When selecting the best UPS for routers and modems, reliability and runtime are key. The Amazon Basics UPS Battery Backup & Surge Protector stands out for its affordability and solid backup capacity, making it a great overall choice. The APC Back-UPS Pro 1500VA offers longer runtime and advanced features suitable for more demanding setups. Meanwhile, the CyberPower CP1500PFCLCD provides clean sine wave power, ideal for sensitive equipment. The main tradeoffs often involve balancing power capacity, size, and price. Keep reading for a detailed breakdown of these options and more to find the best fit for your needs.
Key Takeaways
- Higher VA ratings generally provide longer backup time, but come with increased size and cost.
- Features like AVR (Automatic Voltage Regulation) improve stability during voltage fluctuations, crucial for consistent internet connection.
- Compact models are suitable for simple setups, while larger UPS systems support multiple devices and longer outages.
- Pure sine wave UPS units are better for sensitive modems and routers that require clean power, but they tend to be more expensive.
- Surge protection and additional outlets add value, but may influence the overall size and price of the UPS.
More Details on Our Top Picks
Amazon Basics UPS Battery Backup & Surge Protector, 600VA/360W, 8 Outlets, Standby Uninterruptible Power Supply, Power Outage Protection, Compact Design, Black
This Amazon Basics model stands out for its balanced capacity of 600VA / 360W, making it a reliable choice for home routers, modems, and small IoT setups. Compared to the APC Back-UPS 1500VA, it offers less runtime but fits better in tight spaces, trading off extended backup for compactness. Its 8 outlets, split evenly between surge-only and battery backup, provide flexible protection, though the shorter runtime—around 2 minutes at full load—limits its use during prolonged outages. The inclusion of power management software enhances control, but the unit’s capacity means it’s best suited for low-power devices rather than multiple high-draw electronics. It’s an excellent pick for users prioritizing size and affordability over long backup durations, especially in environments where space is limited.
Pros:- Compact and space-efficient design
- Reliable surge and battery backup protection
- Decent runtime of approximately 9 minutes at half load
Cons:- Limited runtime at full load—around 2 minutes
- No LCD display for detailed status
Best for: Home users with basic networking gear needing reliable short-term backup and surge protection in a compact form.
Not ideal for: Power users with multiple or high-wattage devices requiring longer runtime during outages.
- Voltage:120 Volts
- Max Power:360 Watts
- Outlets:8
- Runtime:Approximately 9 minutes at half load
- Form Factor:Compact
- Weight:6.54 Pounds
Bottom line: This UPS suits budget-conscious homeowners who want dependable power protection without extra bulk or extended backup times.
CyberPower ST425 Standby UPS Battery Backup and Surge Protector, 425VA/260W, 8 Outlets, Compact, UL Certified
Compared with the Amazon Basics 600VA, the CyberPower ST425 offers a slightly lower capacity of 425VA/260W, making it ideal for straightforward home networking setups. Its simulated sine wave output ensures safe operation for routers, modems, and small electronics, with 8 outlets providing ample surge and backup protection. The unit’s UL certification adds a layer of trust, and the five-foot power cord makes placement flexible. However, its runtime—about 1.5 minutes at full load—is short, so it’s better for brief outages rather than sustained power loss. The LED status indicator simplifies monitoring, but the smaller capacity limits use to low-power gear. For users seeking a budget-friendly, straightforward backup for essential networking devices, this model hits the mark.
Pros:- Affordable and reliable basic protection
- UL Certified for safety
- Simple LED status indicators
Cons:- Limited runtime—around 1.5 minutes at full load
- No LCD or advanced display features
Best for: Budget-conscious homeowners with minimal backup needs for routers and modems.
Not ideal for: Power users with multiple devices or high power demands needing longer runtime.
- Voltage:120 Volts
- Max Power:260 Watts
- Outlets:8
- Runtime:Approx. 1.5 minutes at full load
- Form Factor:Compact
- Certification:UL Certified
Bottom line: This UPS is a solid choice for users who need reliable short-term backup for essential networking gear on a budget.
Amazon Basics UPS Battery Backup & Surge Protector, 400VA/255W, 6 Outlets, Uninterruptible Power Supply, Small Compact Size, Black
This 400VA/255W Amazon Basics model is tailored for minimal setups like a single router or streaming device, with its very compact size making it ideal for tight spaces. It provides about 6 minutes of backup at half load, but the shorter runtime of approximately 1.5 minutes at full load makes it less suitable for longer outages. Its 6 outlets—split evenly between surge-only and backup—offer adequate protection for small, low-power electronics. The unit’s small footprint and straightforward design are its main strengths, but the capacity limits it to essential devices only. It’s a good option for users who prioritize size above all else and have minimal backup needs.
Pros:- Extremely compact and lightweight
- Affordable for small-scale use
- Simple plug-and-play operation
Cons:- Very limited runtime—around 1.5 minutes at full load
- Only suitable for minimal devices
Best for: Individuals with space-limited environments needing basic power backup for one or two devices.
Not ideal for: Homes or offices with multiple devices or higher power requirements that need longer backup times.
- Voltage:120 Volts
- Max Power:255 Watts
- Outlets:6
- Runtime:Approx. 1.5 minutes at full load
- Form Factor:Small, compact
- Item Weight:Less than 4 pounds
Bottom line: Ideal for space-restricted users who need short-term backup for a single router or small electronics.
SKE VL625 625VA/360W UPS Battery Backup and Surge Protector – Uninterruptible Power Supply with AVR, 7 Outlets, USB and Type-C Charging, RJ45 Port for Computer, Router, Modem, and Home Office Devices
The SKE VL625 offers a higher capacity of 625VA / 360W, making it suitable for a range of devices beyond just routers and modems, including small PCs and surveillance cameras. Its 7 outlets, with 5 dedicated for backup and surge protection, provide flexible device management. The built-in AVR adds stability during voltage fluctuations, and the USB and Type-C ports support charging phones and tablets simultaneously. It’s more feature-rich than the APC Back-UPS 425VA, but its runtime—around 6 minutes at half load—is still limited for extended outages. The inclusion of RJ45 surge protection makes it appealing for network equipment. This model is best for users who want a versatile, feature-packed backup solution for multiple small devices in a home office environment.
Pros:- Higher capacity and wattage than smaller models
- Built-in AVR for voltage stabilization
- Includes USB and Type-C charging ports
Cons:- Runtime of only about 6 minutes at half load
- Relatively higher price point
Best for: Home office users with multiple connected devices needing stable power and charging options.
Not ideal for: Heavy power users with high wattage equipment or those needing long backup durations.
- Voltage:120 Volts
- Max Power:360 Watts
- Outlets:7
- Runtime:Approximately 6 minutes at half load
- Features:AVR, USB, Type-C, RJ45 surge protection
- Weight:around 9 pounds
Bottom line: A strong choice for home office environments where device versatility and charging are priorities over extended runtime.
APC UPS Back-UPS Pro 1500VA UPS, 900W Battery Backup & Surge Protector, AVR, 10 Outlets (NEMA 5-15R), LCD, BX1500M Uninterruptible Power Supply for Computers, Wi-Fi Routers, Home Office Electronics
This APC model offers the highest capacity in this lineup at 1500VA / 900W, making it suitable for larger home office setups or multiple networking devices. Its 10 outlets, including 5 for backup and 5 for surge-only, support comprehensive protection, while the LCD display provides detailed status updates, including runtime estimates and load levels. The built-in AVR ensures stable voltage, and the user-replaceable battery extends lifespan. With an approximate backup runtime of 19 minutes at 300W, it surpasses the others for longer outages, making it ideal for critical systems. However, its larger size and weight—over 24 pounds—mean it’s less suitable for tight spaces or frequent relocation. This UPS is perfect for users who need robust, long-lasting power backup for multiple high-priority devices.
Pros:- High capacity with 1500VA / 900W
- Long runtime—up to 19 minutes at 300W
- LCD display for detailed status and diagnostics
- User-replaceable battery extends lifespan
Cons:- Heavy and bulky—over 24 pounds
- Higher cost relative to smaller models
Best for: Power users with multiple devices or small servers requiring extended runtime and detailed monitoring.
Not ideal for: Users with limited space or those seeking a lightweight, portable solution.
- Voltage:120 Volts
- Max Power:900 Watts
- Outlets:10
- Runtime:Up to 19 minutes at 300W
- Features:LCD, AVR, user-replaceable battery
- Weight:Over 24 pounds
Bottom line: This UPS is best for users needing long backup times and detailed management for multiple critical devices in a home or small office.
APC UPS Battery Backup for Power Outages, 600VA/330W Surge Protector, 7 Outlets, USB Charging, BE600M1 Uninterruptible Power Supply for Computers, Wi-Fi Routers, and Home Office Electronics
This APC BE600M1 stands out for its balanced mix of affordable price, reliable power backup, and user-friendly features. Compared to the Amazon Basics 600VA/360W, it offers similar surge protection but includes a USB port for charging devices during outages, which adds convenience. While its 23-minute runtime at 100W is modest, it’s sufficient for safe shutdowns of typical routers and modems. The battery is easily replaceable, reducing long-term costs, and the surge protection rating of 490 Joules shields devices effectively. However, it’s not meant for high-power devices or prolonged outages, which limits its suitability for critical equipment. This pick makes the most sense for users needing dependable, straightforward backup for home routers and small electronics without fuss.
Pros:- Easy battery replacement reduces long-term costs
- USB charging port for devices during outages
- Surge protection with a high Joule rating
Cons:- Limited runtime of around 23 minutes at 100W load
- Not suitable for high-power or critical devices requiring longer backup
Best for: Home users and small office setups seeking reliable, simple power backup for routers and modems.
Not ideal for: Power users with high energy demands or needing extended runtime during outages.
- Voltage:120 Volts
- Maximum Power:330 Watts
- Outlets:7 (5 backup + surge, 2 surge-only)
- Runtime:23 minutes at 100W
- Battery Life:Supports 3 years
- Surge Protection Rating:490 Joules
Bottom line: Ideal for those wanting a reliable, affordable backup solution for routers and small electronics in a home or small office.
CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector, 1500VA/1000W, 12 Outlets, AVR, Mini Tower, UL Certified
This CyberPower CP1500PFCLCD excels in environments with frequent power fluctuations, thanks to its Automatic Voltage Regulation (AVR) and sinewave output, making it ideal for supporting active PFC power supplies like those in modern routers and computers. Compared with the APC BE600M1, it offers a much higher power capacity and longer runtime, making it better suited for slightly more demanding setups. The color LCD panel provides detailed real-time info on power conditions, helping users monitor their systems more effectively. Its 12 outlets and $500,000 equipment guarantee add to its appeal for more extensive or sensitive setups. However, its larger size and higher price mean it’s less suitable for simple home router protection. This model is better suited to users with multiple devices or those who prioritize power quality and detailed management options.
Pros:- Supports active PFC power supplies with sinewave output
- Detailed LCD panel for real-time monitoring
- High capacity with 12 outlets and long runtime
Cons:- Higher cost and larger footprint
- Overkill for simple router/modem backup needs
Best for: Tech-savvy users with multiple devices or small business environments needing stable power and detailed monitoring.
Not ideal for: Casual home users seeking a simple, low-cost backup for just a router or modem.
- Voltage:120 Volts
- Maximum Power:1000 Watts
- Outlets:12
- Runtime:up to 3 minutes at full load
- Battery Life:Supports 3 years
- Surge Protection Rating:1500 Joules
Bottom line: Best for users who need robust power stability, detailed system monitoring, and support for multiple devices.
APC Back-UPS 425VA / 255W UPS Battery Backup Surge Protector, 6 Outlets, Small UPS for Router, Modem & Home Office, BE425M
This APC BE425M combines a small footprint with sufficient backup power for essential devices like routers and modems, making it a great choice for limited spaces such as apartments or dorms. Compared to larger models like the CyberPower CP1500AVRLCD3, it offers less runtime (around 15 minutes at 100W) but is easier to fit into tight spaces and is more budget-friendly. It provides surge protection and a 3-year warranty, focusing on basic power continuity and device protection. Its 6 outlets include 4 with battery backup and surge, which is enough for most home router setups but not ideal if you need to power multiple or high-energy devices. This model is perfect for users prioritizing size and cost over extended runtime or advanced features.
Pros:- Compact, space-saving design
- Affordable price point
- Reliable surge protection and 3-year warranty
Cons:- Limited runtime of about 15 minutes at 100W
- Fewer outlets and lower capacity than larger models
Best for: Individuals needing a small, affordable UPS primarily for routers, modems, and small electronics.
Not ideal for: Power users requiring long backup times or protection for multiple high-energy devices.
- Voltage:120 Volts
- Maximum Power:255 Watts
- Outlets:6 (4 backup + surge, 2 surge-only)
- Runtime:15 minutes at 100W
- Battery Life:Supports 3 years
- Surge Protection Rating:180 Joules
Bottom line: A great choice for budget-conscious users who need a small, reliable backup for essential networking gear.
CyberPower CP1500AVRLCD3 Intelligent LCD UPS System, 1500VA/900W, 12 Outlets, 2 USB Ports, AVR, Mini Tower, Black
The CyberPower CP1500AVRLCD3 is ideal for users who value detailed system information and power quality, thanks to its color LCD display and AVR feature that stabilizes voltage fluctuations. Compared to the APC BE600M1, it provides a higher power capacity and longer runtime, making it suitable for protecting multiple devices or slightly more demanding setups. The line-interactive topology with simulated sine wave output ensures safe operation for sensitive electronics, including routers, modems, and small NAS units. Its 12 outlets and comprehensive warranty make it a versatile choice for home or small office environments. However, the size and price may be overkill for basic router/modem protection. This model is best for users seeking advanced monitoring and consistent power quality for multiple devices.
Pros:- Color LCD panel for real-time system info
- Supports multiple devices with 12 outlets
- Advanced AVR for voltage stabilization
Cons:- More expensive than basic models
- Slightly larger footprint
Best for: Users needing detailed power management and protection for multiple small devices in home or office settings.
Not ideal for: Those with minimal setup requiring only basic backup for a single router or modem.
- Voltage:120 Volts
- Maximum Power:900 Watts
- Outlets:12
- Runtime:around 3 minutes at full load
- Battery Life:Supports 3 years
- Surge Protection Rating:1500 Joules
Bottom line: Ideal for tech-savvy users who want detailed system monitoring and stable power for multiple devices.

How We Picked
I evaluated these UPS units based on their power capacity (VA and wattage), runtime performance during outages, build quality, and features like surge protection and AVR. Usability factors, such as size and number of outlets, also played a role. Price was considered in relation to overall value, ensuring options are accessible but also reliable. The ranking emphasizes models that balance performance with affordability, prioritizing products that are specifically suited for maintaining internet connections during power disruptions. Units with additional features like USB charging or LCD displays were valued for added convenience and control.Factors to Consider When Choosing Best UPS For Routers And Modems
Choosing the best UPS for your router and modem involves understanding several key factors. The right model can prevent internet outages, protect against surges, and ensure your network stays online during short or long power interruptions. Beyond basic capacity, features like surge protection, runtime, and power quality can make a significant difference. Here’s what to consider to make an informed purchase:Power Capacity (VA and Wattage)
Power capacity determines how long your router and modem can run during an outage. Higher VA and wattage ratings allow for longer backup times and support additional devices. For most home routers and modems, a unit in the 400-600VA range suffices, but larger setups or multiple devices benefit from 1000VA or more. Be cautious of overestimating needs, as larger UPS units tend to be bulkier and more expensive, but may be worth it for critical or prolonged outages.
Runtime and Battery Life
Runtime varies significantly between models and depends on the load. If your goal is to keep your network online during brief outages, a model offering 5-10 minutes of backup is usually enough. For longer outages or if you want to safely shut down equipment, look for units with extended runtime. Keep in mind that increasing runtime often means higher costs and larger size, so define your needs clearly before choosing a model.
Surge Protection and Power Quality
Surge protection shields your equipment from voltage spikes, which are common during thunderstorms or power fluctuations. Many UPS units include surge protection as a standard feature, but it’s worth verifying. For sensitive modems and routers, units with pure sine wave output offer cleaner power, reducing the risk of performance issues or damage. Skipping higher-quality power output can lead to degraded internet stability over time.
Size, Design, and Outlets
Size and design influence where you can place your UPS and how many devices it can support. Compact models fit easily behind furniture or on a desk, but may have fewer outlets. Larger units support multiple devices and provide longer backup times but require more space. Also consider outlets’ layout—some models have spaced outlets to accommodate bulky power adapters, which can be a real convenience in multi-device setups.
Price and Overall Value
Pricing varies widely, from budget-friendly options to high-end models with advanced features. While cheaper units can protect against surges and provide basic backup, they may lack runtime or power quality features. Investing in a slightly more expensive UPS often yields better reliability, longer backup, and future-proofing, especially if you rely heavily on your internet connection for work or streaming. Balance your budget with your specific needs to avoid overpaying for features you won’t use.
Frequently Asked Questions
How long should a UPS keep my router and modem running during an outage?
Most home routers and modems only need a few minutes of backup power to allow for a graceful shutdown or to ride out short outages. Typically, 5 to 10 minutes of runtime is sufficient for most households. If you experience frequent or prolonged outages, consider a UPS with longer backup capacity, possibly supporting 20-30 minutes or more. Remember, longer runtime usually means larger batteries and higher costs, so define your needs accordingly.
Is a pure sine wave UPS necessary for my modem and router?
While many routers and modems can operate on simulated sine wave power, a pure sine wave UPS provides cleaner, more stable electricity, reducing the risk of performance issues or damage over time. If your equipment is sensitive or if you experience frequent power fluctuations, opting for a pure sine wave model is advisable. For basic setups, a modified sine wave UPS might suffice, but investing in a true sine wave unit offers greater peace of mind and long-term reliability.
Can I connect other devices to my UPS besides my router and modem?
Yes, most UPS units designed for home use support multiple outlets, allowing you to connect additional devices like a printer, desktop, or smart home hubs. However, be mindful of the total wattage and VA capacity; overloading the UPS can reduce runtime and affect performance. Prioritize critical devices and ensure the total load stays within the UPS’s rated capacity for optimal operation.
How do I know if a UPS is compatible with my setup?
Compatibility mainly hinges on the VA and wattage ratings aligning with your devices’ power requirements. Check your modem and router’s power consumption specifications, then select a UPS that exceeds those figures to ensure adequate backup time. Also, verify the outlets and port types—most home UPS units use standard NEMA outlets, but some may include USB or Ethernet ports for additional connectivity or charging. Compatibility is straightforward when matching these specs carefully.
Is it worth investing in a high-capacity UPS for a home internet setup?
Investing in a higher-capacity UPS can be worthwhile if you rely heavily on a stable internet connection for work, streaming, or smart home automation. A larger UPS not only provides longer backup times but also supports additional devices, giving you flexibility in your setup. While they tend to be more expensive and bulkier, the added peace of mind during outages and surge protection can justify the investment, especially in areas prone to power instability.
Conclusion
For most users seeking a reliable backup solution for their routers and modems, the Amazon Basics UPS Battery Backup & Surge Protector offers excellent value with decent runtime and straightforward features. If you need longer backup times or support for multiple devices, the APC Back-UPS Pro 1500VA stands out as the best overall choice, especially for home offices or more demanding setups. The CyberPower CP1500PFCLCD is ideal for those with sensitive equipment who prioritize clean power. Beginners should consider compact, easy-to-use models, while power users or those with critical setups should prioritize units with higher VA, pure sine wave output, and longer runtimes. Tailor your choice based on your specific needs, budget, and the importance of uninterrupted internet service.








