The battery is one of the key components of an uninterruptible power supply. It supplies power to connected equipment during power outages. Over time, the battery’s capacity decreases, but proper maintenance can significantly extend its service life.
Battery life is affected by temperature, discharge frequency, load level, and power quality. Therefore, it’s important to follow a few basic guidelines when using a UPS.
What reduces battery life?
The most common causes of premature wear are:
- continuous operation of the UPS at maximum power;
- regular deep discharges;
- high room temperature;
- improper storage of the battery;
- using an incompatible battery;
- lack of battery status control;
- frequent power outages and surges.
Particular attention should be paid to temperature. Overheating accelerates battery aging and leads to a more rapid loss of capacity. Therefore, the UPS should be installed away from radiators, heating appliances, and other heat sources.
Basic recommendations
To ensure your battery maintains its original characteristics for longer, simply follow a few rules:
- Do not overload the UPS. The connected load should not constantly approach the unit’s maximum capacity. It is advisable to have some reserve capacity, especially if the UPS is used for servers, computers, or other power-hungry equipment.
- Avoid deep discharge. Regularly operating the battery until it’s completely drained will negatively impact its lifespan. If power outages are frequent, consider choosing a system with a larger battery capacity.
- Monitor the temperature. The room must be properly ventilated. Excessive heat will shorten the battery’s lifespan.
- Check your battery’s health. Modern UPSs can automatically detect battery problems and notify the user when maintenance or replacement is needed.
- Use the correct batteries. When replacing batteries, it’s important to select a battery with the correct specifications for your specific UPS model.
| Operating conditions | Recommendation | Result |
| High temperature | Provide ventilation | Less overheating |
| Heavy load | Use a UPS with a power reserve | Reducing the load on the system |
| Frequent outages | Increase battery capacity | Longer battery life |
| Deep discharges | Avoid regular full discharge | Increased resource |
| Old battery | Carry out timely replacement | Stable operation of UPS |
When is it time to change the battery?
Even with proper maintenance, a battery has a limited lifespan. Over time, the user may notice that the UPS is providing significantly less power to the equipment than before.
The need for diagnostics or replacement may be indicated by:
- a sharp reduction in battery life;
- rapid decrease in battery level;
- warnings from the UPS itself;
- inability to hold a charge properly;
- noticeable heating of the battery;
- sudden shutdown of equipment due to network interruptions.
These signs shouldn’t be ignored. If a UPS is used for a computer, server, boiler, or network equipment, a faulty battery can cause unexpected shutdowns.
How to choose the right backup power system
Extending battery life is easier if the system itself is properly selected from the start. When calculating, it’s important to consider the power of the connected equipment, the battery life, and the number of potential power outages.
Ntt Energy specialists will help you select equipment with the right specifications for various tasks. A properly selected UPS will not constantly operate at its limits, and the battery will be able to perform its primary function more efficiently.
Result
The lifespan of a UPS battery directly depends on its operating conditions. Moderate load, normal temperature, avoidance of constant deep discharges, and timely diagnostics help keep the battery in good working order longer.
When choosing a backup power system, it’s important to consider not only the cost of the UPS but also the battery’s specifications. Properly selected Ntt Energy equipment will ensure stable operation and reduce the risk of unexpected power outages during power outages.
