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CyberPower

CyberPower CP550SLG Standby UPS Battery Backup and Surge Protector, 550VA/330W, 8 Outlets, Compact, UL Certified

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Arrives Wednesday, Sep 24
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Style: Standby


Size: 550VA


Features

  • 550VA/330W Standby 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; INPUT: NEMA 5-15P right angle, 45 degree offset plug with five foot power cord
  • LED INDICATORS: LED status lights indicate Power-On and Wiring Fault
  • USB CONNECTIVITY: HID compliant USB port enables full integration with built-in power management and auto-shutdown features of Windows, Linux and Mac OS X
  • 3-YEAR WARRANTY INCLUDING THE BATTERY; $100,000 Connected Equipment Guarantee and FREE PowerPanel Personal Edition Management Software (Download)

Description

The CyberPower Standby CP550SLG UPS safeguards a home office PC and other electronics (monitors, scanners, speakers, CD/DVD/MP3 players and more) from surges, sags, brownouts and other power disruptions. The CP550SLG provides surge protected, battery backup and features 550VA/330 Watt capacity, GreenPower UPS technology, 8-NEMA 5-15P receptacles, (4 wide-spaced), Compact design, 1- USB port, phone/fax (RJ11) line protection, EMI/RFI filters, PowerPanel UPS management software , GreenPower UPS - Advanced energy-saving circuitry that reduces UPS energy costs by 75 percent, USB Connectivity - HID compliant USB port enables full integration with built-in power management and auto shutdown features of Windows, Linux and Mac OS X, EMI/RFI Filters - Shielding against electromagnetic interference and radio frequency signals prevents line noise (humming) over telephone lines or audio systems, Transformer-Spaced Outlets and8211, Widely-spaced outlets accommodate large transformer-based plugs, Mounting and 8211, mounting options: horizontal, vertical, cabinet, and wall , LED Indicators/Audible Alarms - LED status lights indicate Power-On and wiring faults / Distinctive tones identify when the unit is running on battery power, is overloaded or when the battery is low.

Specs & Other Info

SpecificationDetails
BrandCyberPower
Battery CompositionSealed Lead Acid
Dimensions3.3"D x 9.8"W x 5.8"H
Operating Voltage120 Volts
ColorBlack
Weight6.4 lbs
Model NumberCP550SLG
Required Batteries1 12V battery
AvailabilityNot Discontinued
Release DateApril 2, 2004
ManufacturerCyberPower Systems
LanguageEnglish
Origin CountryVietnam

Frequently asked questions

The backup time depends on the total load connected to the UPS. For a load of 165W (50% of its capacity), the CyberPower CP550SLG typically provides 8-10 minutes of backup time, enough to safely shut down equipment.

Yes, the CyberPower CP550SLG can support a desktop computer during a power outage. With a capacity of 550VA/330W, it is designed to provide emergency power to devices such as desktop computers, allowing for safe shutdowns and preventing data loss.

The CyberPower CP550SLG has a battery indicator that signals when the battery is low or needs replacement. Regular self-tests also help in determining battery health. Expect to replace the battery approximately every 3-5 years, depending on usage and environmental factors.

Yes, the CyberPower CP550SLG offers surge protection and noise filtering. Its 8 outlets are designed to protect connected equipment from harmful electrical transients, while also providing reliable power backup during outages.

Similar Products

Top Amazon Reviews

πŸš€ Abunda's Overview

This is our summary and key points to consider based on customer reviews.

The reviewed UPS system is praised for its reliability during power outages, maintaining power for essential devices like satellite systems, breathing machines, and home networks. Users appreciate the UPS for its reasonable price, small footprint, and efficient battery backup, providing peace of mind and protection for connected devices. It offers both surge protection and battery backup, though it's noted that not all outlets include battery backup.

Pros

  • πŸ”‹ Reliable battery backup during power outages
  • πŸ’Έ Offers good value for the price
  • πŸ”Œ Includes surge protection and battery backup outlets
  • πŸ”„ Maintains power without interruption, vital for essential equipment
  • πŸš€ Compact size suitable for small spaces

Cons

  • ⏲ Battery life may be limited to around 3 years
  • πŸ”‹ Only half of the outlets have battery backup
  • πŸ‘ƒ Some units may emit an odd smell initially

Should I Buy It?

Yes, if you're in need of an affordable, reliable UPS system for essential home or office electronics, particularly for short-term power outages. While it has a few limitations, such as only having battery backup for half of the outlets, its performance and compact size make it a worthwhile choice for basic needs.

    • Reliable Backup Power! Great Value in the CyberPower ST425
Style: Standby Size: 425VA
I recently purchased the CyberPower ST425 Standby UPS System, and it's exactly what I needed for protecting my electronics. This compact unit offers 425VA/260W of backup power, which is perfect for keeping my essential devices running during short power outages or preventing data loss from unexpected surges. With 8 outlets, I have plenty of space to plug in my computer, monitor, modem, and other peripherals. The compact size is a major plus – it fits neatly under my desk without taking up much space. The black finish is also sleek and blends in well. Setup was incredibly easy; I just plugged it in and connected my devices. It provides peace of mind knowing that my equipment is protected from power fluctuations and that I'll have a few minutes of backup power to save my work and shut down properly during an outage. For anyone looking for an affordable, reliable, and compact UPS to protect their valuable electronics, the CyberPower ST425 is an excellent choice. It's a great value for the features it provides. ... show more
Reviewed in the United States on April 25, 2025 by Seth Green
    • Compact and Powerful Enough For Modem And Two Routers.
Style: Standby Size: 425VA
CyberPower ST425 Standby UPS System. I got tired of resetting modem and routers each time the power surged or went out for a few seconds. This UPS fit right into the media wall box, simple to use with outlets staggered and flipped positions. In the first week it got its first power outage and performed seamlessly. I don't know how long it could have run with this low load, this time it was only a few minutes. I could just unplug it and see, but, nah, I ain't doing that! Well packaged, easy to set up, reasonable price, fast shipping, good seller! ... show more
Reviewed in the United States on August 27, 2025 by J K
    • Nice unit but small battery and low wattage output
Style: Standby Size: 425VA
Works well but very short time to save your work if the power goes out. Get a bigger one if you want more standby time. Also, don’t overload. This is a small unit good for small standby electronics.
Reviewed in the United States on August 7, 2025 by John
    • Overall good quality
Style: Standby Size: 425VA
We’ve bought a couple of these, they work well, are a great compact size that fits well in any space. The two out of four of ours failed after a half of a second power flicker. When it was time to replace, we came back to this brand, due to its ease of use and generally good quality.
Reviewed in the United States on July 17, 2025 by Jean Curran
    • definitely worth it, conveniently placed outlets.
Style: Standby Size: 425VA
We like these and keep buying them as the old APC ones die off. They are of good quality and last a long time before needing replacing. The plugs are conveniently placed so the plugs with transformers on the ends fit too. a Easy to plug in and use immediately, even though it needs to charge the battery, it'll still work (as long as the power doesnt' go out in the first 8 hours!) ... show more
Reviewed in the United States on July 6, 2025 by Mariel
    • Software does not seem to work does not come with cd/DVD to install but: there is a work around.
Style: Standby Size: 625VA
The software doesn't seem to work. CS tried to help but to no avail. The softwaret installs, but when you click on it to show the interface, it just does not work. The unit itself works, but not effective in monitoring when you cannot use the software. I just do not know if this unit's backup or surge protection is working because the software doesn't work to show me anything. UPDATE: CS was great. work around worked. Unit works perfectly. ... show more
Reviewed in the United States on September 1, 2025 by techiegirl
    • It works well
Style: Standby Size: 950VA
My power went down for an hour in the unit was still active. It took me a while to figure out the annoying beep. You just have to hit the power button twice quickly.
Reviewed in the United States on September 6, 2025 by victoria cusumano
    • Sturdy, dependable, reliable
Style: Standby Size: 625VA
Been using these batteries for 20 years. Rugged, sturdy and durable. Great for use in hurricanes/ power outages
Reviewed in the United States on September 4, 2025 by Lisa E.

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