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CyberPower

CyberPower ST625U Standby UPS Battery Backup and Surge Protector

Based on 2,821 reviews
Condition: New
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$79.95
Holiday Deal · 71% off was $274.95

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Nov 17
Order within 3 hours and 23 minutes

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At a glance

Condition
New
Style
Compact
Size
625VA
Model
ST625U
Dimensions
3.2 x 9.8 x 5.8 in
Weight
5 lb
Color
Black
Warranty
3-YEAR WARRANTY – INCLUDING THE BATTERY, $100,000 Connected Equipment Guarantee and FREE PowerPanel® Personal Edition Management Software (Download)

Features 5

  • 625VA/360W Standby Uninterruptible Power Supply (UPS): Uses simulated sine wave output to provide battery backup power and to safeguard home office, home entertainment including computers, gaming consoles, and broadband routers
  • 8 NEMA 5-15R OUTLETS: Four battery backup & surge protected outlets; Four surge protected outlets; INPUT: NEMA 5-15P plug with 5 foot power cord
  • 2 USB CHARGING PORTS: Share 2.1 amps to charge and power tablets, smartphones, MP3 players, and other mobile devices; LED STATUS LIGHTS: indicates Power-On and Wiring Fault
  • GREENPOWER UPS HIGH EFFICIENCY DESIGN: Reduces power consumption by utilizing a compact charger and power inverter to create an ultra-efficient backup power system for home and office use

Description

The CyberPower ST625U Uninterruptible power supply (UPS) system provides battery backup and surge protection for lightning-induced surges and other power events that can damage electronic equipment. This unit delivers enough battery backup to power connected electronics through utility power failure and enough runtime to perform a graceful shutdown to protect against the loss of data and damage to valuable electronics during longer outages. The ST625U has two USB charging ports with 2.1 amp shared total output which gives you a faster charging time. This unit is designed to minimize noise for a quieter work environment and to run efficiently to reduce power consumption. Including a sleek design, this UPS is perfect for all your home office and entertainment needs, including computers, gaming consoles, and Broadband routers. Backed by a three-year warranty and a lifetime connected equipment guarantee up to 100,000, this UPS offers reliable protection and peace of mind.

Specs 37

Brand CyberPower
Battery Cell Composition Lead Acid
Product Dimensions 3.2"D x 9.8"W x 5.8"H
Voltage 120 volts
Color Black
Amperage 3 A
Form Factor Compact
Input Voltage 120 V AC

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

good unit but!
Style: Compact Size: 625VA
most of the standby units only work for about 2years , before you need a new one. Lost power recently and only lasted for 45 minutes. Sept. 9, 2026
Reviewed in the United States on September 9, 2026 by andytech
Auto turn on nice
Style: Compact Size: 625VA
Has the feature that when line power comes back. It auto charges and turns on the load side automatically. No need to press power button manually. All ups devices should do this or they become a pita
Reviewed in the United States on September 23, 2026 by DF_EE
Excellent for my use
Style: Compact Size: 625VA
Works great. Replaced a larger CyberPower UPS which failed after 9 years. Did not have a replaceable battery. Purchased this one because the battery is replaceable. I have a 65” TV, router, cable box and a Bose stereo connected to this UPS unit. No issues.
Reviewed in the United States on September 27, 2026 by Tim
So far, so good!
Style: Compact Size: 625VA
I have my 75" TV plugged into one of these, along with my MacPro computer and my stereo system. I also have one with all my LAN devices, including modem, plugged into it. I did all this to have uninterrupted service during the brief period that it takes my electrical system to switch over from an electricity outage, to my 25K whole house generator. Had an outage recently, and it was seamless! I've deducted one star, as I can't speak to longevity, or the quality of its battery at this time. ... show more
Reviewed in the United States on October 2, 2026 by BlueSteve
Excellent product
Style: Compact Size: 625VA
Works great and was easy to install. All electronics protected. Okay price and fast delivery.
Reviewed in the United States on September 19, 2026 by Dragonmageds
This was the one I needed
Style: Compact Size: 625VA
I got this to replace a 425va UPS. I made the mistake of believing I could run my PS5 and an older flat screen, thinking it would be fine. I should have taken a sec to do some research. Im using the 625va for a month now. Two bad storms with a few outages and no issues to speak of.
Reviewed in the United States on October 5, 2026 by Johnrokk
Good backup for our home office
Style: Compact Size: 625VA
I bought this before I realized how easy it is to change the battery in my older but similar unit. So now I have two that work flawlessly!
Reviewed in the United States on October 10, 2026 by Major Tom
Absolutely worthless
Style: Compact Size: 625VA
This thing is just worthless and was a total waste of money. Sadly I can't return it as someone threw the box out already. It can't handle the load of... well anything really. It could keep your router going in an outage and that's about it. It can't support a desktop computer unless it's doing nothing but sitting idle, but even then it has only a couple minutes of power. If you open anything even remotely graphics related, it starts screaming because it's overloaded. So really it's just a lie that it's pictured with computers because it can't support a computer at all. Oh and the setting to disable alarms does not disable alarms. So even if you said fine, the piece of junk will only last seconds apparently if the power goes out, at least it protects against flickers, it will scream at you all the time. I'm really hard pressed to understand this overload condition anyway, it really doesn't make any sense other than it's telling you it couldn't power the draw for more than 30 seconds if the power went out. If you think it looks like a good deal, it's garbage. Only now that I scour the details further do I see it lists the run time as 2 minutes. That's the tip off that it's junk, and I missed it. ... show more
Reviewed in the United States on August 28, 2026 by Ebonweaver
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