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10 Best Computer Ups 2025 in the United States

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#1

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Vertiv Liebert PSI5 Lithium Ion UPS with SNMP Card - 1500VA 1350W 120V Line Interactive AVR 2U Rack/Tower, 0.9 Power Factor, Sine Wave, 3 Programmable Outlets, Rotating LCD Display (PSI5-1500RT120LIN)

Rating
10.0
Chosen by1,425
Battery Runtime
Outlets and Connectivity
Surge Protection

Most important from
1 reviews

Battery Runtime
The lithium-ion battery offers significantly longer life, delivering up to 10 times more charge cycles than traditional UPS batteries.
Outlets and Connectivity
Three programmable outlets allow prioritization of critical equipment to maximize available backup power.
Surge Protection
Built-in Automatic Voltage Regulation and surge protection effectively shield connected devices from power fluctuations.
Automatic Voltage Regulation (AVR)
Built-in Automatic Voltage Regulation and surge protection effectively shield connected devices from power fluctuations.
Form Factor
While the UPS is heavier and larger than some models, its advanced features and longer battery lifespan justify the size and price.

The Vertiv Liebert PSI5 Lithium Ion UPS is a solid choice if you need reliable backup power for your computer or networking equipment. It offers 1500VA / 1350W power capacity, which is suitable for small to medium setups. The lithium-ion battery lasts much longer than traditional batteries—up to 10 times more cycles—meaning this UPS will likely serve you well for years and save money over time. It provides about 8 minutes of runtime at full load and around 18 minutes at half load, enough to safely shut down your devices during power outages.

The UPS includes three programmable outlets, allowing you to prioritize which devices get power during an outage, and has a rotating LCD display that makes it easy to check status. Its form factor is 2U rack/tower, making it flexible for different setups. The built-in Automatic Voltage Regulation (AVR) helps protect connected equipment from voltage spikes or drops, and it also features surge protection for added safety. Another strong point is the SNMP/Webcard option for remote management and free Power Insight software, useful if you want to monitor your UPS remotely.

It weighs 42 pounds and measures about 16 inches wide and deep but only 3.4 inches tall, so it’s not the lightest or smallest unit, which may be a consideration if space or portability is important. Its price can be higher than some traditional UPS models, largely because of the lithium-ion battery and advanced features. If you want a UPS that combines longer battery life, decent runtime, and good management tools—and don’t mind a bit of extra weight—this model is a dependable option.

Rating
10.0
Chosen by1,425
Battery Runtime
Outlets and Connectivity
Surge Protection

Most important from
1 reviews

Battery Runtime
The lithium-ion battery offers significantly longer life, delivering up to 10 times more charge cycles than traditional UPS batteries.
Outlets and Connectivity
Three programmable outlets allow prioritization of critical equipment to maximize available backup power.
Surge Protection
Built-in Automatic Voltage Regulation and surge protection effectively shield connected devices from power fluctuations.
Automatic Voltage Regulation (AVR)
Built-in Automatic Voltage Regulation and surge protection effectively shield connected devices from power fluctuations.
Form Factor
While the UPS is heavier and larger than some models, its advanced features and longer battery lifespan justify the size and price.
#2

Vertiv Liebert GXT5 UPS - 2000VA/1800W 120V, Online Double Conversion, 2U Rack/Tower, Energy Star Certified, Lead Acid, Sine Wave, Battery Backup, 0.9 Power Factor, Colored LCD (GXT5-2000LVRT2UXL)

The Vertiv Liebert GXT5 UPS is a robust and reliable choice for users looking for a dependable uninterruptible power supply. With a power capacity of 2000VA/1800W, it is well-suited for powering essential equipment during outages. One of its standout features is the online double conversion technology, which ensures consistent power quality by continuously converting incoming power to DC and then back to AC. This makes it ideal for environments where power reliability is critical.

The UPS is designed in a versatile 2U rack/tower format, granting flexibility in installation and saving valuable space. Its energy efficiency is boosted by the Energy Star 2.0 certification, which means it operates efficiently even in eco-mode, making it a cost-effective solution over time. Additionally, the unit includes automatic voltage regulation (AVR) to protect against voltage fluctuations, and the sine wave output provides clean power suitable for sensitive electronics. The updated firmware addresses previous fan noise issues, enhancing user experience.

However, at 58.7 pounds, the unit is relatively heavy, which could pose challenges during installation. The sealed lead-acid battery, while reliable, may require eventual replacement, which could be a downside compared to newer battery technologies like lithium-ion. The device's color graphic display with gravity sensing is a user-friendly feature, providing easy access to information and settings. The four programmable output receptacles offer versatile options for managing connected devices and optimizing battery usage.

In summary, the Vertiv Liebert GXT5 is a powerful UPS for those needing solid protection and performance for their computing devices, particularly in settings where power stability is crucial. Despite its weight and potential battery maintenance needs, its advanced features and energy efficiency make it a strong contender in the UPS market.

Buying Guide for the Best Computer Ups

When choosing an Uninterruptible Power Supply (UPS) for your computer, it's important to understand the key specifications and how they relate to your needs. A UPS is designed to provide backup power and protect your computer from power surges, outages, and other electrical disturbances. By understanding the key specs, you can ensure that you select a UPS that will keep your computer running smoothly and protect your valuable data.
Power Capacity (VA/W)Power capacity, measured in Volt-Amps (VA) and Watts (W), indicates the maximum load a UPS can handle. This is crucial because it determines how many devices you can connect and how long they can run during a power outage. For light use, such as a single desktop computer and monitor, a UPS with a capacity of 600-800 VA might suffice. For more demanding setups, including multiple devices or high-performance computers, you might need a UPS with 1000 VA or more. Assess your total power needs by adding up the wattage of all devices you plan to connect and choose a UPS that can handle at least that amount.
Battery RuntimeBattery runtime refers to how long the UPS can provide power to your devices during an outage. This is important because it gives you time to save your work and safely shut down your computer. Short runtimes (5-10 minutes) are suitable for basic needs, allowing you to save your work and turn off your devices. Longer runtimes (15-30 minutes or more) are better for situations where you need more time to complete tasks or if you have multiple devices connected. Consider how much time you need to safely shut down your equipment and choose a UPS with a corresponding battery runtime.
Outlets and ConnectivityThe number and type of outlets on a UPS determine how many devices you can connect and protect. This is important because it ensures all your critical devices are covered. Basic models may have 4-6 outlets, which is sufficient for a single computer setup. More advanced models can have 8-12 or more outlets, allowing you to connect additional peripherals like printers, external drives, and networking equipment. Additionally, some UPS units offer USB or network connectivity for advanced monitoring and management. Consider the number of devices you need to protect and choose a UPS with enough outlets and the right types of connectivity.
Form FactorThe form factor of a UPS refers to its physical size and shape, which is important for fitting it into your workspace. UPS units come in various sizes, from compact models that fit under a desk to larger tower or rack-mounted units for more extensive setups. If you have limited space, a smaller, more compact UPS might be ideal. For larger setups or server rooms, a tower or rack-mounted UPS may be more appropriate. Consider the available space in your workspace and choose a UPS that fits comfortably without obstructing your work area.
Surge ProtectionSurge protection is a feature that safeguards your devices from voltage spikes and surges, which can damage sensitive electronics. This is crucial for protecting your computer and other connected devices from unexpected power fluctuations. Most UPS units include built-in surge protection, but the level of protection can vary. Look for a UPS with a high joule rating, which indicates better protection against surges. If you live in an area prone to frequent power surges or lightning strikes, prioritize a UPS with robust surge protection to ensure your devices remain safe.
Automatic Voltage Regulation (AVR)Automatic Voltage Regulation (AVR) is a feature that stabilizes the voltage output from the UPS, ensuring your devices receive consistent power. This is important because fluctuations in voltage can cause damage or reduce the lifespan of your electronics. AVR helps to correct minor power fluctuations without switching to battery power, which can extend the life of the UPS battery. If you experience frequent voltage fluctuations in your area, choosing a UPS with AVR can provide better protection and reliability for your devices.

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