CyberPower ST425 Standby UPS Battery Backup and Surge Protector
4.4Editor score
Compact Design
LED Status Indicators
Surge Protection Included
In this guide
Power outages can disrupt your workflow and damage sensitive electronics. A reliable Cyberpower UPS battery ensures your devices stay online during interruptions. This guide reviews top models with varying capacity and outlet types for your needs.
We analyzed performance data, user feedback, and technical specifications to rank these units. Each product offers unique features like sine wave output or LCD displays. Our list covers everything from basic home office units to advanced server protection systems.
Every pick highlights key strengths and potential limitations for informed decisions. Prices and availability change frequently so verify details before buying. Use this resource to find the ideal backup solution for your specific power requirements today.
Top 3 Picks for Best Cyberpower UPS Battery
CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector
4.5Editor score
Pure Sine Wave Output
LCD Power Status Display
Multiple USB Charging Ports
CyberPower CPS1500AVR Intelligent LCD UPS Battery Backup
4.5Editor score
Extended Power Cord
Server Grade Protection
Remote Management Ready
Top 10 Best Cyberpower UPS Battery in 2026 Compared
This table compares key specifications across all ten ranked Cyberpower UPS battery units. Review wattage, outlet counts, and protection types to find the right fit for your setup.
ProductsSpecificationsEditor scorePrice
Editor's Choice
CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector
1500VA/1000W Output
6 Battery Backup Outlets
Pure Sine Wave
LCD Panel Display
4.5Editor score
Editor's Choice
CyberPower CP1500AVRLCD3 Intelligent LCD UPS Battery Backup
1500VA/900W Output
6 Battery Backup Outlets
Simulated Sine Wave
Color LCD Panel
4.5Editor score
Best Premium
CyberPower EC850LCD Ecologic UPS Battery Backup and Surge Protector
850VA Output
6 Battery Backup Outlets
ECO Mode Supported
LCD Display
4.4Editor score
CyberPower ST425 Standby UPS Battery Backup and Surge Protector
425VA/260W Output
4 Battery Backup Outlets
LED Status Lights
Compact Design
4.4Editor score
CyberPower RB1290 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah
12V 9Ah Capacity
User Installable
Sealed Lead Acid
18 Month Warranty
4.6Editor score
CyberPower RB1290X2 UPS Replacement Battery Cartridge
Two Batteries Included
12V 9Ah Each
User Installable
18 Month Warranty
4.6Editor score
CyberPower AVRG900LCD Intelligent LCD UPS Battery Backup
900VA/480W Output
6 Battery Backup Outlets
Data Line Protection
LCD Panel
4.6Editor score
CyberPower RB1280X2B UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah
Two Batteries Included
12V 9Ah Each
User Installable
18 Month Warranty
4.6Editor score
CyberPower RB12170X2A UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/17Ah
Two Batteries Included
12V 17Ah Each
User Installable
18 Month Warranty
4.8Editor score
CyberPower CPS1500AVR Intelligent LCD UPS Battery Backup
1500VA/900W Output
8 Outlets
Ten Foot Cord
Server Grade
4.5Editor score
1. CyberPower CP1500PFCLCD – Best Overall Cyberpower UPS Battery
CyberPower CP1500PFCLCD PFC Sinewave UPS Battery Backup and Surge Protector
1500VA/1000W Output
12 Outlets
Pure Sine Wave
Color LCD Display
This top ranked unit delivers robust protection with a 1500VA capacity. It features a pure sine wave output suitable for sensitive electronics. The color LCD panel provides clear status updates for users.
Pros
- Pure sine wave output
- High wattage capacity
- LCD power monitoring
- USB charging ports
- Automatic voltage regulation
Cons
- Larger footprint
- Higher price
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Key strengths include twelve outlets split between backup and surge protection. Automatic voltage regulation corrects minor fluctuations without using battery power. Two USB ports allow convenient charging for mobile devices.
Trade-offs involve a larger physical size compared to basic models. The price point is higher but justified by performance. It balances power quality with connectivity for demanding setups.
Ideal for workstations or home offices needing reliable backup. The pure sine wave protects active PFC power supplies well. Choose this for comprehensive protection and monitoring capabilities.
Pure Sine Wave Output
Ensures compatibility with sensitive electronics and active PFC supplies.
LCD Panel Clarity
Tilting color display offers detailed power and battery information.
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2. CyberPower CP1500AVRLCD3 – High Capacity Backup
CyberPower CP1500AVRLCD3 Intelligent LCD UPS Battery Backup
1500VA/900W Output
12 Outlets
Simulated Sine Wave
Color LCD Panel
This model provides strong backup power with a 1500VA rating. It uses simulated sine wave technology for standard devices. The color LCD panel keeps you informed on system status.
Pros
- High VA rating
- Color display
- USB charging
- Automatic voltage regulation
Cons
- Simulated sine wave
- Heavier unit
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It offers twelve outlets including battery and surge protection options. USB ports support quick charging for phones and tablets. AVR helps save battery life by fixing minor power issues.
While the sine wave is simulated it works well for most equipment. The unit is robust and may require dedicated space. It is a solid choice for networking gear.
Buyers should consider it for workstations needing stable power. It balances features and performance effectively. The display adds value for monitoring critical loads.
Intelligent LCD
Provides immediate alerts for potential equipment issues.
Surge Protection
Safeguards against spikes across multiple outlets.
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3. CyberPower EC850LCD – Eco Friendly Option
CyberPower EC850LCD Ecologic UPS Battery Backup and Surge Protector
850VA Output
12 Outlets
ECO Mode
LCD Panel
This unit focuses on energy efficiency with its ECO mode feature. It reduces power usage by shutting off unused peripheral outlets. The LCD panel shows battery status clearly.
Pros
- ECO mode
- Energy efficient
- LCD display
- Affordable
Cons
- Lower wattage
- Basic features
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It includes twelve outlets split between backup and surge protection. The ECO mode helps lower energy costs by managing power use. It is compact and fits well in home offices.
Trade-offs include lower wattage compared to larger models. It is best for light loads like routers and monitors. The design prioritizes efficiency over raw power.
Choose this for environmentally conscious users. It balances cost and functionality for standard desktop setups. Ideal for extending battery runtime during minor outages.
ECO Mode
Automatically turns off power to peripherals when computer sleeps.
Energy Efficiency
Reduces overall consumption to lower energy bills.
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4. CyberPower ST425 – Best Budget Cyberpower UPS Battery
CyberPower ST425 Standby UPS Battery Backup and Surge Protector
425VA/260W Output
8 Outlets
LED Indicators
Compact
This unit offers entry level protection for basic home office needs. It features simulated sine wave output for standard electronics. LED lights indicate power and wiring status clearly.
Pros
- Low cost
- Compact
- LED lights
- Surge protection
Cons
- Lower capacity
- Basic design
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With eight outlets it provides ample space for small setups. The compact design saves desk space effectively. It is UL safety certified for reliable performance.
Trade-offs include lower capacity and fewer advanced features. It is best for routers or gaming consoles. The price point makes it accessible for most budgets.
Ideal for users needing simple surge and battery backup. It delivers essential protection without complexity. Choose this for compact and affordable power safety.
Compact Design
Saves space while delivering essential protection.
GreenPower Efficiency
Reduces power consumption for eco friendly operation.
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5. CyberPower RB1290 – Reliable Battery Replacement
CyberPower RB1290 UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah
12V 9Ah
User Installable
Sealed Lead Acid
18 Month Warranty
This cartridge restores life to compatible UPS units efficiently. It uses sealed lead acid technology for consistent power. Installation is user friendly without tools required.
Pros
- Easy install
- Maintenance free
- Compatible
- Warranty
Cons
- Replacement only
- Capacity varies
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It fits specific CyberPower models like CP1000AVRLCD. Maintenance free fluid ensures it is hassle free. The reusable packaging supports battery recycling programs.
Trade-offs include it is a replacement not a full system. Verify compatibility with your existing unit before purchase. It extends the life of current backup systems.
Buyers should use this when old batteries fail. It is cost effective compared to new units. Choose for extending UPS functionality simply and quickly.
User Installable
Pre-assembled cartridge allows quick and convenient replacement.
Recycling Friendly
Reusable packaging helps deliver expired batteries safely.
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6. CyberPower RB1290X2 – Dual Battery Solution
CyberPower RB1290X2 UPS Replacement Battery Cartridge
Two Batteries
12V 9Ah Each
User Installable
Warranty Included
This pack contains two 12V 9Ah batteries for larger units. It restores power to models with depleted internal batteries. Installation is straightforward with pre-assembled cartridges.
Pros
- Dual pack
- Sealed lead acid
- High capacity
- Warranty
Cons
- Specific compatibility
- Price higher
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Compatible with models like BRG1350AVRLCD and CP1500AVRLCD. Maintenance free design simplifies long term usage. The packaging supports recycling efforts effectively.
Trade-offs include higher cost due to dual batteries. Ensure your unit requires two batteries before buying. It maximizes runtime for demanding workloads.
Ideal for restoring high capacity UPS systems. It offers reliability and ease of use. Choose this for extended runtime after battery replacement.
Restores Life
Fixes weak or depleted batteries in supported systems.
Dual Pack
Includes two cartridges for larger battery needs.
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7. CyberPower AVRG900LCD – Network Friendly
CyberPower AVRG900LCD Intelligent LCD UPS Battery Backup
900VA/480W
12 Outlets
Data Line Protection
LCD Display
This unit protects both power and data lines effectively. It features simulated sine wave output for general electronics. The intelligent LCD panel offers detailed system status.
Pros
- Data protection
- AVR included
- LCD
- Warranty
Cons
- Simulated sine wave
- Heavier
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Twelve outlets allow flexible connection options for routers. Data line protection prevents surges from phone lines. Automatic voltage regulation helps maintain stability.
Trade-offs involve it being heavier than standard models. It is built for robust performance and longevity. The data protection adds value for networking gear.
Choose this for home offices with broadband routers. It ensures connectivity remains stable during outages. Ideal for users needing both power and line safety.
Data Line Protection
Prevents surges from traveling through telephone lines.
Intelligent LCD
Displays immediate detailed information on power conditions.
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8. CyberPower RB1280X2B – Model Specific Fit
CyberPower RB1280X2B UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/9Ah
Two Batteries
12V 9Ah Each
User Installable
Compatible Only
This cartridge restores power to specific CP1500PFCLCD units. It comes with two sealed lead acid batteries. Installation is user friendly and requires no tools.
Pros
- Precise fit
- Maintenance free
- Easy install
- Warranty
Cons
- Limited models
- Specific serial numbers
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Compatible with specific serial numbers like CQC or CR9. Maintenance free fluid ensures it requires no upkeep. Packaging supports recycling to protect the environment.
Trade-offs include it is only for specific models. Check serial numbers before purchasing to ensure fit. It extends the life of your existing unit.
Ideal for CP1500PFCLCD owners needing batteries. It simplifies replacement for your setup. Choose this for reliable restoration of backup power.
Compatible Models
Works with specific CP1500PFCLCD units by serial number.
Maintenance Free
Never requires replacement of battery fluid.
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9. CyberPower RB12170X2A – Extended Capacity
CyberPower RB12170X2A UPS Replacement Battery Cartridge, Maintenance-Free, User Installable, 12V/17Ah
Two Batteries
12V 17Ah Each
User Installable
Warranty
This unit provides high capacity with two 17Ah batteries. It restores life to PR1500LCD series units effectively. Installation is straightforward for average users.
Pros
- High capacity
- 17Ah batteries
- Maintenance free
- Easy install
Cons
- Premium price
- Specific models
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The higher amp hour rating extends backup duration. It is maintenance free and requires no upkeep. Packaging is designed for proper recycling of batteries.
Trade-offs include a higher price point due to capacity. It is for users needing long backup times. Verify your model is compatible before ordering.
Choose this for critical systems needing extended runtime. It is an upgrade over standard replacement packs. Ideal for maximizing protection during outages.
High Capacity
Includes two 17Ah batteries for extended run time.
Restores Life
Fixes weak or depleted internal battery systems.
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10. CyberPower CPS1500AVR – Best Premium Cyberpower UPS Battery
CyberPower CPS1500AVR Intelligent LCD UPS Battery Backup
1500VA/900W
8 Outlets
10 Foot Cord
Server Grade
This unit targets department servers and network installations. It features a ten foot cord for flexible placement. LED lights indicate battery and load status clearly.
Pros
- Long cord
- High output
- LED indicators
- Server protection
Cons
- Expensive
- No USB ports
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With high output it protects workgroup equipment effectively. Automatic voltage regulation corrects fluctuations without using battery. It is UL certified for safety compliance.
Trade-offs include no USB ports for mobile charging. It is priced higher than standard home units. The focus is on server grade reliability.
Ideal for department installations needing stable power. The long cord simplifies setup in server racks. Choose this for professional grade backup protection.
Server Protection
Protects department workgroup servers and telecom.
10 Foot Cord
Right angle offset plug with extended cord.
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Buying Guide – How to Choose the Best Cyberpower UPS Battery
Selecting the right UPS requires understanding your power needs and device compatibility. This guide breaks down the key factors to consider.
VA and Wattage Capacity
Look at the VA and wattage ratings to ensure the unit can handle your devices. Higher numbers provide longer backup times for more equipment.
Ensure the wattage covers the total power draw of your connected gear.
Sine Wave Output Type
Pure sine wave is best for active PFC power supplies like modern computers. Simulated sine wave works for most standard electronics and routers.
Choose pure sine wave for sensitive hardware to avoid compatibility issues.
Outlet Count and Type
Count the number of battery backup and surge only outlets you need. Ensure the plug types match your devices and cables easily.
Check for USB ports if you need to charge mobile devices directly.
Automatic Voltage Regulation
AVR helps correct minor power fluctuations without draining the battery. This feature extends battery life and provides stable power during brownouts.
Prioritize models with AVR if your area has unstable power grids.
Display and Monitoring
LCD panels provide detailed status on battery life and power conditions. LED indicators are simpler but useful for quick checks on the unit.
Select an interface that helps you monitor power health easily.
Battery Replacement and Warranty
Ensure replacement batteries are easy to install and available for your model. Check the warranty coverage for the battery and connected equipment.
Look for user-installable cartridges to simplify maintenance over time.
Physical Dimensions
Measure the available space under your desk or in your rack. Larger units offer more power but may not fit in tight areas.
Consider the weight if you need to move the unit regularly.
Price and Value
Balance cost against the features needed for your setup. Basic units are affordable but premium ones offer better protection and runtime.
Invest in quality to prevent hardware damage during outages.
How to Use and Care for Your Cyberpower UPS Battery
Plug the unit directly into a wall outlet and connect devices to the battery backup outlets. Allow the battery to charge fully before the first use to ensure reliability.
Regularly check the LCD panel for status updates and error messages. Keep the unit in a cool, dry place to avoid overheating and extend its lifespan.
Replace the internal batteries every three to five years depending on usage. Use authorized replacement cartridges to maintain safety and warranty coverage.
Frequently Asked Questions
How long does a Cyberpower UPS battery last during an outage?
Runtime depends on the load connected and battery health. Basic models might offer minutes while high capacity ones provide longer time for safe shutdown.
Can I replace the battery myself?
Yes, many models support user-installable cartridges. Follow the manual instructions to ensure safe removal and installation of the new battery.
What is the difference between pure and simulated sine wave?
Pure sine wave mimics utility power perfectly for sensitive electronics. Simulated is more affordable but may not work with active PFC power supplies.
Do these units protect against surges?
All units include surge protection on the outlets. Some also offer data line protection for phone or network cables connected to the system.
How often should I test my UPS?
It is recommended to test your unit every few months. Check the status lights or LCD to confirm it is functioning correctly during a test.
What should I look for in a replacement battery?
Ensure it matches the voltage and amp-hour rating. Check compatibility with your specific model to guarantee proper fit and performance.
Can I connect a printer to a UPS?
Surge only outlets can handle printers. Battery backup outlets are best for computers to avoid unnecessary battery drain during printing.
Is AVR necessary for home use?
AVR adds value by stabilizing power without using the battery. It is useful in areas with frequent power fluctuations to extend battery life.
Final Thoughts on Choosing the Best Cyberpower UPS Battery
This guide ranked the top ten units based on capacity, features, and performance. The top picks include the CP1500PFCLCD for pure sine wave and the ST425 for budget needs.
Prioritize pure sine wave for sensitive electronics and ensure the wattage meets your total load. Consider AVR and display features for better management.
Always verify compatibility for replacements and check current prices before purchasing. These models provide reliable backup to protect your data and hardware.