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Cyberpower CP550SLG UPS 550VA 330W ENERGY-SAVING Standby UPS AVR LCD RJ11 USB Serial 8 Outlet

Cyberpower CP550SLG UPS 550VA 330W ENERGY-SAVING Standby UPS AVR LCD RJ11 USB Serial 8 Outlet - 1
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Reg. Price: $74.25  CAD
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Part #: CP550SLG

SKU: 53449
Shipping Weight: 7.2 lbs

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Customer Reviews of CyberPower CP550SLG

Product reviews on NCIX.com are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by NCIX.com, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding CyberPower CP550SLG reviews.
Experience: 1 Years

Works well

Battery compartment uses some kind of torx screw
Overload sensor occasionally trips when there's no load on the battery backup outlets.
There's no way to turn off the overload beep so for home use, make sure to keep a minimal load on the ups. Otherwise, every once in a while, you may get woken up overnight by a loud and persistent beep.

Experience: 2 Weeks


Works well
Decent capacity for the price
Outlets lay out well placed
None so far
Plugged in and tested great, perfect to keep a few smaller electronics going through a power outage.

Experience: 12 Months


the price is right
AC sockets are a bit "sticky" - hard to pull wall warts in and out.
I have a dozen of these, most 1-2 years old. Only one has failed, after a year. And that was a sort of 'intermittent" failure - crashed on a power bump (attached gear lost power!) but afterwards "appears fine". Obviously I can't trust it now, so have taken it out of service.

the others are ticking away just fine, and they all get multiple power surges daily, and once or twice a year a blackout.

I don't recommend them as a 'portable' UPS where you might carry it from de to deal and are constantly plugging and unplugging stuff. The sockets are a bit 'sticky' for that. Best to use them in permanent installations, where stuff is plugged in once, and never disturbed again...

Experience: 1 Months


replaceable standard battery type
cords are getting shorter every model
This was purchased in a crunch as a storm fried our previous UPS circuit board, and we could not run long without one.

The cord is shorter than its previous, which in our case was a little too short, so we had to "modify" our environment. The cord is still quite long, but 30cm less than its predecessor.

The thing I do like, and reason for purchasing this particular one was the battery is user-replaceable, and with a common battery type. Much cheaper than being forced to purchase a non-standard battery or an entire new UPS after a few years.

Only a month, one power failure during this time, and it worked as designed. Time will tell, but I have confidence in this brand.

Experience: 2 Months


Perfect for low powered PC,
Perfect for smaller itx builds, with total power load under 200 watts

Experience: 3 Days


Cheap and quiet
Ugly design
Does what its supposed to do at a reasonable price. Usb port is a plus

Experience: 3 Days


- Small form factor.
- Decent and simple software.
- Haven't seen any so far.
Connected this at a family members house to keep the modem, router (Asus N66U), and an external HDD going. Indicates 29 watts of load and 89 minutes of run time. Software has features for shutdown and is quite simple and easy to use. Bought it specifically because it is compatible with QNAP NAS (USB control), which I will be deploying there is a few months.

Sticker on UPS recommends 8 hours of charging before use, so I plugged it in one day and then set it up the next.

Experience: 2 Weeks


Parfaite unité de secour
Permet de fermé et sauvegardé les travaux encore lors de panne de courant.

Experience: 7 Days


Compact, lots of outlets, comes with software
Not enough battery power to run a computer with a 750W power supply
Bought this unit to protect my main computer, but it will scream at me if I do anything more than run a web browser and the calculator. Alarm goes off immediately if you draw more than the 330W the battery is rated for, and shutdown follows quickly. Word to the wise: if you're looking to protect your computer, buy something with a higher wattage rating.

Other than that, the unit is solid, well-made, well-packaged and comes with easy to use software.

Experience: 20 Days


Protect your precious equipement perfectly
no LCD display
I've buyed two of those to protect both of my 55" TV against surge. This is a must have for everyone who have expensive TV setup. Don't trust expensive power bars, buy an UPS for the same price. It will protect your equipement and let them run in case of a outage giving you time to shut them off normally.

Product Videos [ Edit ]

Features [ Edit | History ]


A compact UPS with standby topology, the CyberPower Standby CP550SLG provides battery backup (using simulated sine wave output) and surge protection for desktop computers, workstations, networking devices, and home entertainment systems. During power interruptions, the CP550SLG offers reliable power protection and battery backup. The CP550SLG comes with a three-year warranty and a $100,000 Connected Equipment Guarantee.
Quick Specs:
Package Contents
  • Standby CP550SLG 550 VA Desktop UPS
  • PowerPanel Personal Edition UPS Management Software CD
Input Voltage 110 V AC
Limited Warranty 3 Year
Output Voltage 120 V AC
Weight (Approximate) 5.90 lb
Form Factor Desktop
Receptacles 8 x NEMA 5-15R
Plug/Connector Type NEMA 5-15P
Input Voltage Range 96 V AC - 140 V AC
Height 5.8"
Width 9.8"
Depth 3.3"
Environmentally Friendly Yes
Environmental Certification RoHS ENERGY STAR
Maximum Battery Recharge Time 8 Hour
Backup/Run Time (Full Load) 2 Minute
Load Capacity (VA) 550 VA
Load Capacity (Watt) 330 W
Energy Star Yes

Specifications [ Edit | History ]

Battery Information  
     Backup/Run Time (Full Load): 2 Minute
     Backup/Run Time (Half Load): 8 Minute
     Battery Chemistry: Sealed Lead Acid (SLA)
     Maximum Battery Recharge Time: 8 Hour
     Number of Batteries: 1
General Information  
     Brand Name: CyberPower
     Manufacturer: CyberPower Systems, Inc
     Manufacturer Part Number: CP550SLG
     Manufacturer Website Address: https://www.cyberpowersystems.com
     Product Model: CP550SLG
     Product Name: Standby CP550SLG 550 VA Desktop UPS
     Product Type: Standby UPS
     USB: Yes
     Certifications & Standards:
  • UL1778
  • cUL 107.3
  • FCC DOC Class B

     Energy Star: Yes
     Environmental Certification: RoHS
     Environmentally Friendly: Yes
     Package Contents:
  • Standby CP550SLG 550 VA Desktop UPS
  • PowerPanel Personal Edition UPS Management Software CD

     Software Included: PowerPanel Personal Edition UPS Management Software
Physical Characteristics  
     Depth: 3.30" (83.82 mm)
     Form Factor: Desktop
     Height: 5.80" (147.32 mm)
     Weight (Approximate): 2.68 kg
     Width: 9.75" (247.65 mm)
Power Description  
     Input Voltage: 110 V AC
     Input Voltage Range: 96 V AC - 140 V AC
     Load Capacity (VA): 550 VA
     Load Capacity (Watt): 330 W
     Output Voltage: 120 V AC
Technical Information  
     Cord Length: 5 ft
     Dataline Protection: RJ-11
     Plug/Connector Type: NEMA 5-15P
     Receptacles: 8 x NEMA 5-15R
     Limited Warranty: 3 Year

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