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CyberPower CP550SLG Standby UPS System, 550VA/330W, 8 Outlets, Compact

4.5 4.5 out of 5 stars 4,499 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Computer Uninterruptible Power Supply Units by CyberPower

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550VA
UPS

Purchase options and add-ons

Brand CyberPower
Battery Cell Composition Sealed Lead Acid
Product Dimensions 3.3"D x 9.8"W x 5.8"H
Voltage 120 Volts
Color Black

About this item

  • 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)
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CyberPower CP550SLG Standby UPS System, 550VA/330W, 8 Outlets, Compact
CyberPower CP550SLG Standby UPS System, 550VA/330W, 8 Outlets, Compact
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Price-5% $69.95
List:$73.95
-7% $64.99
Typical:$69.99
$59.99$62.99$89.99$79.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Monday, Apr 1
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Monday, Apr 1
Customer Ratings
WiFi signal
3.7
4.0
3.8
3.5
Battery life
3.2
3.8
5.0
3.7
Tech Support
3.2
3.5
3.5
2.3
Value for money
3.9
4.2
4.0
3.7
Sold By
Amazon.com
SKE Smartkey UPS
SKE Smartkey UPS
Amazon.com
SKE Smartkey UPS
SKE Smartkey UPS
power outlets
8
6
6
7
6
6
size
550VA
600VA
425VA/240W
600VA
850VA/480W
625VA/360W
wattage
330 watts
240 watts
480 watts
voltage
120 volts
120 volts
120 volts
120 volts
120 volts
120 volts
battery composition
sealed lead acid
lead acid
sealed lead acid
sealed lead acid
lead acid
lead acid
weight
6.4 pounds
8.82 pounds
8.4 pounds
10.14 pounds
9.26 pounds

From the manufacturer

CyberPower Backup UPS Systems - Your ultimate Ally In Power
Uninterruptible Power Supply System

Why Do You Need a UPS System?

Even brief power outages can result in data loss or potential hardware damage. A UPS system provides battery backup power to keep your devices running during short outages and provides enough runtime to properly shut down electronics during extended outages.

CyberPower CP550SLG Battery Backup UPS - Hot Spots

Where To Use

Desktop Computers

Desktop Computers

Ensure seamless power to your PC and make certain you have time to safely shut down your system during a longer outage.

Home Networking/VoIP

Home Networking/VoIP

Keep your smart-home devices connected to your WIFI during power outages and brownouts.

Personal Electronics

Personal Electronics

Don’t let the game end when the power goes out. Backup battery power keeps gaming consoles, stereos, and chargers running.

Home Theaters

Home Theaters

Protect sensitive televisions, projectors, satellites, and cable boxes from power surges and spikes.

CyberPower Standby UPS Systems

CyberPower CP550SLG Battery Backup UPS

CP550SLG

CyberPower CP350SLG Battery Backup UPS

CP350SLG

CyberPower CP425SLG Battery Backup UPS

CP425SLG

CyberPower RT650 Battery Backup UPS

RT650

Customer Reviews
4.5 out of 5 stars
4,499
4.5 out of 5 stars
4,499
4.5 out of 5 stars
1,485
4.1 out of 5 stars
32
Battery Power
550 350 425 650
Watts
330 255 255 400
Runtime (Half/Full)
8/2 Minutes 8/2 Minutes 7/2 Minutes 10/2 Minutes
Battery & Surge Protected
4 Outlets 3 Outlets 4 Outlets 3 Outlets
Surge Protected Only
4 Outlets 3 Outlets 4 Outlets 3 Outlets
AVR
LCD Screen
Topology
Standby Standby Standby Standby
Waveform
Simulated Sine Wave Simulated Sine Wave Simulated Sine Wave Simulated Sine Wave
Model Type
Compact Compact Compact Mini-Tower
Management Software
PowerPanel Personal Not Available PowerPanel Personal PowerPanel Personal

How long will the UPS power my systems after the power goes out?

Run times vary based on the power required by connected devices. This system is estimated to run for 8 minutes at half load, 2 minutes for a full load.

Can this UPS model be monitored?

The CP550SLG comes with a free download of PowerPanel provides a user-friendly dashboard interface for controlling and monitoring the UPS.

Do all of the outlets have battery backup power and surge protection?

No, not all of the outlets have battery backup power. The CP550SLG has four battery backup and surge protected outlets and four surge protected outlets.

Can this unit accommodate larger plugs?

Yes, the CP550SLG can accommodate four large transformer-based plugs without compromising the access of other outlets.

How do I mute the alarms?

To turn the alarm off, quickly press the power button twice. You will hear two short beeps when the alarm is turned off. To turn the alarm back on, quickly press the power button twice. You will hear a short beep when the alarm is turned on.

Product guides and documents

What's in the box

  • UPS System, User Manual, USB A+B Type Cable, and Telephone Cable
  • Looking for specific info?

    Product information

    Warranty & Support

    Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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    CyberPower

    CyberPower CP550SLG Standby UPS System, 550VA/330W, 8 Outlets, Compact


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    Product 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 and#8211, 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.

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    4,499 global ratings

    Customers say

    Customers like the ease of use and value of the uninterruptible power supply. For example, they mention it's easy to setup and use, with no problems whatsoever during install or use. That said, some complain about the auto shut down and noise. They say it shuts down without warning and makes a loud beeping sound. Opinions are mixed on quality.

    AI-generated from the text of customer reviews

    425 customers mention318 positive107 negative

    Customers like the performance of the power supply. They say it works well, it's backed up, and it never fails to work during power failures. That said, some say it'd be ideal for other kinds of equipment.

    "...It works great. I had to replace my old one (same model)...the battery lasted many years." Read more

    "...so when there's a power outage my timers don't get messed up and it's worked great. My power never goes out for more than a few mins." Read more

    "Well, it seems to work ok. I haven't really pushed it a lot...." Read more

    "...it turns out it blew something in my subwoofer because now it didn't work at all..." Read more

    167 customers mention136 positive31 negative

    Customers like the value of the uninterruptible power supply. They say it's a good investment for computers and big screen TVs, and it'll be much less expensive to replace. Customers also mention that it'd be a nice, cheap UPS for running small devices during power fluctuations.

    "Good overall battery support for a reasonable price." Read more

    "...Conclusion: It's not a powerful unit but it does the job, at a great price." Read more

    "...All in all this Cyberpower UPS is a good value for the money even if it lacks some of the bells and whistles of the more expensive units...." Read more

    "Good price and it is Plug n Play......... no battery to mess with." Read more

    149 customers mention126 positive23 negative

    Customers like the size of the uninterruptible power supply. For example, they mention it's small enough to barely notice it under the TV stand, it works great for keeping smaller devices, and it'll fit on a tabletop. That said, some say it has plenty of room for two large wall-warts.

    "...But it is perfect for those little loads that don't draw much power and so don't need much of a battery for even a reasonably long run time...." Read more

    "...The small footprint is also nice - some of the UPS units are bulky. This was perfect for my application." Read more

    "...Pros: Small, convenient, true sine wave output, good value for the money...." Read more

    "...I do set it as far from the container as it can reach, and it sits nicely tucked up against the back wall in the corner. I'm so glad I found this!..." Read more

    56 customers mention53 positive3 negative

    Customers find the uninterruptible power supply easy to use and setup. They say it's reliable, simple, and inexpensive. Customers also mention that it has all the basics, including downloadable software.

    "Good price and it is Plug n Play......... no battery to mess with." Read more

    "...I have had a few backup power strips this one is small and well made easy to plug in and clean ect ect ect..." Read more

    "Easy to use and set up. It weighs a reasonable weight and is easy to move compared to my last one, so I appreciate that feature...." Read more

    "...it is easy enough to use, it would be nice if they clearly indicated like with a half sheet of paper what model you were getting...." Read more

    174 customers mention91 positive83 negative

    Customers are mixed about the quality of the uninterruptible power supply. Some mention that it's very reliable and has held up better than expected. However, others say that it has a high failure rate and is not made as well as APC units.

    "...I would recommend it for anyone looking for a cheap and efficient UPS solution for a normal computer but be warned most high end gaming PC's with..." Read more

    "...I smelt burning, and I was really scared. When the power came back, my computer turned on fine, monitors alright. I was relieved...." Read more

    "Quick ReviewGood well made product - good for standard electronics / office computers - not for high grade electronics like gaming..." Read more

    "...Then, we smell something burning... No fire, but electrical components being fried. Low and behold, the beeping quit, but so did the UPS...." Read more

    298 customers mention79 positive219 negative

    Customers are dissatisfied with the battery life of the uninterruptible power supply. They mention that the battery is useless, it starts draining power, and it stops charging. The battery will wear down over time and capacity will drop fairly quickly. The unit will not run very long and will not even provide power when the AC is working. Customers are disappointed with this battery backup, and mention that it has only a 5.5 AH battery while APC units of same rating have a 7 AH.

    "...Well today the battery finally went out. So it lasted 3 years not sure if that’s good but seems fine for the price I suppose" Read more

    "...I went away for vacation for a week and when I came back, My computer wont turn on, I checked and noticed the ups was off and I left the ups running..." Read more

    "Good overall battery support for a reasonable price." Read more

    "...These are well-known for losing their ability to charge after some number of years of continuous use. With many (most?)..." Read more

    89 customers mention10 positive79 negative

    Customers are dissatisfied with the noise produced by the power supply. They mention that it starts beeping and hums when it kicks in. Some say that the backup will intermittently beep, while others say that it constantly beepers.

    "...It started doing the loud beeping thing (which by the way, it didn't even keep my computer on like it was supposed to, for even a second) and then I..." Read more

    "...After about 5 minutes it stops doing occasional beeps and starts making one really long and horrible noise instead...." Read more

    "...and that's what I got: 2 minutes without beeping, and 7 minutes more constantly beeping (which means the battery is low)...." Read more

    "Works great, wasy set up. Annoying alarm when the battery backup kicks in. Battery does in about 3 years… right when the warranty expires...." Read more

    61 customers mention17 positive44 negative

    Customers are dissatisfied with the auto shut down of the power supply. They mention that it shuts down without warning, and the reset button does not work. Some say that the power rating is high, but the UPS clicks off when the power fails. Some customers also report that the software shuts their PC down and then shuts the UPS down.

    "...this UPS is that when I plugged it in, it took up beeping and would not stop...." Read more

    "...the CyberPower CP1000AVRLCD that I HATE because it shuts down on slight power flickers, I guess I'll have to spend $100 and go to a better..." Read more

    "...At least it gives one enough time to shut down in a big hurry in a pinch though, which you obviously can't do without it." Read more

    "...My only complaint is that the software shuts down the PC, and then shuts down the UPS. I wanted something to shut down the PC, but NOT the UPS...." Read more

    Keeps my internet up 24/7
    5 Stars
    Keeps my internet up 24/7
    I have several cyberpower power supplies from the 350 up to the 1350 and have no negative issues. Three are at my beach house on the Washington coast where the power is interrupted all the time. If the power even goes off for a second my security cams lose connection & the system must be rebooted and this kicks in so quick they never go down anymore. I'm totally happy with this product backing up my modem/router/dvr,satellite box and security cams.UPDATE-- I have my modem in my water well pump house & it's been plugged into a cyber power supply for two years. In the summer it's scalding hot & humid and winter cold & harsh. The supply hasn't skipped a beat thu several power outages. I do unplug it to run the battery thru a discharge charge cycle and that seems the keep the battery healthy. My phone is voip so that system is also backed up & never failed to work during power failures.I have three Cyber Power power supplies and all three work just fine. I will buy more from this manufacturer in the future if needed . I don't accept products in return for my review.
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    Top reviews from the United States

    Reviewed in the United States on January 3, 2024
    Size: 550VAStyle: UPSVerified Purchase
    Reviewed in the United States on March 2, 2024
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    Reviewed in the United States on December 13, 2023
    Size: 550VAStyle: UPSVerified Purchase
    Reviewed in the United States on July 10, 2012
    70 people found this helpful
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    Reviewed in the United States on November 28, 2023
    Reviewed in the United States on June 12, 2013
    Size: 550VAStyle: UPSVerified Purchase
    2 people found this helpful
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    Reviewed in the United States on September 12, 2023
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    Top reviews from other countries

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    Vinayak Raghuvamshi
    5.0 out of 5 stars Effective and economical
    Reviewed in Canada on February 28, 2024
    Size: 550VAStyle: UPSVerified Purchase
    Paul Conyers
    5.0 out of 5 stars Good value
    Reviewed in Canada on November 8, 2023
    Size: 550VAStyle: UPSVerified Purchase
    2 people found this helpful
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    Ramon Duran
    5.0 out of 5 stars Excelente producto
    Reviewed in Mexico on May 14, 2023
    Size: 550VAStyle: UPSVerified Purchase
    2 people found this helpful
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    Melina
    5.0 out of 5 stars Todo bien hasta ahora
    Reviewed in Mexico on March 13, 2024
    Size: 550VAStyle: UPSVerified Purchase
    Dave
    4.0 out of 5 stars Working well
    Reviewed in Canada on February 21, 2024
    Size: 550VAStyle: UPSVerified Purchase