VERTIV LIEBERT PSI5 LITHIUM-ION UPS LASTS LONGER. It lasts twice as long as traditional VRLA batteries. LOW TOTAL COST OF OWNERSHIP: Lithium-Ion batteries can endure up to 10x more charge/discharge cycles so you save 50% over the lifetime of the UPS. 5-YEAR FACTORY WARRANTY: No hassle full unit coverage including battery with advanced replacement warranty. LONGER RUNTIME: This 1500VA UPS offers up to 8 minutes of runtime at full-load and 18 minutes at half-load. WITH SNMP/WEBCARD: This UPS has SNMP/Webcard for remote management and FREE Power Insight management software.