If you’re relying on a stable internet connection for work, streaming, or gaming, a UPS for your modem and router is essential to prevent disruptions during power outages. The best models balance sufficient power capacity with ease of use and compact design. The CyberPower CP1500PFCLCD stands out as the best overall choice, offering sinewave power for sensitive devices. For those on a budget, the APC BE600M1 provides reliable backup in a small package. Keep in mind that higher-capacity UPS units tend to be larger and more expensive, while smaller models may not support longer outages. Continue reading for a detailed comparison to help you find the right fit for your home internet setup.
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Key Takeaways
- Higher VA and wattage ratings extend backup time for your modem and router during outages.
- Pure sinewave models provide cleaner power, which is better for sensitive networking equipment.
- Compact designs favor space-saving setups but may have limited runtime and outlets.
- Surge protection varies; not all UPS units include comprehensive surge protection for network cables.
- Ease of use features like LCD displays and automatic shutdown improve reliability and user experience.
| ups for modem and router | Capacity | Outlets | Warranty |
|---|---|---|---|
| CyberPower SL700U Standby UPS | 700VA/370W | 8 | 3 years including battery |
| CyberPower CP1500PFCLCD PFC Si | 1500VA/1000W | 12 (6 backup + surge, 6 surge only) | 3 years |
| CyberPower ST425 Standby UPS B | 425VA/260W | 8 | 3 years |
| APC Back-UPS 425VA / 255W UPS | 425VA/255W | 6 | 3 years |
| CyberPower CP1500AVRLCD3 Intel | 1500VA/900W | — | 3 years |
| CyberPower EC850LCD Ecologic U | — | — | — |
| APC Back-UPS Pro 1500VA Batter | — | 10 (5 battery backup + 5 surge-only) | 3 years |
| GOLDENMATE 1000VA/800W Lithium | 1000VA/800W | 8 | — |
| APC BE600M1 UPS Battery Backup | 650VA / 390W | 5 with backup + 2 surge-only | 3 years |
| APC Back-UPS 650VA / 390W Batt | 650VA / 390W | 8 (4 backup + 4 surge-only) | 3 years |
More Details on Our Top Picks
CyberPower SL700U Standby UPS Battery Backup and Surge Protector, 700VA/370W, 8 Outlets, Slim Profile, UL Certified
The CyberPower SL700U stands out for its slim profile, making it ideal for space-constrained setups like home offices or small living rooms. Compared to larger models like the CyberPower CP1500PFCLCD, it offers less capacity but excels in portability and simplicity, suitable for supporting a modem and a couple of low-power devices during outages. However, its 700VA/370W capacity limits its ability to handle multiple high-energy devices simultaneously, and the simulated sine wave output may not be ideal for sensitive electronics. This UPS makes the most sense for users who need a reliable backup for their router and modem without occupying much space, but it’s not suitable for power-hungry setups or extensive networking gear.Pros:- Slim, space-saving design fits easily in tight spaces
- Includes both battery backup and surge protection
- USB ports for mobile device charging
- UL safety certification and 3-year warranty
Cons:- Limited capacity may not support multiple devices simultaneously
- Simulated sine wave output may be less suitable for sensitive electronics
- Only 8 outlets, which might be insufficient for larger setups
Best for: Home users with limited space seeking reliable backup for modem, router, and small electronics
Not ideal for: Users with high-power devices or extensive networking setups requiring more capacity and cleaner power
- Capacity:700VA/370W
- Outlets:8
- USB Ports:2
- Warranty:3 years including battery
- Certification:UL Certified
- Input:NEMA 5-15P right angle, 45 degree offset plug
Our verdict“This UPS is best for space-conscious users needing basic backup power for their home internet devices.”
CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector, 1500VA/1000W, 12 Outlets, AVR, Mini Tower, UL Certified
The CyberPower CP1500PFCLCD offers substantial capacity with 1500VA/1000W, making it a superior choice for protecting multiple devices like computers, gaming gear, and networking equipment—especially when compared to the smaller SL700U. Its sine wave output ensures cleaner power delivery, which is advantageous for sensitive electronics. The inclusion of 12 outlets and an LCD display provides detailed real-time status, but its larger, mini-tower form factor might not fit in very tight spaces, unlike the slim SL700U. This UPS is best suited for users with a more extensive home network or PC setup who need reliable, high-capacity backup, though it’s less ideal for those with limited space or fewer devices.Pros:- High capacity supports multiple devices during outages
- Pure sine wave output for sensitive electronics
- Large LCD display for detailed status updates
- Automatic voltage regulation extends battery life
Cons:- Bulkier design may not fit in small spaces
- More costly and energy-consuming than smaller models
- Overkill for simple modem/router backup only
Best for: Home users with multiple high-demand devices including computers, gaming consoles, and networking gear
Not ideal for: Users with minimal space or only basic internet devices, as its size and capacity are unnecessary
- Capacity:1500VA/1000W
- Outlets:12 (6 backup + surge, 6 surge only)
- USB Ports:2 (Type-A and Type-C)
- Display:Color LCD
- Warranty:3 years
- Guarantee:$500,000 Connected Equipment
Our verdict“Ideal for users who need high-capacity, clean power for complex home networking and computing setups.”
CyberPower ST425 Standby UPS Battery Backup and Surge Protector, 425VA/260W, 8 Outlets, Compact, UL Certified
The CyberPower ST425 offers a compact, reliable backup with 425VA/260W capacity, making it suitable for small setups like home offices or gaming consoles—more than enough for a modem and a few peripherals. Its 8 outlets provide flexibility, but it lacks USB charging ports and has limited runtime, especially during extended outages. Compared to the larger SL700U, its smaller capacity means it’s more suited for low-power devices and does not support high-energy equipment. This model works well for users prioritizing space and simplicity, but it’s not designed for high-demand or multiple simultaneous device protection.Pros:- Compact and lightweight design
- Reliable backup for essential low-power devices
- Includes surge protection and UL certification
- Affordable and easy to install
Cons:- Limited runtime during power outages
- No USB charging ports
- Capacity may be insufficient for multiple or high-power devices
Best for: Home users with limited space needing backup for modem, router, and low-power electronics
Not ideal for: Power users with extensive networking gear or high-power devices requiring longer runtime
- Capacity:425VA/260W
- Outlets:8
- Runtime:Up to 15 minutes at 100W
- Warranty:3 years
- Protection Coverage:$75,000
- Form Factor:Compact
Our verdict“Best for minimal setups where space saving and basic protection are priorities, not extended runtime.”
APC Back-UPS 425VA / 255W UPS Battery Backup Surge Protector, 6 Outlets, Small UPS for Router, Modem & Home Office, BE425M
The APC Back-UPS BE425M provides a straightforward, compact solution for backing up essential home electronics like routers and modems. Its 425VA/255W capacity is similar to the CyberPower ST425 but with fewer outlets—only 6. Its small size and wall-mount design make it ideal for tight spaces, but runtime is limited, making it less suitable for extended outages or high-power devices. Compared to the CyberPower SL700U, it lacks USB ports and advanced features, focusing solely on basic backup and surge protection. This UPS makes sense for budget-conscious users who need simple, reliable support for their internet equipment but not for those with extensive or high-power needs.Pros:- Small, space-efficient design
- Reliable surge and battery backup protection
- Wall-mountable for easy placement
- 3-year warranty included
Cons:- Limited runtime for extended outages
- No USB charging ports
- Fewer outlets than larger models
Best for: Budget-minded homeowners seeking simple backup for internet modems and routers
Not ideal for: Users with multiple devices or requiring longer backup during outages
- Capacity:425VA/255W
- Outlets:6
- Runtime:Up to 15 minutes at 100W
- Warranty:3 years
- Protection Coverage:$75,000
- Form Factor:Wall-mountable
Our verdict“A solid choice for basic, space-efficient backup of essential internet devices on a budget.”
CyberPower CP1500AVRLCD3 Intelligent LCD UPS Battery Backup
The CyberPower CP1500AVRLCD3 offers a robust 1500VA/900W capacity with automatic voltage regulation, making it ideal for protecting critical devices like computers, NAS systems, or home entertainment setups. Its mini-tower form factor and color LCD display provide clear, real-time information about power status—more detailed than the SL700U’s simple LEDs. Compared to the smaller SL700U or the basic APC BE425M, this model supports more demanding applications with cleaner power. However, its 900W maximum limits its use to fewer high-power devices at once, and the 8-hour battery charge time can be inconvenient. It’s best suited for users who need reliable, monitored backup for essential electronics, but overkill for simple modem/router protection.Pros:- High capacity supports multiple critical devices
- Automatic voltage regulation for longer battery life
- Color LCD display with detailed info
- Supports longer runtime for essential electronics
Cons:- Limited to 900W maximum output
- Long battery charge time of 8 hours
- Bulkier size not ideal for small spaces
Best for: Home users with critical electronics requiring clean power and detailed monitoring
Not ideal for: Casual users with minimal devices or those needing quick, easy setup
- Capacity:1500VA/900W
- Form Factor:Mini-Tower
- Display:Color LCD
- Input Voltage:120 V
- Battery Charge Time:8 hours
- Warranty:3 years
Our verdict“This UPS is for users who need dependable, monitored backup for essential electronics and can accommodate its size and capacity limits.”
CyberPower EC850LCD Ecologic UPS Battery Backup and Surge Protector, 850VA/510W, 12 Outlets, ECO Mode, Compact, UL Certified
This model stands out for its reliable surge protection and battery backup in a compact form, making it ideal for home internet setups and small office devices. Compared to the APC BE600M1, it offers more outlets—12 versus 5—and features an ECO mode that can reduce energy consumption, a plus for eco-conscious users. However, its runtime is limited to about 2 minutes at full load, which may not suffice during long outages. The LCD panel provides clear, real-time status updates, helping users monitor performance easily. While the voltage discrepancy (listed as 230V) might confuse North American users expecting 120V, overall, it delivers dependable power in a small footprint. This pick makes the most sense for those with limited space who need surge protection and short-term backup for essential devices.
Pros:- Reliable battery backup and surge protection for multiple devices
- Eco mode reduces energy consumption
- Multifunction LCD for real-time status updates
- Three-year warranty with batteries included
Cons:- Limited runtime of only 2 minutes during outages
- Voltage listing as 230V may cause confusion in North America
- Number of outlets may be insufficient for larger setups
Best for: Home users with small setups or those prioritizing energy efficiency and compact design.
Not ideal for: Users needing extended backup time or supporting high-power devices, as runtime is limited.
- Voltage:120 Volts
- Maximum Power:510 Watts
- Form Factor:Compact
- Input Voltage:120 Volts
- Number of Outlets:12
- Runtime:2 minutes
Our verdict“Best suited for small, space-constrained home internet setups needing reliable surge protection and short-term backup.”
APC Back-UPS Pro 1500VA Battery Backup and Surge Protector
This model is ideal for users who need extended backup power for multiple devices, outperforming smaller options like the APC BE600M1 by offering 1500VA capacity and up to 68 minutes of runtime at 100W load. It features automatic voltage regulation, which stabilizes power during fluctuations, thereby extending battery life and protecting sensitive equipment. The LCD screen provides detailed, real-time monitoring, but some users find it difficult to read in bright environments. Compared to the CyberPower SL700U, it offers a higher capacity and more comprehensive surge protection, making it better suited for medium to large setups. Its user-replaceable battery simplifies maintenance but adds a cost and complexity layer. This UPS makes sense for those with multiple devices that require longer backup times and stable power during outages.
Pros:- Up to 68 minutes of backup at 100W load
- Automatic voltage regulation stabilizes power
- User-replaceable battery for easy maintenance
- High efficiency with Energy Star certification
Cons:- Battery replacement requires purchasing separate model
- Limited to 1500VA capacity, not suitable for very high-power devices
- LCD display can be hard to read in bright conditions
Best for: Home offices or small business setups with multiple electronics that need longer backup durations.
Not ideal for: Those with very high power needs exceeding 900W or who prefer models with a built-in LCD for easier monitoring.
- VA Capacity:1500VA
- Wattage:900W
- Outlets:10 (5 battery backup + 5 surge-only)
- Runtime at 100W:68 minutes
- Automatic Voltage Regulation:Yes
- Warranty:3 years
Our verdict“Ideal for users seeking longer backup times and stable power for multiple home or office devices.”
GOLDENMATE 1000VA/800W Lithium UPS Battery Backup and Surge Protector with LiFePO4 Batteries, 8 Outlets, LCD Display
This pick distinguishes itself with a lithium iron phosphate (LiFePO4) battery that boasts over 10 years of lifespan and more than 5000 charge cycles, outperforming traditional lead-acid options like the CyberPower EC850LCD. It offers eight outlets with surge protection and an LCD display for real-time monitoring, making it suitable for critical network and computer setups. The advanced safety features and quiet operation further appeal to tech-savvy users prioritizing longevity and safety. Its main tradeoff is the noise from the built-in fan and the need for a compatible power cable. Compared to the APC BE600M1, it supports higher power and longer lifespan, but at a higher initial cost. This model is best for users who want a durable, low-maintenance backup with long-term reliability.
Pros:- Over 10 years lifespan with 5000+ charge cycles
- Multiple surge-protected outlets
- Real-time LCD monitoring
- Advanced safety features and quiet operation
Cons:- Cooling fan noise may be noticeable during operation
- Requires compatible power cable for setup
- Higher initial cost compared to traditional lead-acid UPS
Best for: Tech enthusiasts or professionals seeking a long-lasting, reliable backup for critical home or small business network devices.
Not ideal for: Users with limited space or those needing a budget-friendly, simple solution, due to higher cost and noise from cooling fan.
- Capacity:1000VA/800W
- Battery Type:LiFePO4
- Lifespan:10 years
- Charge Cycles:5000+
- Outlets:8
- Cooling System:Built-in fan
Our verdict“Best suited for users requiring a long-lasting, reliable backup with minimal maintenance for critical network and computer equipment.”
APC BE600M1 UPS Battery Backup & Surge Protector for Computer, Router, NAS
This model offers a straightforward solution for protecting essential devices like modems, routers, and small NAS units, with a modest 650VA capacity. It provides up to 23 minutes of runtime at 100W, enough to save work or shut down devices safely during brief outages. Its simple design lacks an LCD display but features easy battery replacement, keeping long-term costs manageable. When compared to the CyberPower EC850LCD, it has fewer outlets—only 5 backup plus 2 surge-only—which could limit larger setups. This UPS is well-suited for users seeking a low-cost, reliable backup for basic internet and networking devices but isn’t ideal for supporting high-power or multiple high-demand devices simultaneously.
Pros:- Provides up to 23 minutes of backup at 100W
- Surge protection shields connected devices
- Easy, cost-effective battery replacement
- Compact and lightweight design
Cons:- Limited runtime for high-power devices
- Fewer outlets compared to larger models
- No LCD display for real-time monitoring
Best for: Home users or small office setups needing basic surge protection and short-term backup for internet devices.
Not ideal for: Power users with larger or high-power setups requiring longer backup durations or more outlets.
- Runtime:23 minutes at 100W
- Outlets:5 with backup + 2 surge-only
- Capacity:650VA / 390W
- Protection:Surge, power outages
- Battery Replacement:Yes
- Warranty:3 years
Our verdict“Best for those seeking a simple, affordable backup solution for essential home internet and computing devices.”
APC Back-UPS 650VA / 390W Battery Backup & Surge Protector, 8 Outlets, RJ45 Ethernet Protection, BE650G1
This model offers a balanced mix of capacity and features, making it suitable for protecting home office and internet equipment like modems, routers, and smart devices. It provides up to 29 minutes of runtime at 100W, which is longer than the APC BE600M1, supporting small-scale setups during outages. Its 8 outlets include both battery backup and surge-only options, giving flexibility for various devices. The inclusion of Ethernet surge protection adds value for users concerned about line surges. While its capacity isn’t enough for high-demand equipment, it’s an upgrade over smaller models for users who need more runtime and outlets without stepping into larger, more expensive units. Battery replacement may require purchasing the specific RBC17 model, which adds some ongoing cost.
Pros:- Up to 29 minutes of backup at 100W
- Multiple outlets with both battery backup and surge protection
- Includes Ethernet surge protection
- User-replaceable battery
Cons:- Limited runtime for high-demand devices
- Battery replacement requires specific model
- Mid-size capacity may not support high-power equipment
Best for: Home office users with multiple devices needing reliable backup and surge protection, especially those with modest power demands.
Not ideal for: High-power setups or users needing extremely long backup durations, as runtime is limited at higher loads.
- Capacity:650VA / 390W
- Outlets:8 (4 backup + 4 surge-only)
- Runtime at 100W:up to 29 minutes
- Protection:Surge, Ethernet
- Warranty:3 years
- Equipment Protection:$75,000
Our verdict“Ideal for small to medium home and office setups needing dependable backup with additional Ethernet surge protection.”

How We Picked
In selecting these UPS units, I focused on performance, build quality, and features that directly impact home internet reliability. Priority was given to models with sufficient power capacity to support typical modem and router loads for extended outages. Ease of installation, user interface, and surge protection were also key factors, as they influence usability and safety. To rank the options, I evaluated each product’s wattage, runtime, surge protection features, and overall value. This approach ensures that the top picks balance power, reliability, and affordability for home internet setups.Factors to Consider When Choosing Ups For Modem And Router
Choosing the right UPS for your modem and router involves understanding several key factors. Not all UPS units are created equal, and selecting the wrong one can lead to insufficient backup time or even damage your equipment. This guide highlights the crucial considerations to help you make an informed decision that balances performance, cost, and ease of use.Capacity and Runtime
The capacity of a UPS, measured in VA and watts, determines how long your modem and router can stay online during an outage. Higher capacity units typically offer longer backup times but tend to be larger and more expensive. For most home internet setups, a UPS with at least 700VA/400W provides a few hours of backup, which is ideal for brief outages or safe shutdowns. Be cautious of models with excessive capacity if your needs are simple, as they may be overkill and costlier without added benefit.
Pure Sinewave vs. Simulated Sinewave
The type of power output matters, especially for sensitive networking gear. Pure sinewave UPS units deliver clean, stable power similar to utility supply, reducing the risk of equipment damage or instability. Simulated sinewave models are more affordable but may cause issues with some modems and routers, especially those with sensitive electronics. If reliability and longevity are priorities, investing in a pure sinewave UPS is often worth the extra cost.
Surge Protection and Connectivity
Many UPS units include surge protection, shielding your modem and router from voltage spikes. However, not all models protect network cables like Ethernet or coax lines, which can be vulnerable to surges. For comprehensive protection, look for units with RJ45 Ethernet surge protection, especially if your setup includes external connections. Combining surge protection with backup power ensures your internet remains stable and protected against external power fluctuations.
Ease of Use and Management Features
Features like LCD displays, automatic shutdown, and USB management are valuable for monitoring your UPS status and ensuring safe device shutdowns during outages. These features reduce the risk of data loss and extend your equipment’s lifespan. Consider how user-friendly the interface is, especially if you prefer a plug-and-play setup or want detailed runtime information. Higher-end models tend to offer more control and better integration with home automation or management software.
Size, Placement, and Aesthetics
Size and design influence where you can place your UPS, especially in cluttered or limited spaces. Compact models are easier to fit behind routers or in tight spaces, but may sacrifice runtime or number of outlets. Larger units often provide more outlets and longer backup times but can be cumbersome. Think about your space, cable management needs, and whether aesthetics matter in your setup to select a model that integrates smoothly into your home environment.
Frequently Asked Questions
How long should a UPS keep my modem and router running during a power outage?
The runtime depends on the UPS’s capacity and your device’s power draw. For typical home internet equipment, a UPS rated around 700VA to 1500VA can provide backup for 30 minutes to a few hours. If you experience frequent outages or need to work through interruptions, choosing a higher-capacity model with longer runtime is advisable. Keep in mind that adding other devices reduces overall runtime, so size your UPS accordingly.
Is a pure sinewave UPS necessary for my modem and router?
While not always strictly necessary, a pure sinewave UPS offers cleaner, more stable power, which benefits sensitive networking equipment. Many budget models use simulated sinewave output, which can cause minor issues like device resets or instability over time. For critical or high-performance setups, investing in a pure sinewave UPS reduces the risk of damage and ensures reliable operation during power fluctuations.
Can I use a regular backup battery instead of a UPS for my home internet?
Regular backup batteries or power banks are generally not suitable for powering a modem and router over extended periods. They often lack the necessary surge protection, AC conversion, and capacity to handle continuous loads. A UPS is specifically designed to provide reliable backup power, surge protection, and safe shutdown features, making it a more dependable choice for maintaining internet connectivity during outages.
What is the ideal capacity for a UPS supporting a modem and router?
For most home setups, a UPS rated around 700VA to 1500VA is sufficient, providing enough power to run your modem and router for at least 30 minutes or more. If you have a larger home network or require longer backup times, consider models with higher VA and wattage ratings. Always check the power draw of your equipment to select a UPS that can handle the load comfortably without being overstressed.
Should I prioritize surge protection or backup runtime when choosing a UPS?
Both features are important, but the primary concern should be your specific needs. If your area experiences frequent power surges, surge protection is vital to safeguard your equipment. If outages are common or last long, backup runtime becomes more critical. Ideally, choose a model that balances both—providing sufficient surge protection and enough capacity for your required backup time, especially if you depend heavily on continuous internet access.
Conclusion
For most home internet users, the CyberPower CP1500PFCLCD offers the best overall balance of capacity, power quality, and user-friendly features. It’s well-suited for those who want reliable, clean power and longer backup times. The APC BE600M1 makes a strong case for budget-conscious buyers seeking straightforward surge protection and short-term backup. For advanced setups or high-demand environments, the CyberPower CP1500AVRLCD and other premium models provide extended runtime and enhanced features. Beginners should prioritize compact, easy-to-use units, while power users with extensive setups may need larger, more capable UPS systems to keep everything running seamlessly during outages.
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