Whether you’re running a small home office or a gaming powerhouse, your computer is likely your most important tool for work and play. But there’s one component that sometimes gets overlooked: the uninterruptible power supply, or UPS.
UPSs are responsible for protecting the rest of your hardware when the power goes out, but they’re also worth considering if you’re worried about a power surge or brownout damaging your computer.
Read on for our best computer UPS units.
Our Editor’s Best Computer Uninterruptible Power Supply Units Reviews
- APC UPS 1500VA / 900W battery backup power supply
- 10 Outlets (NEMA 5-15R): 5 surge protector with battery backup; 5 outlets with Surge Protection Only
- 1 GB network dataline protection, 6' Power Cord, right-angle 3-prong wall plug (NEMA 5-15P). Powerchute UPS management via dedicated data port (Windows 10, 22H2 Pro, 11 Pro. For Mac OS, use native "Energy Saver" Settings)
- Automatic Voltage Regulation (AVR): instantly corrects low/high voltage fluctuations without discharging the battery, and is Active PFC compatible
- Replaceable Battery and Energy-Star Certified: Easily replace the back up battery with a genuine APC replacement battery, model APCRBC124 (sold separately). This UPS meets the Energy Star Program Requirements for product specification: Uninterruptible Power Supplies (UPS)
- 1500VA/900W Intelligent LCD Battery Backup Uninterruptible Power Supply (UPS) System uses simulated sine wave output to safeguard workstations, networking devices, and home entertainment equipment
- 12 NEMA 5-15R OUTLETS: Six battery backup & surge protected outlets; six surge protected outlets; INPUT: NEMA 5-15P plug with 6-foot power cord; USB charge ports (1 Type-A, 1 Type-C) quickly charge mobile phones and tablets
- MULTIFUNCTION, COLOR LCD PANEL: Displays immediate, detailed information on battery and power conditions; Color display alerts users to potential issues before they can affect critical equipment and cause downtime
- AUTOMATIC VOLTAGE REGULATION (AVR): Corrects minor power fluctuations without switching to battery power, thereby extending the life of the battery
- 3-YEAR WARRANTY – INCLUDING THE BATTERY; $500,000 Connected Equipment Guarantee and FREE PowerPanel Personal Edition Management Software (Download)
- Uninterruptible power supply (UPS) with 600VA / 330W battery backup power
- 7 Outlets (NEMA 5-15R): 5 Battery Backup & Surge Protector; 2 Outlets with Surge Protection Only
- 1 USB Charger Port (1.5A) for cell phones, small portable electronics
- 5' Power Cord, right-angle 3-prong wall plug (NEMA 5-15P), wall-mountable. Powerchute UPS management via dedicated data port (Windows 10, 22H2 Pro, 11 Pro. For Mac OS, use native "Energy Saver" Settings)
- Replaceable Battery: Easily replace the UPS battery with a genuine APC replacement battery, model APCRBC154 (sold separately)
- 1500VA/1000W PFC Sine Wave Battery Backup Uninterruptible Power Supply (UPS) System designed to support active PFC and conventional power supplies; Safeguards computers, workstations, network devices, and telecom equipment
- 12 NEMA 5-15R OUTLETS: Six battery backup & surge protected outlets, six surge protected outlets; INPUT: NEMA 5-15P right angle, 45 degree offset plug with five foot power cord; 2 USB charge ports (1 Type-A, 1 Type-C) quickly charges mobile phones and tablets
- MULTIFUNCTION, COLOR LCD PANEL: Displays immediate, detailed information on battery and power conditions; Color display alerts users to potential issues before they can affect critical equipment and cause downtime; Screen tilts up to 22 degrees
- AUTOMATIC VOLTAGE REGULATION (AVR): Corrects minor power fluctuations without switching to battery power, thereby extending the life of the battery
- 3-YEAR WARRANTY – INCLUDING THE BATTERY; $500,000 Connected Equipment Guarantee and FREE PowerPanel Management Software (Download)
- ★Protect your work and life:Protect desktop computers,workstations,networking devices,and home entertainment devices(e.g.Modem&Router,Smartphone,PC Desktop Computer,Network-attached Storage).
- ★AVR and Sockets:Automatic Voltage Regulation protects connected devices by stabilizing incoming voltage levels.6 Outlets provide battery backup and surge protection(Battery is charged),2 outlets provide surge protection only(Mains electricity is connected).
- ★Multi-functional intelligent LCD:Displays real-time detailed information about battery and power condition,including input voltage,output voltage,battery capacity,load capacity,etc.And can automatically extinguish the screen(Boot 30 seconds,in the state of power automatically extinguish the screen;Touch the switch and the backlight will turn on automatically).
- ★Eliminate noise:When the UPS is in battery mode,the beeping sound will be emitted after 6-10 seconds,which means that the UPS is in on-load state.As long as you touch the on key lightly to turn off the sound,the display screen will display silent state.When the battery is about to run out,the UPS will continuously emit the beeping alarm until the power off.
- ★Free management software:The software can realize unattended system shutdown and power management.
- 425VA/260W Standby Battery Backup Uninterruptible Power Supply (UPS) System uses simulated sine wave output to safeguard home office and entertainment needs, including computers, gaming consoles, and broadband routers
- 8 NEMA 5-15R OUTLETS: Four battery backup & surge protected outlets; Four surge protected outlets; INPUT: NEMA 5-15P plug with five foot power cord
- ADDITIONAL FEATURES: LED status light indicates Power-On and Wiring Fault, transformer-spaced outlets
- GREENPOWER UPS HIGH EFFICIENCY DESIGN: Reduces power consumption by utilizing a compact charger and power inverter to create an ultra-efficient backup power system for home and office use
- 3-YEAR WARRANTY – INCLUDING THE BATTERY; $75,000 Connected Equipment Guarantee
- APC 1500VA / 900W battery backup power supply
- 10 Outlets (NEMA 5-15R): 6 surge protector with battery backup; 4 outlets with Surge Protection Only. Powerchute UPS management via dedicated data port (Windows 10, 22H2 Pro, 11 Pro. For Mac OS, use native "Energy Saver" Settings)
- Sinewave UPS with Automatic Voltage Regulation (AVR), designed for high-end electronics, ideal battery backup for computer
- Two USB Charger Ports: (1) USB-C, (1) Type-A (15W shared)
- Replaceable Battery: Easily replace the battery back up with a genuine APC replacement battery, model APCRBC163 (sold separately)
- 850VA/510W Ecologic Battery Backup Uninterruptible Power Supply (UPS) System uses simulated sine wave output to safeguard workstations, networking devices, and home entertainment equipment
- 12 NEMA 5-15R OUTLETS: Six battery backup & surge protected outlets; Six surge protected outlets (Three ECO controlled); INPUT: NEMA 5-15P right angle, 45 degree offset plug with five foot power cord
- MULTIFUNCTION LCD PANEL: Displays immediate, detailed information on battery and power conditions
- ECO MODE: When the UPS detects a computer is off or in sleep mode, it will automatically turn off power to computer peripherals connected to ECO mode outlets, reducing power usage and lowering energy costs
- 3-YEAR WARRANTY – INCLUDING THE BATTERY; $100,000 Connected Equipment Guarantee and FREE PowerPanel Personal Edition Management Software (Download)
- [LiFePO4 Battery, Ultra-long Endurance]: This lithium UPS is equipped with a state-of-the-art Lithium Iron Phosphate Battery Pack, delivering a lifespan of over 10 years and more than 5000 charge cycles. Compared to traditional lead-acid battery solutions, it offers a total cost of ownership (TCO) that is more than 40% lower. The advanced battery technology not only ensures long-lasting performance but also eliminates the need for frequent battery replacements, providing a cost-effective and reliable power backup solution
- [Multi-Outlets & Efficient Cooling System]: Featuring eight NEMA 5-15P outlets with both surge protection and battery backup, this plug-and-play device comes with an AC power cord. It also includes a built-in Battery Management System (BMS) and PP45 terminals for safe and reliable connections.The advanced BMS works efficiently with cooling system.The newly updated cooling fan operates at a noise level below 50 dB. Note: The high-power cooling fan will activate when the BMS detects heavy battery usage
- [Trustworthy Protections]: The 1000VA/800W Pure Sine Wave Battery Backup Uninterruptible Power Supply (UPS) System continuously monitors battery voltage, ensuring high efficiency and reliability. It effectively addresses common electrical issues like power outages, high/low voltage, voltage drops, damping shocks, high voltage pulses, voltage fluctuations, and surges. This system is perfect for safeguarding computers, workstations, network devices, and telecom equipment.Conversion time is less than 20 ms
- [Intelligent LCD Panel]: This UPS provides real-time, detailed information on battery and power conditions, ensuring optimal performance and reliability. It features an automatic safety mechanism that halts charging and discharging if limits are exceeded, preventing potential damage. This not only protects the system from overloading and overheating but also significantly extends the UPS's lifespan, ensuring long-term, dependable operation
- [Professional UPS with Certifications]: Our UPS battery backup has successfully passed rigorous safety certifications, including UL1642, UL1973, and TUV, ensuring compliance with the highest industry standards. It incorporates the leading chip technology in the industry, providing double anomaly protection for enhanced safety and reliability. Additionally, the system offers a maintenance-free operation for up to 10 years, guaranteeing peace of mind and long-term dependability
- Standby uninterruptible power supply (UPS) with 600VA / 360W battery backup; ideal for desktop computers, home networks, IoT devices, and home entertainment devices
- 8 outlets total (NEMA 5-15R), consisting of 4 surge-protected outlets and 4 surge-protected/battery-backup outlets
- Protects electronic devices during a power surge; provides reliable power, keeping devices powered during short outages and powered for long enough to shut down properly during extended outages
- Small compact size integrates easily into any home or office environment; 5-foot cord with NEMA 5-15P right angle and 45-degree offset plug (120V - 50Hz / 60Hz)
- Note: Power management software is available for download in the "Product guides and documents" section of this page
Best Computer Uninterruptible Power Supply Units Buying Guide
Before choosing the best uninterruptible power supply you should consider following options:
1. Battery types: There are two main kinds of batteries used in UPS systems – lead acid and lithium.
Lithium batteries have a higher energy density, so they can provide longer runtimes. They are also lighter, so a lithium-based UPS is easier to move around.
However, lithium batteries are more expensive, and they don’t last as long as lead-based ones.
Also, lithium batteries need to be replaced every three to five years, whereas lead-based systems can last for up to 10 years.
2. Battery capacity: The battery capacity of a UPS is measured in volts/ampere hours (VAh). The higher the VAh rating, the longer the runtime.
3. On-battery runtime: This tells you how long the UPS can continue supplying power on its own batteries before the generator kicks in.
The longer the runtime, the more time you have to switch off your computer and switch on the backup system.
You can also reduce downtime by keeping your computer running on battery, while simultaneously switching on the backup system to supply power.
4. UPS rating: This tells you how much power the UPS can supply. Most UPSes have a rating between 750VA and 10,000VA. The higher the rating, the more computers the UPS can supply with power.
5. Line-interruption rate (LIR): This tells you how frequently the UPS can be interrupted before the battery is fully drained. The lower the LIR, the better.
6. Response time: This tells you the time taken for the UPS to switch from on-battery to on-grid and vice versa. The shorter the response time, the better.
7. Number of outlets: This tells you how many devices the UPS can supply with power at a single point in time. The higher the number, the better.
8. Warranty: This tells you the period for which the UPS manufacturer guarantees free replacement of the unit in case of defects.
What else you should know about computer uninterruptible power supply units
1. What is a UPS?
A UPS is a device that provides emergency power to a load when the input power source fails. A UPS differs from a generator in that it will provide near-instantaneous power by supplying energy stored in batteries, flywheels, or supercapacitors.
2. What are the benefits of using a UPS?
Some benefits of using a UPS include:
-providing backup power in case of a power outage
-protecting against power surges
-allowing you to keep working during a power outage
-preventing data loss in the event of a power outage
3. How does a UPS work?
A UPS is an uninterruptible power supply. It is a device that provides emergency power to a load when the input power source fails. A UPS differs from a standby generator in that it will provide near-instantaneous power to the load when the input power fails.
4. What are the different types of UPS systems?
The different types of UPS systems are standby, line-interactive, and online.
5. How do I choose the right UPS for my needs?
There is no definitive answer to this question as it depends on the specific needs of your business. However, some factors you may want to consider include the size of your business, the type of equipment you are using, your power requirements, and your budget.
Conclusion
On the market, there are numerous best computer uninterruptible power supply units. Hopefully, the list of the top ten best computer uninterruptible power supply units will save you time researching and deciding on the best one for you.