In today’s connected world, reliable internet access is essential—especially during power outages. A battery backup for WiFi modem and router ensures your internet stays up and running when the power goes out, providing uninterrupted connectivity for work, streaming, or emergencies. This guide reviews the best options available, compares key features, and offers expert tips to help you choose the perfect backup solution for your needs.
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| 1 Best Overall |
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APC UPS 600VA / 330W UPS Battery Backup...
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| 2 Best Value |
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Mini UPS DC 20000mAh Battery Backup & Surge...
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| 3 |
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Yuuki Power Mini UPS for WiFi Router, DC...
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| 4 |
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Amazon Basics UPS Battery Backup & Surge Protector,...
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| 5 |
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Mini DC UPS Uninterruptible Power Supply, UPS Battery...
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| 6 |
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GOLDENMATE 1000VA/800W Lithium UPS Battery Backup and Surge...
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| 7 |
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Mini UPS for WiFi Router/Modem/Set top Box Devices....
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| 8 |
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DC 12V-2A Mini UPS Battery Backup Interface with...
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| 9 |
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Shanqiu Mini UPS Battery Backup Uninterruptible Power Supply...
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| 10 |
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CyberPower ST425 Standby UPS Battery Backup and Surge...
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Top 10 Battery Backup for WiFi Modem and Router Reviews
1. APC UPS Battery Backup & Surge Protector
- KEEPS DEVICES RUNNING DURING POWER OUTAGES: Reliable 650VA / 390W UPS battery backup that protects home office electronics and keeps essential devices powered during blackouts, surges, and unexpected power interruptions
- STAY CONNECTED WHEN IT MATTERS MOST: Delivers up to 29 minutes of runtime when powering a 100W load. Mid-Size battery backup for computers, Wi‑Fi routers, modems, external drives, NAS, and Smart-Home IoT devices
- POWER & CHARGE ALL YOUR ESSENTIAL DEVICES: 8 well‑spaced outlets (4 battery backup + surge protection, 4 surge‑only), provide reliable battery backup and surge protection for multiple devices
- INSTANT UPS STATUS & EASY BATTERY REPLACEMENT: Clear indicators and mutable audible alerts give quick UPS status updates. The battery is User‑replaceable with genuine APC replacement battery Model RBC17 (sold separately)
- 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
- Capacity: 600VA / 360W
- Backup Time: Up to 30 minutes
- Outlets: 8 surge-protected outlets (4 battery-backed)
- Connectivity: USB port for management
Pros: Reliable power backup, surge protection, compact design, easy setup.
Cons: Slightly noisy during operation, limited backup time for high-power devices.
Price Range: $100-$130.
Best For: Small home offices or personal use with moderate power needs.
2. Tripp Lite UPS System 600VA
- 600VA UPS: 300W uninterruptible power supply provides low-maintenance battery backup and surge protection. Restarts automatically once power is restored, regardless of battery charge level. Features 190 joules of surge protection.
- HOME, OFFICE, AND RETAIL UPS: Built for computing, networking and AV applications. Protect your desktop PC, home entertainment system, wi-fi router, point-of-sale equipment and more. Perfect for kiosks, food service, and light industrial environments.
- SIMPLE SETUP & RELIABLE POWER: Easy set up in minutes. Just plug into a grounded wall outlet, press the power button and connect devices. An audible alarm and red LED indicates low battery or fault. Green LED indicates power and line/battery mode status.
- USER-FRIENDLY DESIGN: Internal battery is easy replaceable with Eaton's AG-075D cartridge. UPS filters out disruptive EMI/ RFI disturbances that can cause hardware damage. A resettable circuit breaker helps prevent dangerous system overloads.
- WALL MOUNT COMPATIBILITY: Small size is suitable for desktop, floor, and wall placement. Keyhole mounting slots on the bottom are spaced in a 100 x 100 mm VESA pattern to enable easy wall mounting. Also allows installation with user-supplied cable ties.
- Capacity: 600VA / 330W
- Backup Time: 20-30 minutes
- Outlets: 6 outlets (4 with battery backup)
- Features: Automatic voltage regulation (AVR)
Pros: Good surge protection, AVR feature stabilizes voltage, affordable.
Cons: Shorter battery life under heavy load, bulky design.
Price Range: $95-$125.
Best For: Protecting your modem and router during outages in small setups.
3. APC BE600M1 UPS Battery Backup
- 600VA / 330W RELIABLE BACKUP POWER: Supplies short‑term battery power during outages to maintain internet connectivity and allow safe shutdown of computer and other devices during power interruptions.
- STAY CONNECTED WHEN IT MATTERS MOST: Delivers up to 23 minutes of runtime when powering a 100W load. Mid-Size battery backup for computers, Wi‑Fi routers, modems, external drives, NAS, and Smart-Home IoT devices
- POWER & CHARGE ALL YOUR ESSENTIAL DEVICES: 7 well‑spaced outlets (5 battery backup + surge protection, 2 surge‑only), plus a USB‑A charging port (1.5A), provide reliable protection and fast charging for multiple devices
- INSTANT UPS STATUS & EASY BATTERY REPLACEMENT: Clear indicators and mutable audible alerts give quick UPS status updates. The battery is User‑replaceable with genuine APC replacement battery Model APCRBC154 (sold separately)
- 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
- Capacity: 600VA / 330W
- Backup Time: 15-20 minutes
- Outlets: 7 outlets (4 with battery backup)
- Features: USB charging port, LED status indicator
Pros: Compact size, easy to use, reliable battery backup.
Cons: Limited runtime for high-power devices, basic display.
Price Range: $90-$120.
Best For: Small home networks requiring reliable power during outages.
4. CyberPower CP600LCD UPS
- 650VA/390W Ecologic Battery Backup Uninterruptible Power Supply (UPS) System uses simulated sine wave output to safeguard workstations, networking devices, and home entertainment equipment
- EIGHT NEMA 5-15R OUTLETS: Four battery backup & surge protected outlets; Four 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)
- Capacity: 600VA / 360W
- Backup Time: 25-30 minutes
- Outlets: 8 total (4 battery-backed)
- Features: LCD display, AVR technology
Pros: Clear LCD interface, excellent surge protection, quiet operation.
Cons: Slightly heavier, limited runtime for high load.
Price Range: $105-$135.
Best For: Home offices seeking detailed status updates.
5. Eaton 3S UPS Battery Backup
- Quiet operation - an internal fan only operates when in battery mode or correcting severe voltage variations, and a repetitive, audible alarm notification when on battery, can be disabled or silenced
- Power more devices with (8) outlets - (4) battery backup and surge protection outlets, (4) surge protection only outlets (5-15R outlets)
- Provide surge protection for your network data line as well as your powered devices (10/100 Mbps network support)
- Plug-and-play power management capability - USB port for automatic integration with Windows, Mac and Linux
- 3-year warranty on the UPS system and the internal batteries (user-replaceable), plus a $150,000 load protection guarantee for your connected equipment
- Capacity: 550VA / 330W
- Backup Time: 10-15 minutes
- Outlets: 6 outlets (4 with battery backup)
- Features: Compact design, audible alarms
Pros: Space-saving, easy to install, decent backup time.
Cons: Shorter runtime, limited advanced features.
Price Range: $80-$110.
Best For: Small routers or modems in limited spaces.
6. APC Back-UPS BE850M2
- 850VA / 450W RELIABLE BACKUP POWER: Supplies short‑term battery power during outages to maintain internet connectivity and allow safe shutdown of computer and other devices during power interruptions.
- STAY CONNECTED WHEN IT MATTERS MOST: Delivers up to 20 minutes of runtime when powering a 150W load. Mid-Size battery backup for computers, Wi‑Fi routers, modems, external drives, NAS, and Smart-Home IoT devices
- POWER & CHARGE ALL YOUR ESSENTIAL DEVICES: 9 well‑spaced outlets (6 battery backup + surge protection, 3 surge‑only), plus 2 USB‑A ports (5V/2.4A shared), provide reliable protection and fast charging for multiple devices
- INSTANT UPS STATUS & EASY BATTERY REPLACEMENT: Clear indicators and mutable audible alerts give quick UPS status updates. The battery is User‑replaceable with genuine APC replacement battery Model RBC17 (sold separately)
- 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
- Capacity: 850VA / 450W
- Backup Time: 20-25 minutes
- Outlets: 8 (4 battery-backed)
- Features: USB charging, LED indicators
Pros: Higher capacity, versatile for multiple devices, user-friendly.
Cons: Slightly larger footprint, pricier than smaller models.
Price Range: $120-$150.
Best For: Powering multiple home devices alongside WiFi equipment.
7. CyberPower EC850LCD UPS
- 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)
- Capacity: 850VA / 510W
- Backup Time: 15-20 minutes
- Outlets: 8, with 4 battery backup
- Features: LCD display, AVR
Pros: Reliable, detailed display, good surge protection.
Cons: Larger size, needs proper ventilation.
Price Range: $130-$160.
Best For: Small business or home use with multiple connected devices.
8. Vertiv Liebert PSA5 UPS
- SURGE PROTECTION AND BATTERY BACKUP: The 1500VA/900W UPS has AVR to extend battery life and USB communications for notifications and controlled shutdown with free software download.
- 10 OUTLETS, 2 USB CHARGING PORTS: It has 5 surge only and 5 battery & surge outlets; 2 are widely spaced to accommodate transformer-block plugs without covering adjacent outlets.
- LCD DISPLAY: Monitor run time, load capacity, battery status and input/output voltage and frequency.
- ENERGY EFFICIENT: This Energy Star certified UPS meets eco-friendly requirements.
- NO HASSLE WARRANTY: 3-year full unit coverage including battery with advanced replacement warranty.
- Capacity: 500VA / 300W
- Backup Time: Up to 20 minutes
- Outlets: 6, with 3 battery-backed
- Features: Compact, simple operation
Pros: Lightweight, easy to install, affordable.
Cons: Limited runtime for high-powered setups, basic features.
Price Range: $70-$100.
Best For: Basic WiFi modem and router backup.
9. APC UPS Battery Backup & Surge Protector (BR1500G)
- APC 1500 VA / 865W battery backup power supply
- 10 Outlets (NEMA 5-15R): 5 surge protector with battery backup; 5 outlets with Surge Protection Only
- Automatic Voltage Regulation (AVR): instantly corrects low/high voltage fluctuations without discharging the battery, and is Active PFC compatible
- A supplemental external Battery Pack provides even more runtime during outages (Sold Separately, model BR24BPG)
- 6' Power Cord, right-angle 3-prong wall plug (NEMA 5-15P), and free Windows PC power-management software (Mac OS uses native "Energy Saver" Settings); Replaceable battery (model APCRBC124, sold separately)
- Capacity: 1500VA / 865W
- Backup Time: 45 minutes for low load
- Outlets: 10 outlets (5 battery-backed)
- Features: LCD display, sine wave output
Pros: High capacity, long backup time, robust surge protection.
Cons: Larger and heavier, higher price.
Price Range: $300-$350.
Best For: Powering entire home networks and multiple devices during outages.
10. APC UPS Pro BR1500MS2
- 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
- STAY CONNECTED WHEN IT MATTERS MOST: Provides up to 11 minutes of backup runtime at a 500W load—keeping computers, TVs, DVRs, Wi-Fi routers, modems, external drives, NAS systems, and smart home devices powered during outages
- SINEWAVE POWER: Protect expensive hardware from damage with clean power that mimics utility electricity, ensuring your sensitive components run cooler and last longer. Auto Voltage Regulation boosts low/trims high voltage
- TEN PROTECTED OUTLETS: Power your entire setup with 6 battery backup outlets for essential devices, plus 4 surge-only outlets for peripherals—plus built-in coaxial and Ethernet surge protection for added peace of mind
- REAL-TIME STATUS DISPLAY: Instantly view remaining runtime, power load (watts), and system status on the easy-to-read LCD screen, angled for comfortable viewing from a seated position
- Capacity: 1500VA / 900W
- Backup Time: 40-50 minutes
- Outlets: 8 with battery backup
- Features: LCD display, network management
Pros: Advanced management features, high capacity, reliable backup.
Cons: Higher cost, larger size.
Price Range: $280-$400.
Best For: Powering critical devices, including WiFi modems, in larger homes or offices.
Comparison Table
| Product Name | Price | Key Feature | Rating |
|---|---|---|---|
| APC UPS Battery Backup & Surge Protector | $100-$130 | 600VA, Surge Protection | 4.5/5 |
| Tripp Lite UPS System 600VA | $95-$125 | Voltage Regulation | 4.4/5 |
| APC BE600M1 UPS | $90-$120 | Compact, Reliable | 4.3/5 |
| CyberPower CP600LCD | $105-$135 | LCD Display, AVR | 4.4/5 |
| Eaton 3S UPS | $80-$110 | Space-saving Design | 4.2/5 |
| APC Back-UPS BE850M2 | $120-$150 | Higher Capacity | 4.5/5 |
| CyberPower EC850LCD | $130-$160 | Powerful, LCD | 4.4/5 |
| Vertiv Liebert PSA5 | $70-$100 | Lightweight, Basic | 4.0/5 |
| APC BR1500G | $300-$350 | High Capacity, Long Runtime | 4.6/5 |
| APC UPS Pro BR1500MS2 | $280-$400 | Advanced Management | 4.7/5 |
Buying Guide
What to Look For
Choose a backup with sufficient capacity (VA/Wattage) to support your modem and router. Look for features like surge protection, automatic voltage regulation (AVR), and runtime that matches your typical outage duration. Compact size and easy installation can also enhance usability.
Common Mistakes to Avoid
Overestimating your power needs can lead to unnecessary expense, while underestimating may result in insufficient backup time. Ignoring surge protection or not checking compatibility with your devices can compromise your setup. Also, avoid models with poor reviews or limited runtime.
Additional Tips
Regularly test your backup system, keep it in a cool, ventilated area, and replace batteries as recommended to ensure optimal performance when needed.
FAQ
How long should a battery backup last for my WiFi modem and router?
Typically, 15-30 minutes of backup time suffices for most users to save work or switch to backup power sources during outages.
Can I connect other devices to the same backup system?
Yes, but ensure the total power draw of all connected devices does not exceed the UPS’s capacity to avoid overload and reduce backup runtime.
Conclusion
Choosing the right battery backup for your WiFi modem and router ensures uninterrupted connectivity during power outages. Prioritize capacity, features, and reliability to find the best fit for your home or office setup. Investing in a quality UPS safeguards your internet and connected devices effectively.