What is the expected life of my UPS?
UPS systems have only two “consumables”. The batteries you rely on to provide you with power when mains fails have a service life of 3-5 years. After this time they need to be replaced to ensure your UPS gives you the run time you expect. The cooling fans used in UPS should be checked for bearing deterioration at the same time as the battery, and replaced if necessary. Lastly, the DC-bus capacitors used in your UPS may need replacing after about 8 years of operation.
