Best Computer Uninterruptible Power Supply Units of 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Computer Uninterruptible Power Supply Units, or UPS units, are essential pieces of equipment for anyone who relies on their computer to work, study or play. These units provide a constant flow of power to the computer, even during power outages or surges, ensuring that the user's work is not lost due to unexpected power failures. Additionally, UPS units protect the computer from electrical damage caused by power surges or brownouts. With a range of sizes and capacities available, there is a UPS unit to suit every need, from home users to large corporations.
At a Glance: Our Top Picks
Top 10 Computer Uninterruptible Power Supply Units
APC UPS 1500VA Battery Backup and Surge Protector
The APC UPS 1500VA Battery Backup and Surge Protector is a reliable power supply with 10 outlets, 1 GB network dataline protection, and automatic voltage regulation. It provides battery backup to 5 outlets and surge protection to the other 5. The AVR feature corrects voltage fluctuations without draining the battery, and is compatible with Active PFC. The battery can be replaced with the APC replacement battery model APCRBC124. This UPS meets the Energy Star Requirements for product specification.
APC 600VA UPS Battery Backup and Surge Protector
The APC 600VA UPS Battery Backup and Surge Protector is a reliable power supply with 600VA / 330W battery backup. It has 7 outlets, including 5 battery backup and surge protector outlets, 2 outlets with surge protection only, and a USB charger port (1.5A) for cell phones and portable electronics. The device also features a 5' power cord, right-angle 3-prong wall plug, and is wall-mountable. The replaceable battery can be easily replaced with a genuine APC replacement battery, model APCRBC154 (sold separately). The device comes with free Windows PC power-management software, and a 3-year warranty for repair or replacement via APC Support on APC UPS model BE600M1.
CyberPower CP1500PFCLCD PFC Sinewave UPS System
The CyberPower CP1500PFCLCD PFC Sinewave UPS System is a 1500VA/1000W battery backup uninterruptible power supply designed to support active PFC and conventional power supplies, providing protection for computers, workstations, network devices, and telecom equipment. It features 12 NEMA 5-15R outlets with six battery backup and surge-protected outlets, six surge-protected outlets, and 2 USB charge ports. The multifunction, color LCD panel displays detailed information on battery and power conditions, and the automatic voltage regulation (AVR) corrects minor power fluctuations without switching to battery power. The product comes with a 3-year warranty, including the battery and a $500,000 connected equipment guarantee, along with free PowerPanel Management Software.
CyberPower Intelligent LCD UPS System
The CyberPower CP1500AVRLCD3 Intelligent LCD UPS System is a 1500VA/900W battery backup uninterruptible power supply that uses simulated sine wave output to protect workstations, networking devices, and home entertainment equipment. It features 12 NEMA 5-15R outlets, including six battery backup & surge protected outlets, six surge protected outlets, and USB charge ports. The color LCD panel displays detailed information on battery and power conditions, while automatic voltage regulation (AVR) corrects minor power fluctuations without switching to battery power to extend battery life. The product comes with a 3-year warranty, including the battery, and free PowerPanel Personal Edition Management Software.
GOLDENMATE 1000VA Lithium UPS
The GOLDENMATE UPS System features an advanced Lithium Iron Phosphate battery, providing over ten years of reliable performance and reducing your long-term costs. With eight outlets, you can easily connect multiple devices while benefiting from surge protection and backup power. The intelligent cooling system keeps the device running quietly, ensuring it won't disrupt your work environment. The user-friendly LCD panel gives you real-time updates on power conditions, helping you monitor your setup for optimal performance. This combination of features makes it a dependable choice for safeguarding your essential electronics.
CyberPower ST425 Standby UPS System
The CyberPower ST425 UPS is a compact and efficient standby battery backup uninterruptible power supply system. With a power output of 425VA/260W and simulated sine wave technology, it provides reliable protection for your home office and entertainment devices, including computers, gaming consoles, and broadband routers. The UPS features eight outlets, with four battery backup and surge protected outlets, and four surge protected outlets. It also includes a LED status light for power-on and wiring fault indication, as well as transformer-spaced outlets. The CyberPower ST425 UPS is designed with high efficiency in mind, reducing power consumption and providing an ultra-efficient backup power system. It comes with a 3-year warranty, including the battery, and offers a $75,000 connected equipment guarantee.
CyberPower Ecologic Battery Backup & Surge Protector UPS System
The CyberPower Ecologic Battery Backup & Surge Protector UPS System is a compact and multifunctional 850VA/510W UPS system that uses simulated sine wave output to protect workstations, networking devices, and home entertainment equipment. It has 12 outlets, including six battery backup & surge protected outlets and six surge protected outlets. The UPS system features a multifunction LCD panel that displays immediate, detailed information on battery and power conditions. The ECO mode automatically turns off power to peripherals connected to the ECO mode outlets when the UPS detects that the computer is off or in sleep mode, reducing power usage and lowering energy costs.
Amazon Basics Standby UPS 600VA 360W Surge Protector Battery Power Backup
The Amazon Basics UPS 600VA is a standby power supply with surge protection and battery backup, perfect for safeguarding your devices. With 8 outlets, including surge-protected and battery backup options, it ensures your electronics stay safe during power surges. This UPS provides reliable power during short outages and enough time to shut down devices properly in longer outages. Its compact size makes it easy to fit in any environment. Remember to download power management software for optimal performance. Keep your device load below 80% of the unit's capacity for the best results.
APC 1500VA Sine Wave UPS Battery Backup with AVR and 10 Outlets
The APC 1500VA Sine Wave UPS Battery Backup is perfect for high-end electronics and computers. With 6 surge-protected outlets with battery backup and 4 outlets with surge protection only, you can ensure your devices are always safe. Additionally, it comes with two USB charger ports (1 USB-C, 1 Type-A) for charging your electronics. This UPS also meets Energy Star requirements and has a replaceable battery.
GOLDENMATE 1000VA Lithium UPS
The GOLDENMATE Lithium UPS is designed to provide reliable power backup with its advanced Lithium Iron Phosphate battery, lasting over 10 years and offering more than 5000 charge cycles. This means you can enjoy significant savings on battery replacements. The device features eight outlets and a quiet cooling system, ensuring your electronics stay powered without disturbing your environment. Additionally, it continuously monitors voltage to protect your equipment from power issues, and the intelligent LCD panel keeps you informed about battery and power status, enhancing your overall experience and peace of mind.
Frequently Asked Questions (FAQs)
1. What are the three types of UPS?
The three types of UPS are Offline/Standby UPS, Online/Double Conversion UPS, and Line-Interactive UPS. Each type offers different levels of protection and functionality to ensure uninterrupted power supply for computers and other devices.
2. How big of a UPS do I need for my PC?
To determine the size of UPS you need for your PC, the output watt capacity of the UPS should be 20-25% higher than the total power drawn by all the connected equipment. This ensures that the UPS can handle the power demands and provide adequate backup time during utility power interruptions.
3. How long will a UPS run a computer?
The run time of a UPS refers to the amount of time it can provide power to a computer or other devices once the main utility power is interrupted. A standard UPS typically offers a run time of around 5 to 10 minutes under full load and double that time under half load.
4. What is the difference between smart UPS and normal UPS?
Smart UPS units provide additional functions and features compared to normal UPS units. They offer simplified UPS management, better visibility into device health and performance, and a lower mean time to recover. Smart UPS units can integrate with the network to provide real-time status updates and enhance monitoring capabilities.
5. How do I calculate what size UPS I need?
To calculate the UPS size you need, add up the wattage of all the devices you plan to connect to the UPS (this is your load). Multiply the total wattage by 1.25 to determine the UPS capacity required. It is recommended that your load should not exceed 75%-80% of the UPS system's capacity to ensure efficient and reliable operation.
6. Should I keep my UPS plugged in all the time?
Yes, it is advisable to keep your UPS devices plugged in all the time. This ensures that the UPS remains connected to the grid power and can provide continuous power backup in case of a utility power failure.
7. How long can a 2000VA UPS last?
The backup time of a UPS depends on various factors, including the load in watts, battery rating, number of batteries, and battery efficiency. With a load of 500W, a 2000VA UPS can last for approximately 45 minutes.
During our computer uninterruptible power supply unit research, we found 24 computer uninterruptible power supply unit products and shortlisted 10 quality products. We collected and analyzed 420,490 customer reviews through our big data system to write the computer uninterruptible power supply units list. We found that most customers choose computer uninterruptible power supply units with an average price of $133.36.
The computer uninterruptible power supply units are available for purchase. We have researched hundreds of brands and picked the top brands of computer uninterruptible power supply units, including APC, CyberPower, GOLDENMATE. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Mike Davis is a professionally trained electrician with six years of working experience in the electronics industry. He has written an array of web and mobile-based articles for e-magazines and blogs. He loves trying out some novel and popular gadgets and his expertise is in the areas of electronics and computers which is built over many years of working and personal experiences.
Computer Uninterruptible Power Supply Units Comparison Table
#TOP1
|
#TOP2
|
#TOP3
|
#TOP4
|
#TOP5
|
#TOP6
|
#TOP7
|
#TOP8
|
#TOP9
|
#TOP10
|
|
---|---|---|---|---|---|---|---|---|---|---|
Brand | APC | APC | CyberPower | CyberPower | GOLDENMATE | CyberPower | CyberPower | Amazon Basics | APC | GOLDENMATE |
Item Weight | 24.2 pounds | 7.5 pounds | 24.9 pounds | 23.8 pounds | 12.13 pounds | 3.8 pounds | 7.7 pounds | 6.54 pounds | 27.6 pounds | 10.56 pounds |
Batteries | 2 Product Specific batteries required. (included) | 1 12V batteries required. (included) | 2 12V batteries required. | 2 12V batteries required. (included) | 1 Lithium Metal batteries required. | 1 12V batteries required. (included) | 1 12V batteries required. (included) | - | 1 Product Specific batteries required. (included) | 1 Lithium Polymer batteries required. |
Voltage | 120 Volts | 120 Volts | - | 120 Volts | 120 Volts | 120 Volts | 120 Volts | 120 Volts | 120 Volts | 110 Volts |
Color | Black | Black | - | Black | White | Black | Black | Black | Black | White |
Battery Cell Composition | Sealed Lead Acid | Sealed Lead Acid | - | Sealed Lead Acid | Lithium-Phosphate | Sealed Lead Acid | Sealed Lead Acid | - | Sealed Lead Acid | Lithium-Phosphate |
FTB Score |
|
|
|
|
|
|
|
|
|
|
Where to Buy |