Model Description: Unison 600 UPS Replacement Battery Set (4 battery model) Compatibility: Unison 600 Condition: Brand new fresh stock Includes: Four new batteries, a complete set for the Unison 600 Warranty: 1 year full replacement warranty included Life time expectancy: 3-5 years Manufacturer: UPS Battery Center Ltd. The Unison 600 replacement battery set is made of high quality batteries designed to provide excellent performance and long life in UPS applications. Please install the Unison 600 batteries in the UPS using the original wiring harness, cables and connectors. Our batteries arrive fully charged, be careful not to short the batteries when installing. Our batteries are new and always fresh stock. The Unison 600 new battery set is covered by our industry leading 1 year replacement warranty. Our warranty is inclusive of shipping costs and is hassle free, the only warranty of this kind in the marketplace. The Unison 600 UPS replacement battery set consists of (4) high quality 12V 5Ah batteries.