UPS Battery Maintenance

Our UPS battery maintenance services are available on a nationwide basis and include the licensed disposal of all battery waste. Please get in touch for a personalised quote

UPS Battery Maintenance Services to keep your UPS in the best condition

A damaged or corroded battery system is one of the main causes of Uninterruptible Power Supply (UPS) failure. It is vital therefore, that batteries remain in peak condition at all times, to ensure the UPS can respond when it is called into action.

Power Control offer a range of UPS battery maintenance services to protect the operational performance of your UPS system. These help to preserve the safety and lifespan of both individual batteries and battery sets, preventing unnecessary downtime and guarding against costly repairs.



We are committed to providing value by offering top battery products and services at competitive prices, ensuring exceptionally high customer service delivery.



Our service team can offer a comprehensive checkup of your uninterruptible power supplies and batteries with a replacement service for all leading UPS brands

Our comprehensive battery maintenance services for UPS include the following elements:

Battery replacement, testing, installation & disposal

Whether your UPS batteries are valve-regulated lead-acid batteries (VRLA), lithium-ion or vented lead-acid (VLA), they require routine monitoring to check for signs of corrosion, cracking, leakage or swelling. Where issues are identified batteries should be replaced and disposed of appropriately.  

All battery connections should also be examined, and a visual inspection undertaken of any racks, cabinets or terminals for signs of wear and tear.


Load bank testing

Load bank testing is an integral part of UPS battery maintenance servicing and provides information on the battery’s autonomy at the time of the test, as well as the integrity of all electrical interconnections. The test is carried out when the UPS is under load conditions, to ensure the batteries are working optimally or to show whether any of the batteries are approaching the end of their working life or about to fail. The test is carried out with a device, the load bank, which develops an electrical load, applies the load to the UPS system or generator and converts or dissipates the resultant power output of the source.

When testing a system, the load bank should be placed no more than 20 meters from the PDU or UPS terminals. However, it is important to remember allowances for heat dissipation need to be addressed to allow the load bank fans to cool the system. A resistive load stimulates real-life resistive loads, such as incandescent lighting and heating loads as well as the resistive or unity power factor component of magnetic loads.

Upon completion of a load bank test, system performance is determined using measurements taken during discharge. The test is useful for identifying problems with generators or UPS systems and prompts the immediate actions that need to be taken to facilitate efficiency.


Impedance testing

A third element of the UPS Battery Maintenance Service is impedance testing. This is a way of monitoring the internal resistance of a UPS battery to indicate which cells are the weakest, or have abnormalities that may lead to future battery failure. An electrical current is passed through each battery sequentially to decipher the internal impedance.

As a battery ages its impedance increases. Where a lower internal resistance generally indicates a higher capacity, any increases can indicate the battery is declining in capacity or degrading, prompting the need for replacement.


Preserve the life of UPS batteries

The finite lifespan of a battery is determined by its speed of change in characteristics, both mechanically and chemically. Unlike measuring the charge a battery holds, this method of testing can actually determine battery health. This is achieved by taking into account a number of intrinsic and extrinsic factors, such as the type of cell, the cell’s beginning of life characteristics, the mode of battery failure, electrical interference, the application in which it is being used and the ambient temperature.

At Power Control we determine not only the voltage and impedance, but with our advanced battery test, we simultaneously measure the electrical and chemical properties of the batteries by measuring sulfation, dryout, voltage and impedance (SDVI).



“ A big thank you to your team on a very professional piece of work. From start to the end, well organised, and a bunch of Hard-working Lads. I Wish all of our contractors had your work ethics. ”
Account Manager at CBRE
“ This latest project with Power Control has really reinforced the importance of having regular battery maintenance with us (Briar Chemicals). The speedy response from Power Control has meant that we were able to be up and running again in a matter of days. ”
Nick Burr, IT Manager Briar Chemicals
“ The contract put together for us perfectly suits our needs and has not only given us peace of mind that all our systems are running safely and correctly but has also reduced the lifetime costs of the equipment. ”
Humayun Mirza, IT Manager at the University of Bedfordshire

Regular UPS battery maintenance is vital when it comes to safeguarding the performance of your UPS. Our service agreements offer the opportunity to identify potential issues ahead of time, allowing you to take the preventative action needed to keep you up and running in emergency situations. 

UPS battery disposal service

All exhausted UPS batteries are hazardous. If you require the removal and disposal of old or recently replaced batteries, Power Control will arrange collection and ensure safe and environmentally friendly disposal of any sealed lead-acid batteries. All works are carried out to environment agency standards.