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Customer Ratings & Reviews

Your price for this item is $242.99
The comparable value price is $249.99

Customer reviews

Rating 4.8 out of 5 stars with 891 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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95%would recommend to a friend

Customers are saying

Customers find value in the 1500VA Sine Wave Battery Back-Up System's long battery life, strong performance, and ease of use. Many appreciate its pure sine wave output, ample power, and user-friendly display and setup. Positive feedback also highlights the unit's quiet operation and compact size. However, some customers note the system's significant weight as a drawback.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 17 Showing 321-340 of 891 reviews
  • Rated 5 out of 5 stars

    Just what I wanted!

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I was leery of purchasing any UPS after reading all the horror stories some purchasers wrote in reviews. This included all the brands. Took the plunge because of frequent lightning storms in my area which cause outages with power fluctuations before and after. Wanted it to act as a voltage regulator, the fact it stays on long enough to power pc off is a plus. Worked like a charm right out of box after charging period. Absolutely quiet, no smell, nothing. Haven't had a severe T-storm yet but has worked perfectly thru two power outages. Software is straight forward and helpful. Everything about this unit exceeded my expectations.

    I would recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    Get Power You Need It!!

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excelent power providing device !! Helps protect other costly devices form power spikes and provides steady emergency electrical power !!!

    I would recommend this to a friend
  • Pros mentioned:
    Sine wave

    Rated 5 out of 5 stars

    Pure sine wave FTW

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is my 3rd? 4th? Cyberpower UPS. They all work very well and customer service is very helpful. A tip for everyone: The better your power bricks (e.g. Gold or better PSUs), the more you need pure sine wave. My gold PSU kept restarting randomly due to fluctuations not corrected by my other non-pure-sinewave UPS.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Best purchase ever

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent product! Keep my work station fully functional during power outages. battery duration is perfect!

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    5/5 stars

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best bang for your buck, very reliable, great battery life.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Must have!

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Its a must have for your precious electronics. Display is great with tons of information. Connect with usb for easy integration with windows. Takes some time for the battery smell to go off, but worth it for a sinewave power unit.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    exactly what I needed.

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    powerful, quiet, reliable -- I assumed my gaming pc and 43 4k monitor would demand too much power so I bought a 2nd to handle wifi, modem, NAS & my extra screens. I should be good for 20-40 minutes during power outage.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Smooths power dips and spikes.

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    My son's computer was glitching out whenever my wife started the clothes dryer or I started my woodworking equipment. This power supply rides through the power dips and spikes and keeps his computer up and running no matter what we do. It will also allow orderly shutdown if we lose power completely.

    I would recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    CyberPower Battery

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have purchased this brand for years. Consequently, the CyberPower has successfully protected all my electronics. I vehemently recommend this product.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Keep the TV and internet running all the time

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    We have a lot, I mean a lot of power flickers. I bought 2 of these, one for the computer/modem and one for the home theater. Besides protecting the equipment, the keep the power on so the modem and the cable box/DVR is not always resetting. These fit in rather limited spaces. Perfect for this two-fold job.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 4 out of 5 stars

    Good product

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Goodcproduct, hekped a lot when we lost power during a hurricane

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Perfect for multiple power needs

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have several of these units now which I use for computer and media . All work without issue

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Great Purchase!

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great piece of equipment. Installed wasily and has worked flawlessly since. I would highly recommend this item

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Works as advertised

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works as advertised. Easy setup. Pleanty of outlets.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Wow!

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I’ve had many of these units in the past so I’m familiar with how they work and what they do. Having the correct power to your high end devices is paramount for optimal operation, performance and protection. This unit is the best on the market hands down. It has standby power as well as voltage regulation. This is a must have hands down.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Works perfectly

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Replaces older CyberPower for my main computer. Love the USB ports and flip out panel that makes it easy to read on the floor. Downloaded software and I configured to shut down computer safely after power failure. (it worked when power failed last week). Also have 3 other Cyberpower's running for monitor and network.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Helps work around small outages

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great BBU to get around small outages or power down in case of a longer one. I one on my main computer and another on my networking equipment. In the even of an outage it keeps my internet up for as long as possible. I have bought a few and I would buy more

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    I love the display, and options it has

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This item is perfect and powerful for my new gaming computer, I needed the extra watts to run it power went out while playing

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Does it’s job

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have this setup on my PC with a 3008Ti and a i9-9900k and it draws anywhere from 500-580W so basically the UPS battery is all the halfway mark under load so that’s good to know

    I would recommend this to a friend
  • Rated 2 out of 5 stars

    Battery lasted less than 2 yrs, warranty no help

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Battery in the unit lasted less than 2 years. The UPS started alarming and I got the E21 Battery Output Short Fault code when I ran the self test. It says it has a 3yr warranty so I reached out to CyberPower support to see what they can do. Unfortunately they said I had to ship the entire unit to them at my cost (which was like $70). I asked if they could just ship me the battery so that I can replace it and they said they need the entire unit. Well I ended up buying new batteries on Amazon for less than $50 and they now work fine. In summary, the original batteries didn't even last 2 years and the warranty is not helpful. I also have an APC UPS and so far its lasting longer.....not sure how good their warranty is.

    No, I would not recommend this to a friend
    • Brand response from TechSupport
      Posted .

      Hello rchong, sorry for the trouble, and thanks for the detailed notes. E21 = Output Short, which typically points to a downstream device/cord issue or, in some cases, an internal output-stage fault. Installing new batteries can clear the alarm temporarily, but it often doesn’t address the root cause if the short was detected on the UPS output path rather than the battery pack. That’s why our recommendation is to replace the unit to prevent the issue from recurring and to ensure the UPS meets safety/compliance standards after inspection.
      Regarding the warranty process, our policy requires the original product to be returned to CyberPower. Once we receive your unit, we’ll ship out a replacement.
      We still want to make this as smooth as possible for you. We’ll reach out through your open case to coordinate and process a warranty replacement UPS for you. CyberPower