LITHIUM-ION BATTERIES: Lithium-ion batteries last twice as long as traditional VRLA batteries, or longer. LOW TOTAL COST OF OWNERSHIP: Fewer or no battery replacement over the life of the Vertiv PSI5 Lithium-Ion UPS. 5-YEAR STANDARD WARRANTY: Vertiv backs this UPS system with a 5-year warranty including batteries. LONGER RUNTIME: This 1920VA UPS offers up to 8.6 minutes of runtime at full-load and 19.0 minutes at half-load. FASTER RECHARGES: Get 100% capacity by recharging in 2.1 hours to 100% in this rack UPS.