Liebert, part of Emerson Network Power, offers a variety of Uninterruptible Power Supply UPS Battery Backup systems providing power protection for Computer and Peripherals, Home UPS, Network and Server UPS, as well as Data Center Three-Phase UPS Backup System uses, industrial, commercial, business and personal. This includes PowerSure, Nfinity, UpStation, ProActive and InterActive series in Tower and Rackmount versions for computer equipment, home and business appliances and lighting applications as well as for network and on-line power protection. Both Single-phase UPS modules and three-phase UPS Battery Backup systems. Wholesale Batteries Direct has the high quality batteries that you want to buy at discount prices to power your Liebert UPS Battery Backup equipment. All of our batteries come with a full 1 year warranty.