A camera outage can leave a blind spot exactly when reliable monitoring matters most. The right compact backup power supply can keep a security camera, router, or modem running through brief interruptions and power fluctuations.
These 10 options range from small DC and USB units to larger standby UPS systems. Compare output compatibility, runtime, surge protection, and installation needs before choosing the best fit for your camera setup.
Best 10 Compact Camera Backup Power Supplies Picks for 2026
Flexible DC Backup
- 5V/9V/12V, USB, and PoE outputs
- Includes nine DC connectors
- 36W capacity with surge protection
Best For: Security cameras, routers, and other low-voltage DC devices
Entry-Level AC Protection
- 425VA/260W standby UPS
- Four battery-backup outlets
- Three-year battery warranty
Best For: Small AC-powered camera and networking setups
Portable DC Solution
- 38.48Wh backup capacity
- 5V/9V/12V DC, USB-A, and PoE outputs
- Slim 500g portable design
Best For: Compatible portable camera and networking equipment
High-Capacity AC Backup
- 900VA/500W standby capacity
- Six battery-backed outlets
- 12 total outlets with surge protection
Best For: Larger multi-device AC camera and networking systems
Multi-Outlet Power Station
- 850VA/510W capacity
- 12 total outlets
- LCD monitoring and ECO mode
Best For: AC-powered camera systems and multi-device setups
Outdoor Camera Backup
- 12V/2A stabilized output
- 6000mAh built-in battery
- 2.1mm DC jack for outdoor cameras
Best For: Compatible 12V outdoor security cameras
Most Versatile
CHINTE Mini UPS Battery Backup
- 16000mAh LiFePO4 battery and up to 36W output
- DC, USB-A, USB-C, and PoE output options
- Multiple built-in safety protections
Best For: Flexible backup power for compatible cameras and low-voltage devices
Most Compact
- Lightweight design at about 121 g
- 5V USB output rated up to 2A
- Automatic battery switchover during outages
Best For: Small USB-powered cameras and other 5V devices
Best for 12V Cameras
- 12V/2A output for compatible devices
- 6000mAh capacity with up to 8 hours stated runtime
- 5.5mm x 2.1mm barrel interface
Best For: Compatible 12V outdoor cameras and security devices
Flexible DC Backup – 10400mAh Mini UPS
For compact camera backup power supplies and other low-voltage equipment, this mini UPS offers several DC output options in a small enclosure. Its 10400mAh battery, included connectors, and automatic low-voltage backup switching make it especially useful for security cameras and networking gear.
Best For: Users needing flexible 5V, 9V, 12V, USB, or compatible PoE backup for cameras, routers, and similar devices.
Pros:
- 10400mAh rechargeable battery with five LED charge indicators
- Includes nine DC connectors for broader device compatibility
- Supports DC, USB, and 15V/24V PoE outputs
- Includes surge protection and multiple safety protections
Cons:
- RJ45 port is limited to 100Mbps
- Requires checking device voltage, polarity, and current compatibility
- Maximum output is 36 watts
This is a versatile choice when a camera setup uses DC power rather than a standard wall plug. Confirm the required connector and output specifications before connecting equipment.
Entry-Level AC Protection – CyberPower ST425 UPS
This compact CyberPower unit is a practical option for compact camera backup power supplies when your camera system uses a standard AC adapter. It combines battery backup and surge protection across dedicated outlets, while its 425VA/260W capacity suits smaller home-office and networking setups.
Best For: Small camera, router, modem, and home-office systems that connect through standard NEMA outlets.
Pros:
- Four battery-backup and surge-protected outlets
- Four additional surge-protected outlets
- Compact 425VA/260W design with transformer-spaced outlets
- Includes a three-year warranty covering the battery
Cons:
- Lower 260W capacity than the larger CyberPower option
- Provides simulated sine wave output
- Short listed runtime of one minute
The ST425 works best as a basic AC backup for modest camera or networking loads. Its outlet layout is useful, but buyers should compare the connected equipment’s total wattage with the UPS capacity.
Portable DC Solution – PECRON D39 Small UPS
The PECRON D39 is a compact option among compact camera backup power supplies, with DC5521, USB-A, and PoE outputs for compatible equipment. Its 38.48Wh battery is designed to maintain power automatically during an outage, while the slim form factor fits beside networking or camera hardware.
Best For: Portable backup for compatible Wi-Fi routers, modems, security cameras, LED displays, and other small digital devices.
Pros:
- Offers 5V, 9V, 12V DC, USB-A, and PoE outputs
- 38.48Wh capacity with automatic outage support
- Wide 80-260V AC input range
- Six protection features include overcharge, thermal, and short-circuit protection
Cons:
- Output compatibility must be verified before use
- Smaller capacity than the 10400mAh mini UPS listed above
- Runtime depends on the connected device load
With multiple low-voltage outputs and a portable design, the D39 is well suited to camera and networking equipment that matches its specifications. Its built-in protections add reassurance for unattended backup use.
High-Capacity AC Backup – CyberPower ST900U UPS
For larger camera installations using standard AC adapters, the CyberPower ST900U provides more headroom than smaller compact camera backup power supplies. Its 900VA/500W capacity, six battery-backed outlets, and slim profile make it suitable for multi-device home-office, entertainment, and networking setups.
Best For: Larger AC-powered camera, router, modem, and home-office systems requiring several protected connections.
Pros:
- 900VA/500W standby capacity
- Six battery-backup and surge-protected outlets plus six surge-only outlets
- Four widely spaced outlets accommodate larger plugs
- Includes USB charging ports, management software, and a three-year battery warranty
Cons:
- Heavier and larger than the smaller UPS options
- Uses simulated sine wave output
- Designed for 120V AC equipment rather than direct low-voltage DC connections
The ST900U is the strongest fit here for multiple AC-powered devices or higher combined loads. Choose it over a DC mini UPS when outlet count and 500W capacity matter more than portability.
Compact DC Backup – Shanqiu Mini UPS
For compact camera backup power supplies and other low-power equipment, the Shanqiu Mini UPS offers several DC output options in a small aluminum-alloy enclosure. Its 37Wh built-in battery and standard USB port make it useful for supporting compatible cameras or accessories during short outages, provided the voltage and connector match.
Best For: Compact security-camera setups, routers, and other compatible 5V, 9V, or 12V devices.
Pros:
- Supports 5V, 9V, and 12V DC outputs at up to 2A.
- Built-in 10,000mAh/37Wh battery with USB power-bank functionality.
- Compact aluminum-alloy housing with short-circuit, overcharge, over-discharge, temperature, and voltage protection.
- Rated for up to 60W maximum input/output capacity as specified.
Cons:
- No standalone lithium batteries are included or sold with the product.
- Camera compatibility depends on matching voltage, amperage, and connector requirements.
- Listed runtime is approximately 37 minutes.
This is the most versatile of the three options for small DC equipment, but verify your camera’s power specifications before purchasing. Its multiple outputs and USB port add flexibility for a compact backup setup.
Multi-Outlet Power Station – CyberPower EC850LCD
The CyberPower EC850LCD is a compact camera backup power supply option when your setup uses a standard AC adapter and you also need room for several other devices. It provides six battery-backed outlets, six additional surge-protected outlets, and an LCD panel for checking battery and power conditions.
Best For: Indoor camera systems and multi-device workstations that use standard North American AC plugs.
Pros:
- Six battery-backup and surge-protected outlets, plus six surge-only outlets.
- 850VA/510W capacity supports larger AC-powered setups than a small DC UPS.
- LCD panel displays battery and power information.
- Includes ECO-controlled outlets, a three-year warranty including the battery, and a connected-equipment guarantee.
Cons:
- Its listed runtime is approximately two minutes.
- At 7.7 pounds and 12.2 inches wide, it is less portable than mini UPS units.
- Uses sealed lead-acid batteries and standard NEMA outlets rather than dedicated camera DC outputs.
This model makes sense for an AC-powered camera setup where outlet count, surge protection, and status monitoring matter most. It is less suitable for portable or direct-DC camera applications.
Outdoor Camera Backup – Lioaeust 12V Mini UPS
The Lioaeust 12V mini UPS is designed around 12V outdoor cameras and similar equipment using a 5.5mm outer-diameter, 2.1mm inner-diameter DC jack. As a compact camera backup power supply, it provides a regulated 12V/2A output and switches to its built-in 6000mAh battery when utility power fails.
Best For: Compatible 12V outdoor security cameras requiring a 2.1mm DC power connection.
Pros:
- Provides stabilized 12V/2A output for compatible equipment.
- Built-in 6000mAh lithium battery automatically supplies power during outages.
- Supports 110V-240V input and includes over-current, over-voltage, overcharge, and over-discharge protection.
- Compact, portable design intended for outdoor-camera use.
Cons:
- Only provides a 12V/2A output, limiting compatibility with other camera voltages.
- Requires a matching 5.5mm/2.1mm DC connection.
- Its 24W output rating and 6000mAh capacity are lower than the larger UPS options listed.
This is a focused choice for a compatible 12V outdoor camera rather than a general-purpose backup battery. Confirm the camera’s plug dimensions, voltage, and current draw before ordering.
Most Versatile – CHINTE Mini UPS Battery Backup
For shoppers comparing compact camera backup power supplies, the CHINTE Mini UPS stands out for its broad output selection and high stated capacity. It supports 5V, 9V, and 12V DC outputs, USB-A, USB-C, and PoE, making it suitable for compatible cameras and other small electronics. Confirm your device’s voltage, current, connector size, and polarity before purchase.
Best For: Users who need flexible backup power for compatible security cameras, routers, modems, or other low-voltage equipment.
Pros:
- 16000mAh LiFePO4 battery with up to 36W output.
- Multiple DC, USB, and PoE output options.
- Includes short-circuit, overcharge, over-discharge, temperature, over-voltage, and over-current protection.
- Compact design with LED capacity and status indicators.
Cons:
- Connected equipment must stay within the 36W maximum.
- Compatibility depends on matching voltage, current, connector size, and polarity.
- Designed for indoor placement.
With its unusually wide compatibility range and 12-month warranty, this is the most adaptable option here. Its extra outputs are useful if your camera setup includes networking equipment, but careful specifications matching is essential.
Most Compact – fosa 2600mAh USB Mini UPS
If you want simple compact camera backup power supplies for a USB-powered device, this fosa mini UPS uses a straightforward plug-in design. Its 2600mAh battery provides backup power for compatible 5V devices, with runtime depending on the connected equipment’s usage.
Best For: Small USB-powered cameras, webcams, routers, LED lighting, and other devices requiring 5V output at up to 2A.
Pros:
- Compact, lightweight design weighing about 121 g.
- Supports compatible 5V devices with output up to 2A.
- Automatically switches to battery power during an outage.
- Simple wall-outlet and device connection process.
Cons:
- Only provides one USB output.
- 2600mAh capacity is smaller than the other listed options.
- Limited to 5V output and devices within the stated power rating.
This is a practical pick when portability and uncomplicated operation matter more than extended capacity or multiple connectors. Check that your camera uses USB power and remains within the 2A output specification.
Best for 12V Cameras – 12V-2A Mini UPS Backup
For 12V equipment, this compact camera backup power supply pairs a 6000mAh battery with a dedicated 12V/2A output. It is designed for compatible outdoor cameras and other 12V devices, with automatic battery switchover and a 5.5mm outer/2.1mm inner barrel interface.
Best For: Compatible 12V outdoor cameras and security devices using a matching 5.5mm x 2.1mm DC barrel connector.
Pros:
- Dedicated 12V/2A output for compatible equipment.
- 6000mAh battery with a stated runtime of up to 8 hours for an ordinary device.
- Wide 110V-240V input range.
- Includes over-current, over-voltage, over-charge, and over-discharge protection.
Cons:
- Not suitable for devices requiring a different voltage or connector.
- Runtime varies according to device usage.
- Provides one output power level rather than the broader output selection of the CHINTE model.
This model is a focused solution for 12V camera systems rather than a general-purpose multi-output UPS. Its barrel connector and voltage rating should make compatibility checking relatively straightforward, provided your camera matches both specifications.
How We Picked These Compact Camera Backup Power Supplies
We focused on compact UPS and battery-backup devices suited to security cameras, network equipment, and related low-voltage electronics. The selection includes DC-output models, USB-compatible options, and conventional standby UPS units with AC outlets. We considered battery capacity, output flexibility, surge protection, portability, expected use case, and whether each design is practical for a camera installation.
Because camera systems vary widely, compatibility takes priority over capacity alone. A high-capacity UPS is not useful if it cannot provide the correct voltage, connector, polarity, or output type.
Quick Comparison
| Type | Best For | Main Advantage | Watch For |
|---|---|---|---|
| Mini DC UPS | Routers, modems, and low-voltage cameras | Compact, efficient direct output | Limited runtime and connector compatibility |
| USB mini UPS | USB-powered cameras and accessories | Simple, portable setup | May not support 12V equipment |
| Standby AC UPS | Camera hubs, NVRs, and networking gear | Standard AC outlets and surge protection | Larger footprint and conversion losses |
| PoE-capable DC UPS | PoE cameras and network devices | Can support specialized installations | Requires careful PoE and voltage matching |
Key Buying Factors for Compact Camera Backup Power Supplies
Voltage, Current, and Connector Fit
Check the camera or adapter label for required voltage and maximum current. A 12V camera generally needs a regulated 12V output, while a USB device may require 5V. Confirm connector size, polarity, and included cables before ordering. Do not assume that a physically fitting plug is electrically safe.
Battery Capacity and Real Runtime
Capacity is commonly listed in milliamp-hours or watt-hours. Watt-hours make comparisons easier across different voltages, but actual runtime is reduced by conversion losses, battery age, and the camera’s changing power draw. Infrared night vision, heaters, microphones, Wi-Fi radios, and pan-tilt motors can increase consumption.
Output Type and System Layout
Choose DC or USB output when the camera uses a low-voltage adapter and you want an efficient, compact installation. Choose an AC UPS when you need to protect an NVR, router, monitor, or several adapters at once. For PoE systems, verify that the UPS supports the required PoE standard and power budget.
Surge Protection and Placement
Surge protection helps protect connected equipment from voltage spikes, but it does not replace proper grounding or whole-home protection. Place the UPS in a ventilated, dry location close enough to the camera equipment for the supplied cables, and avoid overloading its rated output.
Who Should Buy Which Compact Camera Backup Power Supplies?
Choose a small USB model for a single USB-powered outdoor camera or simple portable setup. A DC mini UPS is usually the better choice for one router, modem, or 5V/9V/12V security camera because it avoids unnecessary AC conversion. Select a higher-capacity DC or PoE model when several network devices or a PoE camera system need short-term continuity.
For an NVR, router, camera hub, or multiple AC adapters, a standby UPS with standard outlets is more versatile. Larger CyberPower-style units are appropriate when surge protection, outlet count, and system-level backup matter more than minimum size. Whichever model you choose, verify every device’s voltage, wattage, connector, and expected runtime before installation.