Best Battery Backup for Modem and Security Camera Systems

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A modem, router, and security camera hub do not use much power, but losing them during an outage can be frustrating. A small UPS or portable power station can keep the network online.

This article focuses on one specific problem: keeping internet and basic security cameras running during short outages. Use it as a practical checklist before you replace parts, buy accessories, or call for help.

What To Check First

Start with the simple checks. Many home maintenance problems come from compatibility, setup, clogged parts, worn seals, or undersized equipment rather than total product failure.

Add up the watts for modem, router, camera hub, and PoE switch if used.
Choose a UPS for seamless short outages.
Choose a power station for longer runtime.
Test the setup before you need it.

Bestseller No. 1

APC UPS 600VA/330W Battery Backup for Computer, Router, NAS, BE600M1

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)

SaleBestseller No. 2

CyberPower ST425 Standby UPS Battery Backup and Surge Protector

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

SaleBestseller No. 3

APC UPS 425VA/225W UPS Battery Backup for Router, Small Electronics, BE425M

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

Bestseller No. 4

APC Battery Backup 650VA/390W Uninterruptible Power Supply for PC, BE650G1

KEEPS DEVICES RUNNING DURING POWER OUTAGES: Reliable 550VA / 330W 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 22 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 APCRBC110 (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

SaleBestseller No. 5

CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector, 1500VA/1000W, 12 Outlets, AVR, Mini Tower, UL Certified

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

SaleBestseller No. 6

CyberPower EC850LCD Ecologic UPS Battery Backup and Surge Protector

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)

SaleBestseller No. 7

CyberPower ST625U Standby UPS Battery Backup and Surge Protector

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

SaleBestseller No. 8

GOLDENMATE 1000VA/800W Lithium UPS Battery Backup & Surge Protector, White

[LiFePO4 Battery, Ultra-long Endurance]: This lithium UPS is equipped with a state-of-the-art Lithium Iron Phosphate Battery Pack, delivering a lifespan of over 10 years and more than 5000 charge cycles. Compared to traditional lead-acid battery solutions, it offers a total cost of ownership (TCO) that is more than 40% lower. The advanced battery technology not only ensures long-lasting performance but also providing a cost-effective and reliable power backup solution
[Multi-Outlets & Efficient Cooling System]: Featuring eight NEMA 5-15P outlets with both surge protection and battery backup, this plug-and-play device comes with an AC power cord. It also includes a built-in Battery Management System (BMS) and PP45 terminals for safe and reliable connections.The advanced BMS works efficiently with cooling system.The newly updated cooling fan operates at a noise level below 50 dB. Note: The high-power cooling fan will activate when the BMS detects heavy battery usage
[Trustworthy Protections]: The 1000VA/800W Pure Sine Wave Battery Backup Uninterruptible Power Supply (UPS) System continuously monitors battery voltage, ensuring high efficiency and reliability. It effectively addresses common electrical issues like power outages, high/low voltage, voltage drops, shocks, high voltage pulses, voltage fluctuations, and surges. This system is perfect for supporting computers, workstations, network devices, and telecom equipment
[Intelligent LCD Panel]: This UPS provides real-time, detailed information on battery and power conditions, ensuring optimal performance and reliability. It features an automatic safety mechanism that halts charging and discharging if limits are exceeded, preventing potential damage. This not only protects the system from overloading and overheating but also significantly extends the UPS's lifespan, ensuring long-term, dependable operation
[Professional UPS with Certifications]: Our UPS battery backup has successfully passed rigorous safety certifications, ensuring compliance with the highest industry standards. It incorporates the leading chip technology in the industry, providing double anomaly protection for enhanced safety and reliability. Additionally, the system offers a maintenance-free operation for up to 10 years, guaranteeing peace of mind and long-term dependability

Bestseller No. 9

CyberPower SL700U Standby UPS Battery Backup and Surge Protector

700VA/370W Slim Profile 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: Five battery backup & surge protected outlets, Three surge protected outlets; two outlets are widely spaced to accommodate larger plugs; INPUT: NEMA 5-15P right angle, 45 degree offset plug with five foot power cord
2 USB CHARGING PORTS: Share 2.4 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 THE BATTERY; $100,000 Connected Equipment Guarantee; FREE PowerPanel Management Software (Download); UL SAFETY CERTIFIED: Product has been tested in a UL certified lab and listed with UL as meeting or exceeding safety standards

Bestseller No. 10

APC UPS 1500VA/900W, LCD, AVR, UPS Battery Backup & Surge Protector BX1500M

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 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, plus 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

What To Buy If You Need A Fix

For short outages, a UPS battery backup is simple and automatic. For longer outages, a small portable power station can run network gear for many hours if capacity is sized correctly.

Before ordering, confirm your model number, measurements, fitting size, voltage, runtime needs, or room size. Product pages can look similar, but one small mismatch can create leaks, tripped breakers, poor performance, or wasted money.

How To Compare Options

Compare the product by the job it needs to perform. For pressure washer parts, check PSI, GPM, fitting type, nozzle angle, detergent compatibility, and hose length. For home energy, water, humidity, or backup-power products, check capacity, installation requirements, maintenance, and safety ratings.

Recent reviews from people using the product in the same situation are more useful than broad star ratings. Look for comments that mention your exact brand, room type, circuit, surface, or appliance.

Mistakes To Avoid

Do not forget the modem if backing up the router.
Do not overload a small UPS with monitors or desktop PCs.
Do not hide the battery where heat cannot escape.

When To Stop And Get Help

If the issue involves electrical wiring, standing water, roof cuts, mold, structural damage, or equipment that repeatedly trips safety devices, slow down and get qualified help. A low-cost product is not a bargain if it creates a safety problem.

Bottom Line

For battery backup for modem and security camera, the right choice is the product or fix that matches the exact symptom and setup. Start with compatibility, choose practical specifications, and avoid buying more power or complexity than the job requires.