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UPS Replacement Batteries
At Critical Power Supplies, we have a full collection of UPS battery replacements for you to browse. If you have any questions about our stock or require further assistance when choosing a replacement UPS battery, contact us today to speak to one of our specialists.
We only have suppliers who meet our supply chain standards for quality (ISO 9001), health and safety (ISO 18001), and environmental management (ISO 14001). This ensures the products we offer are of a high standard, allowing us to consistently exceed customer expectations.
When should you replace your a UPS battery?
The life expectancy of a UPS battery can vary based on several factors. Despite newer alternatives such as lithium-ion, the standard UPS still uses sealed lead-acid (SLA) batteries.
SLA batteries will typically last between 3 and 5 years, compared to lithium-ion which generally have a longer life expectancy. However, when looking for replacement UPS batteries, it is important to consider that despite lasting for a short amount of time, SLA batteries are considered more cost-effective an option.
If your UPS battery is no longer providing the necessary backup power in the event of a power outage, it is important to consider the following things:
- UPS indicates a battery issue – Built-in indicators such as audible alarms or lights alert you of a problem
- The UPS battery is leaking or swollen – Care should be taken when handling a leaking battery, use gloves and apply baking soda to neutralize any spilled acid
- The UPS battery has experienced deep discharge cycles – If the battery has been drained of a large amount of its capacity, it may indicate that the lifespan has reduced, and a replacement UPS battery is needed
- The battery no longer holds a charge – A UPS battery replacement may be needed if your battery can no longer provide the necessary backup power
- The age of the battery – If your SLA battery is between 3 and 5 years it is time to consider a UPS battery replacement
How to Test if you Need a UPS Battery Replacement
Regular testing of your UPS batteries is essential in helping ensure it is working efficiently and providing the required backup power that is needed in the event of a power outage.
The following are some useful steps on how to test your UPS batteries to see if a replacement is required:
- Schedule a test – Most UPS systems have a built-in test function that allows you to run a test on your battery without disconnecting it from the UPS. Running a test at least once a year should be sufficient but more frequently is recommended if your area is susceptible to power outages.
- Monitor & check test results – While testing it is important for you to monitor that the battery is still functioning properly and producing the expected amount of power. Once the test is done ensure the results are as expected and the battery is performing as it should. Many UPS systems will provide a pass or fail results at the end of the test.
- Follow up tests – If your UPS battery is not functioning as it should, further tests should be carried out to determine what the cause of the issue is. This could be something specific to do with capacity or voltage for example.
- Find a UPS battery replacement – If the battery is still experiencing issues after further tests, it is likely time for a replacement UPS battery. If you are unsure about what the best battery replacement option is for you, our team would be happy to provide their expertise. Contact us to find out more.
UPS Battery Replacement FAQs
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Can a UPS work without a battery?
Even if a main power supply fails or experiences issues, the UPS needs a battery to provide a reliable source of power to connected devices. If there is no battery, the UPS would still provide power to connected devices but would not provide backup power.
This would mean that the UPS would function as a surge protector or line conditioner. Nevertheless, the UPS can still help protect equipment from power spikes and surges, it will not be much less reliable than a UPS with a battery backup.
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Why do UPS batteries fail?
There can be many factors that can cause a UPS battery to fail, including things such as age, overheating, lack of maintenance and thermal runaway. Each of these factors contributes to a decrease in battery capacity and performance over time, which eventually leads to a failure.
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How much does a UPS replacement battery cost?
The cost of a replacement UPS battery can vary depending on UPS model capacity and brand. At Critical Power Supplies, we stock an extensive range of UPS replacement batteries from different brands. To understand what specific needs you require it is also useful to check with our team or the manufacturers to ensure the battery you are looking at is compatible with your UPS model.
Some of our products at Critical Power are also listed without a price, so that our team of experts can ensure you are getting the UPS battery replacement tailored to your needs before you commit to an expensive purchase.
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Can you replace a UPS battery while the UPS is plugged in?
It is recommended that to replace a UPS battery safely, the UPS should be turned off and unplugged.
Some UPS models have a ‘hot swap’ feature which allows certain components to be replaced while the system is still in operation. If your UPS isn’t equipped with this feature it needs to be shut down and disconnected from the electrical circuit so avoid any damage to the equipment.
Once a new battery has been installed, the UPS can be turned back on to begin recharging the battery.
