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Vertiv™ Liebert® PSI5 Lithium-Ion UPS

Designed to safeguard critical equipment in edge and distributed IT applications

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Vertiv™ Liebert® PSI5 Lithium-Ion UPSs are ideally suited to protect servers and network infrastructure in edge or distributed IT applications.

Lithium-ion is a game-changing technology when it comes to UPS batteries. When compared to traditional valve-regulated-lead-acid (VRLA) batteries, Lithium-Ion batteries have greater power density, last up to 3 times longer, recharge much more quickly, and can endure up to 10x more discharge cycles. With a 5-year standard warranty, more than double the useful life, and significantly more runtime, the Liebert PSI5 Lithium-Ion UPS is at the top of its class.

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The advantage of using Lithium-Ion Batteries as backup power source in single-phase UPS applications for remote and edge data centers

Learn the advantages of using Lithium-Ion batteries in Single-Phase UPS Applications.

Power your digital future with the Vertiv™ Liebert® PSI5 Lithium-Ion UPS

Leverage the Vertiv™ Liebert® PSI5 Lithium-Ion UPS to streamline operations, reduce maintenance burdens, and support always-on digital services

Vertiv™ Liebert® PSI5 Lithium-Ion UPS

 

Future-proof your IT infrastructure with a smarter power protection strategy. The Vertiv™ Liebert® PSI5 Lithium-Ion UPS offers a lower total cost of ownership through extended battery life, reduced maintenance, and faster deployment. Designed for modern digital operations, it enables business continuity, supports scalability, and reinforces your commitment to always-on service delivery.

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Vertiv™ Liebert® PSI5 Lithium-Ion TAA UPS

 

Empowers organizations operating in regulated environments to modernize their IT infrastructure without compromising on compliance. Designed to meet stringent federal procurement requirements, it combines long-lasting lithium-ion performance with full TAA compliance, reducing maintenance burdens, extending lifecycle value, and supporting mission-critical continuity for government, education, and public sector operations.

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The Vertiv™ Liebert® PSI5 Lithium-Ion UPS is engineered to deliver superior backup power and intelligent management for critical IT systems. Key features include:

  • Capacity range: 1500VA to 3000VA
  • Flexible form factors: Tower and Rack/Tower optimized designs
  • Power quality: Pure sinewave output on battery
  • Long-lasting battery: Lithium-Ion battery with 8 to 10-year design life
  • Cost efficiency: Up to 50% lower Total Cost of Ownership (TCO) compared to VRLA systems
  • Advanced management: Intellislot™ network management card options
  • Free software: Includes Power Assist™ and Power Insight™ for monitoring and control

Ready to power up with the right lithium-ion UPS solution?

Ensure reliable performance, longer life, and smarter energy backup tailored to your business needs.

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