![]() ![]() ![]() Each of these product types, as well as multi-mode and DC-output/rectifiers, have their own criteria levels, which weight the efficiency of the product by the time spent at a specified proportion of the test load. The ENERGY STAR Uninterruptible Power Supply specification establishes minimum average efficiencies for UPS battery backups with different rated output power and input dependency characteristics, such as voltage and frequency dependent (VFD), voltage independent (VI), and voltage and frequency independent (VFI). ![]() Consider selecting the next higher UPS size to increase backup time.īe sure to look for the ENERGY STAR when shopping for uninterruptible power suppliesĬurrent Specification Effective Date: January 1, 2019.Make sure that the UPS performs automatic battery tests to warn whenever the batteries should be replaced.Consider an air conditioned location -battery lifetime is strongly temperature dependent and decreases by 50 percent with every 15 degrees in temperature rise.Make sure that the UPS includes surge protectors on input and communication lines.Make sure that the UPS comes with software which shuts down and backs up computers.Helpful Hints When Purchasing a UPS for Your Computer ![]()
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