The Best Uninterruptible Power Supply Battery
Protect your electronics from outages with our top-rated UPS picks. We evaluated capacity, runtime, surge protection, and battery type to find the best models for home offices, gaming rigs, and networks.
By Gordon Matthews
Updated September 11, 2026
Power outages and voltage fluctuations can damage sensitive electronics, from desktop PCs to networking equipment. An uninterruptible power supply battery provides seamless backup power, giving you time to save work and shut down safely.
In this guide, we’ve evaluated the top UPS models based on expert consensus, verified buyer feedback, and published specifications to help you choose the right protection for your setup. Below are our top picks.
Whether you’re protecting a home office, gaming rig, or network closet, the right UPS ensures your gear stays safe. Our research covers everything from runtime and outlet count to battery technology and surge protection.
| Award | Product | BP Score About BP ScoreThe BP Score is our own rating from 0 to 10, based on performance, design and build, ease of use, and value. It reflects independent research and is never influenced by manufacturers, retailers, or affiliate commissions. Learn more › | Price | |
|---|---|---|---|---|
CyberPower EC850LCD 850VA UPS
|
9.9/10 | $119.95 | Buy | |
| Best Overall |
APC BE425M 425VA UPS
|
9.9/10 | $62.50 | Buy |
| Best Value |
APC BE650G1 650VA UPS Battery Backup
|
9.9/10 | $109.99 | Buy |
| Best Budget |
CyberPower ST625U 625VA UPS Backup & Surge
|
9.8/10 | $79.95 | Buy |
APC BX1500M 1500VA UPS
|
9.8/10 | $189.99 | Buy | |
| Best Premium |
GOLDENMATE 1000VA/800W Lithium UPS
|
9.7/10 | $249.99 | Buy |
APC BE600M1 600VA UPS
|
9.6/10 | $83.99 | Buy | |
CyberPower CP1500PFCLCD 1500VA UPS
|
9.6/10 | $239.95 | Buy | |
CyberPower CP1500AVRLCD3 1500VA UPS
|
9.5/10 | $199.95 | Buy | |
CyberPower ST425 425VA UPS
|
9.5/10 | $59.95 | Buy |
CyberPower EC850LCD 850VA UPS
This UPS provides battery backup and surge protection for home office setups. The LCD panel shows real-time power data, and ECO mode automatically cuts power to peripherals when the computer is off to save energy.
Pros
- Multifunction LCD for detailed power info
- ECO mode reduces energy waste
- 12 outlets total, 6 with battery backup
- 3-year warranty and $100,000 equipment guarantee
- Compact vertical tower design
Cons
- Right-angle plug may block adjacent outlets
- No USB charging ports
- Only half of outlets are battery-backed
APC BE425M 425VA UPS
This compact UPS provides reliable battery backup and surge protection for small home-office devices like Wi-Fi routers and modems. Its wall-mountable design saves space, and the 3-year warranty with $75,000 equipment protection adds peace of mind.
Pros
- Compact wall-mountable design
- 6 outlets with battery backup and surge protection
- 3-year warranty and $75k equipment protection
- Reliable backup for low-power essential devices
Cons
- Limited to low-power devices (255W max)
- Only 4 outlets provide battery backup
- No USB charging ports
APC BE650G1 650VA UPS Battery Backup
This UPS provides reliable 650VA/390W battery backup and surge protection for home office PCs, Wi-Fi routers, and smart home devices. With 8 outlets (4 battery-backed) and user-replaceable battery, it keeps essential gear running during outages.
Pros
- User-replaceable battery extends lifespan
- Compact size fits under desk or shelf
- Good runtime for networking and PC gear
- Solid warranty and equipment protection
Cons
- Limited outlets for larger setups
- No USB charging ports
- Battery replacement battery sold separately
CyberPower ST625U 625VA UPS Backup & Surge
This standby UPS safeguards home office and entertainment setups with battery backup and surge protection. It features eight outlets (four battery-backed), two USB charging ports, and an energy-efficient design in a compact 5-pound unit.
Pros
- Four battery backup plus four surge-only outlets
- Two USB ports share 2.1 amps for devices
- GreenPower design reduces power consumption
- Compact size fits small spaces
- 3-year warranty including battery
Cons
- Modest 360W power output
- Simulated sine wave output
- No LCD display for status
APC BX1500M 1500VA UPS
This UPS provides reliable backup power for home setups, with enough capacity to keep computers, Wi-Fi, and entertainment systems running during outages. Automatic voltage regulation helps maintain stable power without draining the battery.
Pros
- High VA capacity for home use
- Long runtime at moderate loads
- AVR extends battery life
- User-replaceable battery
- Energy efficient design
Cons
- Heavy at 24.2 pounds
- Battery replacement costs extra
GOLDENMATE 1000VA/800W Lithium UPS
This UPS uses a lithium iron phosphate battery rated for over 10 years and 5000 cycles, lowering total cost compared to lead-acid models. It delivers pure sine wave power and surge protection across eight outlets, making it a solid choice for computers and network equipment.
Pros
- Long battery lifespan: 10+ years, 5000 cycles
- Lower total cost of ownership than lead-acid
- Pure sine wave output
- Eight outlets with surge protection
- Intelligent LCD display
Cons
- Fan noise up to 50 dB under heavy load
- Heavy at 12.35 pounds
- Limited to 800W output
APC BE600M1 600VA UPS
This compact UPS keeps your computer, Wi-Fi router, and other essential gear running during short power outages, with 23 minutes of runtime at a 100W load. It offers five battery-backed and surge-protected outlets plus two surge-only outlets, and a built-in USB port for charging phones. The user-replaceable battery extends the unit's lifespan, making it a practical choice for home offices.
Pros
- Battery backup for essential devices
- Surge protection on all outlets
- Built-in USB port for phone charging
- User-replaceable battery
- Compact desktop footprint
Cons
- Limited to 330W continuous power
- Runtime drops quickly with higher loads
- No LCD display for battery status
CyberPower CP1500PFCLCD 1500VA UPS
The CyberPower CP1500PFCLCD is a 1500VA/1000W UPS with pure sine wave output, ideal for sensitive electronics like computers with active PFC power supplies. It offers 12 outlets (6 with battery backup), automatic voltage regulation, and a tilting color LCD that displays detailed power status. The unit also includes USB-C and USB-A charging ports and comes with a 3-year warranty and $500,000 equipment guarantee.
Pros
- Pure sine wave output for active PFC power supplies
- Automatic Voltage Regulation (AVR) to prevent battery drain
- Multifunction color LCD panel with tilt adjustment
- 12 outlets including 6 battery backup and 6 surge-only
- Includes USB-C and USB-A charging ports
Cons
- Heavy at 24.9 pounds
- Large footprint (14 inches deep)
- Only 6 of 12 outlets have battery backup
CyberPower CP1500AVRLCD3 1500VA UPS
This UPS provides 1500VA/900W battery backup for workstations and networking gear, featuring a color LCD for real-time monitoring and automatic voltage regulation to correct fluctuations without draining battery.
Pros
- 12 outlets total with 6 battery backup
- Color LCD provides detailed power info
- AVR reduces battery drain from small fluctuations
- USB ports for charging phones and tablets
- Solid warranty and equipment guarantee
Cons
- Simulated sine wave, not for sensitive equipment
- Large and heavy at 23.8 pounds
CyberPower ST425 425VA UPS
This compact standby UPS provides battery backup and surge protection for home office and entertainment setups. With 8 outlets (4 backup, 4 surge), it safeguards computers, gaming consoles, and routers. Its GreenPower design reduces energy consumption, and the 3-year warranty covers the battery.
Pros
- Compact and lightweight design
- 8 outlets with 4 battery backup
- Transformer-spaced outlets for large plugs
- GreenPower high efficiency
- 3-year warranty including battery
Cons
- Only 260W capacity limits power-hungry devices
- Simulated sine wave output
- No USB charging ports
Best Uninterruptible Power Supply Battery Buying Guide
Capacity and Runtime
The VA (volt-amp) rating determines how much load a UPS can handle. For a standard desktop PC with a monitor, a 650VA unit offers enough runtime to save files and shut down.
Higher-capacity models (1000VA+) support multiple devices or longer runtimes. Consider your total wattage and how much time you need to complete a safe shutdown.
Runtime varies with load. A 1500VA UPS might run a small server for 10 minutes but a single PC for over 30. Check manufacturer charts for your specific equipment.
Form Factor and Outlets
UPS units come in tower and desktop shapes. A compact tower fits under a desk, while a desktop model sits near monitors or peripherals. Look for enough battery-backed outlets for your essential gear, typically 6 to 12. Some outlets offer surge-only protection for non-critical devices.
Also check spacing: large power bricks may block adjacent outlets. Models with widely spaced outlets or side-facing plugs are more convenient.
Surge Protection and AVR
All UPS units include surge protection, but ratings vary. Look for a high joule rating for better longevity. Automatic Voltage Regulation (AVR) corrects minor fluctuations without switching to battery, preserving runtime. For sensitive electronics, AVR is a valuable feature.
Compare with dedicated multi-outlet power supplies for additional surge coverage.
Sinewave output (pure sine wave) is critical for active PFC power supplies in modern PCs and servers. Simulated sine wave may cause instability or shutdowns.
Connectivity and Management
Many UPS models offer USB or network ports for automatic shutdown software. This is essential for unattended laptops or NAS devices. Some include LCD displays showing load, runtime, and battery status. Remote monitoring via SNMP is available on higher-end models for IT environments.
Software compatibility matters: ensure the UPS works with your operating system and supports graceful shutdown for your applications.
Battery Type: Lead-Acid vs Lithium
Most UPS units use sealed lead-acid (SLA) batteries, which are affordable and reliable. Lithium-ion (LiFePO4) batteries are lighter, last longer (2, 3x cycle life), and maintain capacity in high temperatures. They’re ideal for gaming laptops or compact setups where weight and longevity matter.
Lithium UPS units cost more upfront but may save money over time with fewer battery replacements. They also charge faster and are often smaller.
Noise and Heat
UPS fans produce noise under load, typically 40, 50 dB. For quiet environments like bedrooms or offices, look for fanless models or those with variable-speed fans. Heat output is minimal but ensure ventilation. Placing a UPS near graphics cards or other heat-generating components may reduce battery life.
Some models have silent modes during normal operation, only activating fans when charging or under heavy load.
Why You Should Trust Us
At BestProducts, we score each product on our 0, 10 BP Score based on consistent criteria. Our evaluations are grounded in research, published data, expert review consensus, and verified buyer feedback.
We do not conduct our own product trials; our assessments are objective and transparent. This methodology ensures our recommendations are trustworthy and unbiased.
Final Thoughts
- Best Overall: APC BE650G1, With a 9.9 BP Score, this 650VA model offers reliable performance, AVR, and excellent value for most home and office setups.
- Best Budget Pick: CyberPower ST425, A compact 425VA unit that covers essential devices at a low price, scoring 9.5 for its affordability and basic protection.
- Best for High Power: APC BX1500M, 1500VA capacity with LCD and AVR, ideal for gaming rigs or small servers, earning a 9.8 BP Score.
- Best Lithium Option: GOLDENMATE 1000VA/800W Lithium, Lightweight LiFePO4 battery with long lifespan, perfect for compact setups, scoring 9.7.
- Best LCD Display: CyberPower CP1500AVRLCD3, Intelligent LCD shows detailed status, with 9.5 BP Score for its advanced monitoring.
For protecting external drives and other data-critical gear, any of these UPS units will keep your equipment safe during outages.
Frequently Asked Questions
What size UPS do I need?
Calculate the total wattage of your essential devices and choose a UPS with a VA rating at least 1.5 times that number. For typical office computers, a 650VA unit suffices; for multiple monitors and a PC, consider 1000VA or more.
How long will a UPS run my equipment?
Runtime depends on battery capacity and load. A 650VA UPS running a 300W PC may last 10, 15 minutes. Higher-capacity models with larger batteries provide longer runtime. Check manufacturer specs for your specific load.
For peripherals like mechanical keyboards, they draw minimal power and won’t significantly affect runtime.
Can I replace the battery?
Most UPS units have user-replaceable batteries. SLA batteries typically last 3, 5 years; lithium batteries last 8, 10 years. Replacement batteries are available from the manufacturer or third parties. Some models offer hot-swap capabilities.
Do I need AVR?
If your area experiences frequent brownouts or voltage sags, AVR helps stabilize power without draining the battery. It’s especially useful for sensitive electronics like computers and networking gear. Many UPS units include AVR as a standard feature.
Are lithium UPS better?
Lithium UPS units are lighter, last longer, and charge faster than lead-acid models. They’re ideal for compact spaces and frequent power outages. However, they cost more upfront. For most home offices, a quality lead-acid UPS is sufficient.
When planning your workspace, consider the placement relative to your office chairs and desk for easy access.
About the author
Gordon writes about printers, scanners, and external drives for BestProducts, comparing print quality, running costs, transfer speed, and price per terabyte. He helps readers keep documents and files under control at home and at the office.