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10 Best Uninterruptible Power Supplies 2025 in the United States
#1
Winner
Amazon Basics UPS Battery Backup & Surge Protector 600VA/360W, 8 Outlets, Standby Uninterruptible Power Supply, for Power Outage Protection, Compact, Black
The Amazon Basics UPS Battery Backup & Surge Protector provides 600VA/360W of power, making it a solid choice for home or small office use. Its power capacity is suitable for desktop computers, home networks, and entertainment systems, though it won't support heavy-duty equipment. With 8 outlets—4 surge-protected and 4 with both surge protection and battery backup—this UPS can accommodate several devices, offering basic protection against power surges and outages.
Rating
9.7
Chosen by1,159
Power Capacity (VA/W)
Battery Runtime
Most important from
13491 reviews
#2
APC UPS, 1000VA Smart-UPS Lithium-Ion UPS with SmartConnect and NMC, SMTL1000RM2UCNC, Pure Sine Wave, Short-Depth 120V Uninterruptible Power Supply
The APC UPS, 1000VA Smart-UPS with SmartConnect and NMC offers reliable power backup with a capacity of 1000VA / 800W, making it suitable for small to medium-sized devices. It provides pure sine wave output, which is ideal for sensitive electronics. The unit includes 6 NEMA 5-15R battery backup outlets, allowing multiple devices to be connected simultaneously.
Rating
9.4
Form Factor
Most important from
23 reviews
#3
Liebert GXT4 UPS w/Network Card - 6000VA/4800W 208V/120V, Online Double Conversion Rack Mount/Tower UPS, Uninterruptible Power Supply, Sine Wave, AVR, Battery Backup(GXT4-6000RT208)
The Liebert GXT4 UPS with Network Card is a robust uninterruptible power supply unit designed to provide reliable power protection for critical equipment. It boasts a substantial power capacity of 6000VA/4800W, ensuring that it can support high-demand devices. The online double-conversion technology is a major strength, as it conditions power continuously without drawing on the battery, which helps extend the battery's lifespan. Additionally, the UPS provides a pure sine wave output, which is ideal for sensitive electronics that require stable power delivery. With a transfer time of virtually zero, it ensures that connected equipment remains uninterrupted during power outages.
Top 10 Best Uninterruptible Power Supplies 2025 in the United States
#1
Winner
Amazon Basics UPS Battery Backup & Surge Protector 600VA/360W, 8 Outlets, Standby Uninterruptible Power Supply, for Power Outage Protection, Compact, Black
Amazon Basics UPS Battery Backup & Surge Protector 600VA/360W, 8 Outlets, Standby Uninterruptible Power Supply, for Power Outage Protection, Compact, Black
Power Capacity (VA/W): 600VA/360W
Battery Runtime: enough runtime for safe shutdown
Number of Outlets: 8
Form Factor: compact design
Waveform Type: simulated sine wave
Transfer Time: not ideal for sensitive electronics
Additional Features: power management software
Chosen by 1159 this week
APC UPS, 1000VA Smart-UPS Lithium-Ion UPS with SmartConnect and NMC, SMTL1000RM2UCNC, Pure Sine Wave, Short-Depth 120V Uninterruptible Power Supply
APC UPS, 1000VA Smart-UPS Lithium-Ion UPS with SmartConnect and NMC, SMTL1000RM2UCNC, Pure Sine Wave, Short-Depth 120V Uninterruptible Power Supply
Power Capacity (VA/W): 1000VA / 800W
Number of Outlets: 6 NEMA 5-15R
Form Factor: 2U rackmount
Waveform Type: pure sine wave
Additional Features: SmartConnect, Network Management Card, LCD console
Liebert GXT4 UPS w/Network Card - 6000VA/4800W 208V/120V, Online Double Conversion Rack Mount/Tower UPS, Uninterruptible Power Supply, Sine Wave, AVR, Battery Backup(GXT4-6000RT208)
Liebert GXT4 UPS w/Network Card - 6000VA/4800W 208V/120V, Online Double Conversion Rack Mount/Tower UPS, Uninterruptible Power Supply, Sine Wave, AVR, Battery Backup(GXT4-6000RT208)
Power Capacity (VA/W): 6000VA/4800W
Battery Runtime: 5 min at full load
Waveform Type: pure sine wave
Transfer Time: virtually zero
Additional Features: network card, hot-swappable batteries, external battery option
apc by Schneider Electric SRT3000RMXLT 3kVA 208V Smart UPS SRT 12 Power Supply SRT3000RMXLT
apc by Schneider Electric SRT3000RMXLT 3kVA 208V Smart UPS SRT 12 Power Supply SRT3000RMXLT
Power Capacity (VA/W): 3000VA
Number of Outlets: multiple
Form Factor: rack-mount
Waveform Type: sine wave
Additional Features: high availability, scalability
Eaton 9SX 2000VA 1800W 120V Online Double-Conversion UPS - 6 NEMA 5-20R, 1 L5-20R Outlets, Cybersecure Network Card Option, Extended Run, Tower
Eaton 9SX 2000VA 1800W 120V Online Double-Conversion UPS - 6 NEMA 5-20R, 1 L5-20R Outlets, Cybersecure Network Card Option, Extended Run, Tower
Power Capacity (VA/W): 2000VA/1800W
Number of Outlets: 7
Form Factor: tower
Waveform Type: online double-conversion
Transfer Time: zero
Additional Features: optional NETWORK-M2 network card, LCD
Related Products
Up to 20% off
Vertiv Liebert PSI5 Lithium Ion UPS - 1920VA/1920W 120V 2U, Line Interactive, AVR, 0.9 Power Factor, Sine Wave, Uninterruptible Power Supply, Power Backup with Surge Protection (PSI5-2200RT120LI)
Vertiv Liebert PSI5 Lithium Ion UPS - 1920VA/1920W 120V 2U, Line Interactive, AVR, 0.9 Power Factor, Sine Wave, Uninterruptible Power Supply, Power Backup with Surge Protection (PSI5-2200RT120LI)
Power Capacity (VA/W): 1920VA/1920W
Battery Runtime: 8.6 min full, 19 min half
Form Factor: Rack/Tower
Waveform Type: sine wave
Additional Features: 5-year warranty, includes batteries
Liebert PSI5 Lithium-Ion UPS - 1500VA 1350W 120V, Line Interactive AVR Mini Tower Sine Wave UPS, 0.9 Power Factor Uninterruptible Power Supply(Battery Backup) with Surge Protection(PSI5-1500MT120LI)
Liebert PSI5 Lithium-Ion UPS - 1500VA 1350W 120V, Line Interactive AVR Mini Tower Sine Wave UPS, 0.9 Power Factor Uninterruptible Power Supply(Battery Backup) with Surge Protection(PSI5-1500MT120LI)
Power Capacity (VA/W): 1500VA (1350W)
Form Factor: mini-tower
Waveform Type: sine wave
Additional Features: lithium-ion battery, line-interactive AVR
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)
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)
Power Capacity (VA/W): 2000VA/1800W
Number of Outlets: 4
Form Factor: rack/tower
Waveform Type: sine wave
Additional Features: color display, gravity sensing, Energy Star
Tripp Lite Eaton Series 3000VA Smart UPS Back Up, Sine Wave, 120V, 3000W, 7 Outlets, 2U Rackmount or Tower, Network Card Option, LCD, USB, DB9, 3-Year Warranty & $250,000 Insurance (SMART3000RM2U)
Tripp Lite Eaton Series 3000VA Smart UPS Back Up, Sine Wave, 120V, 3000W, 7 Outlets, 2U Rackmount or Tower, Network Card Option, LCD, USB, DB9, 3-Year Warranty & $250,000 Insurance (SMART3000RM2U)
Power Capacity (VA/W): 3000W
Battery Runtime: 11 min half, 4 min full
Number of Outlets: 7
Form Factor: 2U rackmount or tower
Waveform Type: pure sine wave
Additional Features: AVR, LCD, remote management
#10
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Buying Guide for the Best Uninterruptible Power Supplies
Choosing the right uninterruptible power supply (UPS) is crucial to ensure that your electronic devices remain powered during outages and are protected from power surges. A UPS can be a lifesaver for both home and office environments, providing backup power and safeguarding your equipment. To make an informed decision, you need to understand the key specifications and how they align with your needs.Power Capacity (VA/W)Power capacity, measured in Volt-Amps (VA) and Watts (W), indicates the maximum load a UPS can handle. This spec is important because it determines how many devices you can connect to the UPS and how long they can run during a power outage. For small home setups, a UPS with a capacity of 600-1000 VA might be sufficient. For larger setups or small offices, you might need 1000-2000 VA. For enterprise environments, capacities above 2000 VA are often necessary. To pick the right one, calculate the total wattage of all devices you plan to connect and choose a UPS with a capacity that exceeds this total.
Battery RuntimeBattery runtime refers to how long the UPS can provide power to your devices during an outage. This is crucial for ensuring that you have enough time to save your work and safely shut down your equipment. Short runtimes (5-10 minutes) are suitable for brief outages or for giving you time to save your work. Medium runtimes (10-30 minutes) are better for longer outages or if you need more time to complete tasks. Long runtimes (30+ minutes) are ideal for critical systems that need to stay operational for extended periods. Choose a runtime based on how long you need your devices to stay powered during an outage.
Number of OutletsThe number of outlets on a UPS determines how many devices you can connect. This is important for ensuring that all your critical devices are protected and powered during an outage. For a small home setup, 4-6 outlets might be enough. For a larger home office or small business, 6-10 outlets could be necessary. For larger setups, more than 10 outlets might be required. Consider the number of devices you need to protect and choose a UPS with enough outlets to accommodate them.
Form FactorThe form factor of a UPS refers to its physical size and shape, which can affect where you can place it. This is important for ensuring that the UPS fits in your desired location. Desktop or tower UPS units are suitable for home or small office use where space is limited. Rack-mounted UPS units are designed for server rooms or data centers where they can be installed in standard equipment racks. Choose a form factor that fits your available space and installation preferences.
Waveform TypeThe waveform type of a UPS indicates the quality of the power it provides. This is important for ensuring compatibility with sensitive equipment. Simulated sine wave UPS units are generally sufficient for most home and office electronics. Pure sine wave UPS units provide higher quality power and are necessary for sensitive equipment like servers, medical devices, and high-end audio/video equipment. Choose a waveform type based on the sensitivity of the devices you need to protect.
Transfer TimeTransfer time is the duration it takes for the UPS to switch from mains power to battery power during an outage. This is important for ensuring that your devices experience minimal interruption. Short transfer times (2-4 milliseconds) are ideal for sensitive equipment that cannot tolerate power interruptions. Standard transfer times (4-8 milliseconds) are suitable for most home and office electronics. Choose a transfer time based on the sensitivity of your devices and how much interruption they can tolerate.
Additional FeaturesAdditional features such as LCD displays, USB charging ports, and network management capabilities can enhance the functionality of a UPS. These features are important for monitoring the status of the UPS, charging mobile devices, and managing the UPS remotely. Consider which additional features are important to you and choose a UPS that offers them. For example, an LCD display can provide real-time information about power status and battery life, while network management capabilities can be useful for managing multiple UPS units in a larger setup.