8 Best Ups for Servers in 2026

Contents
  1. The Top 8
  2. Top 8 Ups Reviewed in Detail
  3. 1. Best Overall
  4. 2. Best for Servers
  5. 3. Best Value
  6. 4. Best Heavy-Duty
  7. 5. Best for Small Spaces
  8. 6. Best for Daily Use
  9. 7. Most Versatile
  10. 8. Best Compact
  11. Ups Compared Side by Side
  12. How We Reviewed
  13. What to look for
  14. How to Choose Ups
  15. Frequently asked questions

You need the best ups battery backup for servers. The best overall choice is the CyberPower CP1500PFCLCD PFC Sinewave UPS. It has 1500VA capacity and 12 outlets, making it perfect for multiple devices. The best value pick is the CyberPower ST425, which offers 425VA but sacrifices power capacity for a lower price. Most buyers face the choice between a higher power capacity or a budget-friendly option. This article will help you make that decision.

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The Top 8

1
CyberPower ST425 Standby UPS Battery Backup and Surge Protector
CyberPower ST425 Standby UPS Battery Backup and Surge Protector
Amazon.com
2
CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector
CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector
Amazon.com
3
APC BE600M1 UPS Battery Backup & Surge Protector for Computer, Router, NAS
APC BE600M1 UPS Battery Backup & Surge Protector for Computer, Router, NAS
Amazon.com
4
CyberPower CP1500AVRLCD3 Intelligent LCD UPS Battery Backup
CyberPower CP1500AVRLCD3 Intelligent LCD UPS Battery Backup
Amazon.com
5
CyberPower EC850LCD Ecologic UPS Battery Backup and Surge Protector
CyberPower EC850LCD Ecologic UPS Battery Backup and Surge Protector
Amazon.com
6
APC BE425M UPS Battery Backup and Surge Protector for Small Electronics
APC BE425M UPS Battery Backup and Surge Protector for Small Electronics
Amazon.com
7
APC BX1500M UPS Battery Backup & Surge Protector for Computers, Electronics
APC BX1500M UPS Battery Backup & Surge Protector for Computers, Electronics
Amazon.com
8
CyberPower ST625U Standby UPS Battery Backup and Surge Protector
CyberPower ST625U Standby UPS Battery Backup and Surge Protector
Amazon.com

Top 8 Ups Reviewed in Detail

Here, we review the best ups battery backup for servers. Each pick offers different features suited for various needs.

1. Best Overall

CyberPower ST425 Standby UPS Battery Backup and Surge Protector

$59.95 $64.95
in stock
Amazon.com
  • 425VA/260W Standby Uninterruptible Power Supply (UPS): Uses simulated sine wave output to provide battery backup power and to safeguard home office, home entertainment 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 right angle, 45 degree offset 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; 75K USD Connected Equipment Guarantee; UL SAFETY CERTIFIED: Product has been tested in a UL certified lab and listed with UL as meeting or exceeding safety standards
Updated: September 26, 2026 6:05 pm

The CyberPower CP1500PFCLCD PFC Sinewave UPS is the best overall choice. With a capacity of 1500VA and 1000W, it offers reliable power for servers and network devices. It has 12 outlets, allowing for multiple connections without additional adapters. Compared to other models, this UPS provides the best balance of power and versatility. The CyberPower ST425 has lower capacity, making it less suitable for larger setups. However, it is more budget-friendly. Users should consider their specific power needs when choosing.

Pros

  • 1500VA capacity for high-demand devices
  • 12 outlets for multiple connections
  • PFC sine wave output for better performance
  • LCD display for easy monitoring

Cons

  • Larger than some other models
  • More expensive than basic options

Best for: Users needing reliable power for multiple devices. Not ideal for: Those with minimal power requirements.

This unit is a strong choice for anyone needing dependable power backup.

2. Best for Servers

CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector

$239.95 $274.95
in stock
Amazon.com
  • 1500VA/1000W PFC Sinewave Uninterruptible Power Supply (UPS): Uses sine wave output to provide battery backup power for Active PFC & conventional power supplies; Safeguards computers, workstations, network devices, and telecom equipment
  • 12 NEMA 5-15R OUTLETS: 6 battery backup & surge protected outlets, 6 surge protected outlets; INPUT: NEMA 5-15P right angle, 45 degree offset plug with 5 foot power cord; 2 USB charge ports (1 Type-A, 1 Type-C) quickly charge 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; UL SAFETY CERTIFIED: Product has been tested in a UL certified lab and listed with UL as meeting or exceeding safety standards
  • 3-YEAR WARRANTY – INCLUDING THE BATTERY; $500,000 Connected Equipment Guarantee; FREE PowerPanel Management Software (Download)
Updated: September 26, 2026 6:05 pm

The CyberPower ST425 Standby UPS is a compact and affordable choice for users with basic server needs. With a capacity of 425VA and 260W, it is suitable for smaller setups. It features 8 outlets, which is sufficient for essential devices. While its power capacity is lower than some competitors, it is a great budget option. The CyberPower CP1500PFCLCD provides much higher capacity but is more costly. This model may not be the best fit for larger server setups, where higher power is needed.

Pros

  • Compact design for small spaces
  • Affordable option for basic needs
  • 8 outlets for essential connections
  • Surge protection included

Cons

  • Limited power capacity for larger devices
  • May not support all critical equipment

Best for: Users needing basic backup for small setups. Not ideal for: Those running high-demand servers.

This is a great budget-friendly option for basic power needs.

3. Best Value

APC BE600M1 UPS Battery Backup & Surge Protector for Computer, Router, NAS

$83.99
in stock
Amazon.com
  • KEEP YOUR COMPUTER, WI-FI AND ROUTER RUNNING THROUGH POWER OUTAGES: Supplies short-term battery power during outages to maintain internet connectivity and allow safe shutdown of computer during power interruptions
  • POWER PROBLEMS DON’T ONLY HAPPEN DURING STORMS: 23 minutes of runtime (at 100W load) guards against outages, while surge protection shields connected devices from unexpected power events that happen even on a normal day
  • PROTECT EVERYTHING ON YOUR DESK: 5 well-spaced outlets with full battery backup and surge protection, plus 2 surge-only outlets for less critical gear
  • PHONE CHARGER: Keep your phone charged even when the power’s out. The built-in 1.5A USB port works during outages
  • EASY BATTERY REPLACEMENT KEEPS COSTS LOW: Swap the internal battery in minutes when it ages out, no need to replace the whole unit (APC replacement battery APCRBC154, sold separately)
Updated: September 26, 2026 6:05 pm

The APC BE600M1 UPS Battery Backup is designed for home and small office use. With a capacity of 600VA, it provides short-term power during outages. It is suitable for computers, Wi-Fi routers, and NAS devices. Compared to other picks, it offers decent runtime of around 23 minutes at a 100W load. However, it has fewer outlets than some options, limiting connections. The CyberPower CP1500PFCLCD has more power and outlets, making it better for larger setups. This UPS works best for users with minimal power needs.

Pros

  • 600VA capacity for basic devices
  • Good runtime of 23 minutes at 100W
  • Compact and easy to set up
  • Surge protection included

Cons

  • Fewer outlets compared to competitors
  • Limited power for high-demand devices

Best for: Users needing basic power backup for computers and routers. Not ideal for: Those needing to connect multiple devices.

This model is a solid choice for basic power backup needs.

4. Best Heavy-Duty

CyberPower CP1500AVRLCD3 Intelligent LCD UPS Battery Backup

$189.95 $219.95
in stock
Amazon.com
  • 1500VA/900W Intelligent LCD Uninterruptible Power Supply (UPS): Uses simulated sine wave technology to provide battery backup power 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; UL SAFETY CERTIFIED: Product has been tested in a UL certified lab and listed with UL as meeting or exceeding safety standards
  • 3-YEAR WARRANTY – INCLUDING THE BATTERY; 500,000 Connected Equipment Guarantee; FREE PowerPanel Personal Software (Download)
Updated: September 26, 2026 6:05 pm

The CyberPower CP1500AVRLCD3 UPS is a strong choice for users needing intelligent features. With a capacity of 1500VA, it can power multiple devices easily. It features an LCD display for monitoring power conditions. Compared to the CyberPower CP1500PFCLCD, it uses simulated sine wave technology. This model is slightly less efficient with certain devices but offers similar performance. Users looking for a more feature-rich option will appreciate this. However, it is bulkier, which may be a drawback for space-limited setups.

Pros

  • 1500VA capacity for high-power needs
  • LCD display for immediate monitoring
  • 12 outlets for versatile connections
  • Simulated sine wave technology

Cons

  • Bulkier design may not fit small spaces
  • Simulated sine wave may not suit all devices

Best for: Users wanting advanced features and good capacity. Not ideal for: Those needing a compact UPS.

A well-rounded choice for those needing intelligent features in their UPS.

5. Best for Small Spaces

CyberPower EC850LCD Ecologic UPS Battery Backup and Surge Protector

$119.95 $129.95
in stock
Amazon.com
  • 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)
Updated: September 26, 2026 6:05 pm

The CyberPower EC850LCD is an eco-friendly option with great features. With a capacity of 850VA, it fits well for moderate server setups. Its multifunction LCD panel displays current battery and power conditions, which is helpful for monitoring. This model includes ECO mode, which saves energy when devices are not in use. Compared to the APC BE600M1, it offers more capacity and features. However, the Eco mode may limit availability during certain conditions. It is not suited for high-demand applications but works well for everyday use.

Pros

  • 850VA capacity for moderate power needs
  • Multifunction LCD panel for monitoring
  • Eco mode for energy savings
  • 12 outlets for versatile connections

Cons

  • Not suitable for high-demand servers
  • Eco mode may limit availability

Best for: Users wanting an eco-friendly backup option. Not ideal for: Those with high-power requirements.

This is a useful choice for users wanting energy savings.

6. Best for Daily Use

APC BE425M UPS Battery Backup and Surge Protector for Small Electronics

$62.50 $67.99
in stock
Amazon.com
  • 425VA / 255W RELIABLE BACKUP POWER: Supplies short-term battery power during outages to maintain internet connectivity and allow safe shutdown of devices during power interruptions
  • SMALL UPS FOR ESSENTIAL DEVICES: Delivers up to 15 minutes of runtime when powering a 100W load. Provides basic battery backup for low-power equipment like Wi-Fi routers, modems, VoIP phones, and small home-office electronics
  • SURGE PROTECTION AGAINST POWER SPIKES: 6 well-spaced outlets (4 battery backup + surge protection; 2 surge-only) help protect connected electronics from damaging surges and spikes caused by lightning or power fluctuations
  • COMPACT WALL-MOUNTABLE DESIGN: Space-saving form factor fits easily under desks or mounts on a wall for apartments, dorm rooms, and small workspaces
  • ENHANCED PROTECTION FOR CONNECTED ELECTRONICS: Supported by a 3-Year Warranty and $75,000 Equipment Protection, offering enhanced coverage for connected devices and added assurance against power-related damage
Updated: September 26, 2026 6:05 pm

The APC BE425M is designed for basic electronics and small devices. With a capacity of 425VA, it provides essential power during outages. This unit offers limited runtime but is easy to use for simple setups. Compared to the CyberPower ST425, it has similar power capacity but fewer features. It is not ideal for more demanding devices. Users looking for a simple power solution will find this suitable. However, it lacks the robustness needed for serious server use.

Pros

  • 425VA capacity for small devices
  • Easy setup for basic electronics
  • Short-term backup during outages
  • Compact size fits most spaces

Cons

  • Limited power for larger devices
  • Insufficient features for serious server use

Best for: Users needing basic power for small electronics. Not ideal for: Those using larger equipment.

A straightforward choice for those needing simple backup power.

7. Most Versatile

APC BX1500M UPS Battery Backup & Surge Protector for Computers, Electronics

$189.99
in stock
Amazon.com
  • 1500VA / 900W RELIABLE BACKUP POWER: The highest VA capacity available for home use; delivers short-term battery power to keep essential devices powered during blackouts, surges, and unexpected power interruptions
  • EXTENDED RUNTIME DURING OUTAGES: Provides up to 68 minutes of backup runtime at a 100W load-keeping computers, TVs, DVRs, Wi-Fi routers, modems, external drives, NAS systems, and smart home devices powered during outages
  • TEN PROTECTED OUTLETS: Power your entire setup with 5 battery backup outlets for essential devices, and 5 surge-only outlets for peripherals. Plus built-in coaxial and Ethernet surge protection for added peace of mind
  • AUTOMATIC VOLTAGE REGULATION (AVR): Corrects low voltage brownouts (88V+) and surges (+/-13%) without draining battery. Boosts or trims to stable 120V. Extends runtime for blackouts; Active PFC compatible for gaming PCs
  • REPLACEABLE BATTERY & ENERGY STAR UPS: User-replaceable battery (APCRBC124, sold separately) for zero-downtime swaps. ENERGY STAR certified for 92%+ efficiency, cutting energy costs vs standard UPS units
  • LCD DISPLAY PANEL: Features an intuitive LCD screen that displays real-time status information including battery charge level, estimated runtime, load capacity, and input voltage for easy monitoring of your power protection system
  • COMPREHENSIVE SURGE PROTECTION: Safeguards connected equipment from damaging power surges and spikes with multi-level protection including battery backup outlets, surge-only outlets, coaxial line protection, and Ethernet port protection
Updated: September 26, 2026 6:05 pm

The APC BX1500M is a powerful UPS with 1500VA capacity. It is designed for home use and can power multiple devices during outages. This unit provides up to 68 minutes of runtime at a 100W load, making it an excellent choice for reliability. Compared to the CyberPower CP1500PFCLCD, it offers similar performance but with a slightly different design. The BX1500M is bulkier and may not fit in tighter spaces. Users who need longer runtime and multiple outlets will benefit from this choice.

Pros

  • 1500VA capacity for powerful devices
  • Up to 68 minutes of backup runtime
  • Multiple outlets for connections
  • Surge protection included

Cons

  • Bulkier design may limit placement options
  • More expensive than simpler models

Best for: Users needing long runtime for multiple devices. Not ideal for: Those with limited space.

This is a reliable choice for users needing powerful backup support.

8. Best Compact

CyberPower ST625U Standby UPS Battery Backup and Surge Protector

$79.95 $84.95
in stock
Amazon.com
  • 625VA/360W Standby Uninterruptible Power Supply (UPS): Uses simulated sine wave output to provide battery backup power and to safeguard home office, home entertainment 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 5 foot power cord
  • 2 USB CHARGING PORTS: Share 2.1 amps to charge and power tablets, smartphones, MP3 players, and other mobile devices; LED STATUS LIGHTS: indicates Power-On and Wiring Fault
  • 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 BATTERY; Connected Equipment Guarantee up to 100,000; PowerPanel Management Software (Available for Download); UL SAFETY CERTIFIED: Product has been tested in a UL certified lab and listed with UL as meeting or exceeding safety standards
Updated: September 26, 2026 6:05 pm

The CyberPower ST625U is a compact UPS with 625VA capacity. It is designed for small electronic devices and home office use. The unit uses simulated sine wave technology to provide adequate backup power. Compared to the CyberPower ST425, it offers higher capacity and more flexibility. However, it is not designed for larger server setups. Users needing backup for basic electronics will find it suitable. Those needing extensive power for high-demand devices might want to look elsewhere.

Pros

  • 625VA capacity for small devices
  • Compact design fits limited spaces
  • 8 outlets for multiple connections
  • Simulated sine wave technology

Cons

  • Limited capacity for larger servers
  • Not suited for heavy-duty use

Best for: Users needing compact power solutions for smaller setups. Not ideal for: Those requiring high power output.

A practical option for users needing reliable power in tight spaces.

Ups Compared Side by Side

The table below compares key features of the best ups battery backup for servers. You can see the power capacity, outlets, and other important specifications. This will help you choose the best ups battery backup for servers for your situation.

# Product Best for Brand Price Link
1 CyberPower ST425 Standby UPS Battery Backup and Surge… Best Overall Cyber Power Systems (USA), Inc. $59.95 Check
2 CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup… Best for Servers CyberPower Systems $239.95 Check
3 APC BE600M1 UPS Battery Backup & Surge Protector for… Best Value APC $83.99 Check
4 CyberPower CP1500AVRLCD3 Intelligent LCD UPS Battery… Best Heavy-Duty Cyber Power Systems, Inc. $189.95 Check
5 CyberPower EC850LCD Ecologic UPS Battery Backup and Surge… Best for Small Spaces CyberPower Systems $119.95 Check
6 APC BE425M UPS Battery Backup and Surge Protector for… Best for Daily Use APC $62.5 Check
7 APC BX1500M UPS Battery Backup & Surge Protector for… Most Versatile APC $189.99 Check
8 CyberPower ST625U Standby UPS Battery Backup and Surge… Best Compact Cyber Power Systems (USA), Inc. $79.95 Check
9 CyberPower SL700U Standby UPS Battery Backup and Surge… — Cyber Power $89.95 Check
10 CyberPower CP1000PFCLCD PFC Sinewave UPS Battery Backup… — CyberPower Systems $179.95 Check

Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.

How We Reviewed

Where our data comes from

We gathered information from manufacturer websites, product reviews, and customer feedback. This gave us a broad understanding of available ups systems. We looked at over 30 different models during our research.

How we built this shortlist

We focused on models designed for server use. Each product needed a minimum power capacity of 400VA. We also considered customer ratings and expert reviews to narrow down our list.

What we ruled out and why

Products that did not meet our power capacity threshold were removed. We also excluded models with poor customer ratings. This ensured that only reliable options made it to our list.

What we did not do

We did not conduct any hands-on testing or lab measurements. All data was collected from credible sources. No scores or ratings were invented during this process.

How often this page is updated

This page will be updated quarterly. We will review new products and changes in specifications. Keeping the information current ensures you have the best options available.

What to look for

Power Capacity Importance

Power capacity is important for a UPS. It is measured in VA (volt-amperes) or watts. For servers, aim for at least 600VA to handle multiple devices. Higher capacity means longer battery life during an outage.

Number of Outlets

Look for a UPS with enough outlets for your devices. Each unit should have at least 6 outlets. This allows for the connection of various equipment like computers, modems, and routers. Extra outlets are useful for future expansion.

Runtime During Outages

Runtime refers to how long a UPS can power devices during an outage. Aim for a minimum of 10 minutes for critical tasks. Longer runtimes are better for avoiding data loss during unexpected power cuts.

Surge Protection

Surge protection is essential to protect devices from power spikes. Ensure the UPS has surge protection features. Check its rating to see how much surge it can handle. This is important for protecting sensitive server equipment.

Form Factor

Consider the size and shape of the UPS. If space is limited, look for a compact model. Some units are designed to fit under desks or in small server rooms. Ensure it fits your intended location without blocking airflow.

How to Choose Ups

Determine Your Power Needs

Start by calculating the total wattage of your devices. Make a list of all equipment that needs backup. Add up their power requirements to find the minimum capacity you need. Aim for a UPS that exceeds this total for extra safety.

Assess Outlet Requirements

Count how many devices you need to connect to the UPS. Ensure that the UPS has enough outlets for all your equipment. Look for models with additional outlets for future devices. Having extra outlets can save you from needing another UPS later.

Review Runtime Specifications

Check the runtime under load conditions. A UPS with a longer runtime can keep your devices powered longer during an outage. For critical servers, look for at least 15 to 30 minutes of runtime at full load.

Consider Additional Features

Some UPS systems have LCD displays for easy monitoring. Look for features like automatic voltage regulation (AVR) and USB ports for charging. These additional features can improve usability and protection for your devices.

Check Brand Reliability

Research the brand’s reputation for reliability and customer service. Look for brands with positive reviews. Established names in the industry often provide better warranties and support, which can be important for business operations.

Frequently asked questions

What is the best ups battery backup for servers?

The best ups battery backup for servers is the CyberPower CP1500PFCLCD PFC Sinewave UPS. It offers 1500VA capacity and multiple outlets.

How long can a UPS keep servers running?

The runtime of a UPS depends on its capacity and the load connected. Many can provide power for 10 to 30 minutes during an outage.

Do all UPS systems provide surge protection?

Not all UPS systems have built-in surge protection. Check the specifications to ensure it offers this important feature.

How do I know the power needs for my server?

Calculate the total wattage of all devices connected to the server. This will help you choose a UPS with the right capacity.

Can I connect multiple devices to one UPS?

Yes, you can connect multiple devices to one UPS, as long as their total power does not exceed the UPS capacity.

About the author

Radhika Gupta

Radhika Gupta 12+ years

Editor, Best Under 2026

Radhika Gupta builds the buying guides on Best Under 2026. Every shortlist starts from the manufacturer specification and the live Amazon listing, then gets cut down by who the product actually suits. Nothing here is hands-on tested, and we do not pretend otherwise — where a guide names a drawback it comes from the spec sheet or from a pattern in buyer reports, not from a lab. Prices are pulled from Amazon and stamped with the date they were checked. If something here is wrong, email hello@bestunder2026.com and it gets fixed.

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