Best Uninterruptible Power Supply

Updated August 2020
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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and we never accept free products from manufacturers. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
Bottom Line
Pros
Cons
Best of the Best
APC UPS Battery Backup & Surge Protector with AVR, 1500VA
APC
UPS Battery Backup & Surge Protector with AVR, 1500VA
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Compact dynamo
Bottom Line

Excellent power output for its size, protecting several electronics at once during outages, with an intuitive interface for pinpoint control.

Pros

Smaller and lighter mini-tower UPS that matches larger towers in power output. Included software helps monitor battery and can be configured to shut down a PC during a power outage. Automatic voltage regulation protects from minor power blips.

Cons

User must connect the battery on a new unit, so it’s not ready to go out of the box.

Best Bang for the Buck
APC UPS Battery Backup & Surge Protector with USB Charger, 600VA
APC
UPS Battery Backup & Surge Protector with USB Charger, 600VA
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Long battery life
Bottom Line

With its dedicated battery backup configuration, this modest-looking UPS delivers plenty of power for multiple electronics.

Pros

Provides at least 30 minutes of backup power to electronics. Includes silent mode to prevent annoying alert beeps. Includes software for more precise UPS control.

Cons

Battery performance may degrade significantly after the first 12 to 18 months.

CyberPower Intelligent LCD UPS System
CyberPower
Intelligent LCD UPS System
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Plenty of power outlets
Bottom Line

A robust UPS that conditions power well and keeps electronics powered during an outage long enough to safely shut them down.

Pros

12 outlets populate this mini-tower UPS, with 6 benefiting from battery backup – enough to protect almost all home office electronics. Includes automatic voltage regulation, helping extend the life of the battery. Software available to monitor and control the UPS. Battery life is impressive, powering longer than rated at half-load.

Cons

Ethernet ports are somewhat loose and can sink too far into the UPS body to use effectively.

Tripp Lite 1500VA UPS
Tripp Lite
1500VA UPS
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Best for brownouts
Bottom Line

This chunky tower unit is a reliable mainstay for homes in areas that are prone to power brownouts and blackouts.

Pros

A squarish mini-tower unit that offers 10 total outlets (5 on battery backup). When running a generator, the unit handles the power feed without an issue, conditioning power output to multiple electronics.

Cons

Plastic parts on casing can break easily, so be careful when moving the unit.

CyberPower Ecologic UPS System, 850VA/510W
CyberPower
Ecologic UPS System, 850VA/510W
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Good for home office
Bottom Line

A powerful and compact UPS hampered by a less-than-perfect rechargeable battery.

Pros

Great power output for a desktop UPS. A bright LCD panel is a standout feature at this price point. Includes software to monitor and control UPS, and shut down computer automatically during power failure.

Cons

Battery life is widely variable, with most lasting through the entire 3-year warranty period and others failing earlier.

Why trust BestReviews?
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and we never accept free products from manufacturers. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and we never accept free products from manufacturers. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
How we decided

We purchase every product we review with our own funds — we never accept anything from product manufacturers.

34 Models Considered
7 Hours Researched
1 Experts Interviewed
498 Consumers Consulted
Zero products received from manufacturers.

We purchase every product we review with our own funds — we never accept anything from product manufacturers.

An Uninterruptible Power Supply (UPS) provides a steady electrical current to electronics or electrical equipment in the event of a power failure thanks to an onboard rechargeable battery. It also provides a limited amount of protection against power surges that can fatally damage electronics. And with multiple outlets, a UPS can power several devices at once. As great as this sounds, the UPS isn’t infallible. Plugging in too many appliances or electronics and using a UPS that isn’t rated to handle high-power devices can damage the UPS over time so that it doesn’t work correctly when an emergency strikes and the power goes out.

Other Products We Considered
The BestReviews editorial team researches hundreds of products based on consumer reviews, brand quality, and value. We then choose a shorter list for in-depth research and testing before finalizing our top picks. These are the products we considered that ultimately didn't make our top 5.
CyberPower
PFC Sinewave UPS System, 2000VA/1540W
APC
1000VA UPS Battery Backup & Surge Protector w/AVR
APC
425VA Uninterruptible Power Supply/Surge Protector
CyberPower
AVR UPS System, 685VA/390W
CyberPower
SL700U Standby UPS System, 700VA/370W
The team that worked on this review
  • Melinda
    Melinda
    Web Producer
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APC

UPS Battery Backup & Surge Protector with USB Charger, 600VA

APC

UPS Battery Backup & Surge Protector with USB Charger, 600VA

With its dedicated battery backup configuration, this modest-looking UPS delivers plenty of power for multiple electronics.
$57
×

CyberPower

Intelligent LCD UPS System

CyberPower

Intelligent LCD UPS System

A robust UPS that conditions power well and keeps electronics powered during an outage long enough to safely shut them down.
$154
×

APC

UPS Battery Backup & Surge Protector with AVR, 1500VA

APC

UPS Battery Backup & Surge Protector with AVR, 1500VA

Excellent power output for its size, protecting several electronics at once during outages, with an intuitive interface for pinpoint control.
$164
×

Tripp Lite

1500VA UPS

Tripp Lite

1500VA UPS

This chunky tower unit is a reliable mainstay for homes in areas that are prone to power brownouts and blackouts.
$150
×

CyberPower

Ecologic UPS System, 850VA/510W

CyberPower

Ecologic UPS System, 850VA/510W

A powerful and compact UPS hampered by a less-than-perfect rechargeable battery.
$78

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