunlight ?
For a short period, yes. But prolonged exposure to sunlight and humidity affects battery life. - How to avoid overcharging issues?
Always practice equalization charges to avoid sulphation and provide consistent output. - Is it truly Zero maintenance for industrial batteries of premium quality?
These batteries are manufactured for no leakage or spillage issues but human-errors are always a possibility and hence routine manual supervision is required. - IPS Battery? Tubular Battery or Lithium Battery, Which one to go for ?
Totally depends on the requirement, storage space available, budget and climate. - Is regular maintenance required?
Absolutely yes. Regular inspection and remote monitoring is required for complete safety.
Always get professional help:
Batteries need trained and skilled handling for correct settings and placement. It is always recommended to go for a professional like AAGE International for the AMC requirement of your grid system. Even though a company’s staff may be trained enough to handle the batteries, it is professionals who can easily identify a problem in performance. Key observations like spilled batteries, slight bulges will go unnoticed if not handled by a professional battery service team.
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