Appliances Presidents’ Day SaleEnds 2/25. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Gift Ideas
Main Content

Customer Ratings & Reviews

Your price for this item is $84.99

Customer reviews

Rating 4.7 out of 5 stars with 1780 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

95%would recommend to a friend

Customers are saying

Customers have good things to say about the 650VA Battery Back-Up System, especially its long battery life, overall performance, and ease of use. Many appreciate the reasonable price and adequate surge protection, as well as its convenient size and handy USB ports. Some customers have noted minor issues such as a slight humming noise and, in rare cases, random alarm activations. A few have mentioned its weight and isolated incidents of overheating.

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 68 Showing 1,341-1,360 of 1,780 reviews
  • Rated 5 out of 5 stars

    Worth the money

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Still using almost 2 years . Does it work when needed specially help Electricion against power fluctuations

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

    So far so good

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

    So far so good. Item seems to work as stated. No blackouts yet. Fast delivery and arrived in good shape.

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

    Great product. A life saver

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

    I recommend everyone purchase on of these to save your work. Nothing worse than losing work during power bumps.

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

    Perfect for game console and TV.

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

    Got this for game console and TV to prevent loss of power shut downs. This provides plenty of time to shut the system down correctly.

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

    Great battery backup for small pc

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

    Great lil battery backup for a small desktop setup. Allows for 20-25 minutes of runtime on the unit we had plugged into it

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

    The battery backup installed fine.

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

    I won't know how good it is until we have a power outage. Call me in about 5 years and I will tell you how good it is, or was.

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

    Surge protector/battery backup.

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

    Functional and affordable. Local store did not stock this item, so I had to wait several days plus an extra trip of 45 mi. to pick it up.

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

    back up battery system

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

    best back up battery system out there. Better than most brands

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

    Great value for the money

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

    Thought about getting APC but Cyberpower was second choice. This works great during all this work from home time.

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

    Does the job.

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

    Does the job. It replaces a 9 year old battery back up that has a broken on-off button.

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

    When power dies

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

    Good value, easy to install. Needed to help mom when power dies.

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

    UPS Battery

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

    Works good, efficient and pleasing to look at. Would buy again.

    I would recommend this to a friend
    • Brand response from TechSupport
      Posted .

      Glad to hear that the unit is working as intended. Thank you for your review! CyberPower

  • Rated 5 out of 5 stars

    Heavy duty

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

    This item has been working wonderfully. This item is heavy duty and needed for your home.

    I would recommend this to a friend
  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    Compact Unit for Basic UPS Needs

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

    I have different UPS units for different situations. Here, I needed a compact unit with the plugs on top with moderate power capacity. I also didn't need any display information here - just power for smaller devices when the power goes out. This hit all the right features at a good price point for the amount of battery capacity. It's a good buy.

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

    Wonderful battery back up

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

    Our back up battery died and we needed a new one. The price was right and we bought it.

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

    Cyber power

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

    Cyber power makes a good product and this was priced for a quick replacement after a failure an older one

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    Nice price

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

    So far so good, of course we haven’t lost power since I purchased this item. Go figured

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

    Disappointed

    |
    |
    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I thought this UPS was great at first. It seemed to do what it was supposed to do. I have two of them to help manage the brownouts that we get. However, recently, one of them failed miserably. The power went out and it kicked in for a while. I turned off my connected equipment with no problem. I turned off the beeping alarm and thought that was that. The power came back on and all seemed well. However, one night the battery suported side just went out, everything thing plugged into that side was off. I reset it to turn it on, but wondered why it was off. The power had not gone out! Then it happened again for no reason. Then, we had a brownout, lasted less than 5 seconds. Thing started beeping and everything connected to battery side lost power again. Now the battery side doesn't work unless the unit is plugged in, so I no longer have a UPS. It's been less than two years with this thing. I'm very disappointed and will be looking for a different longer lasting brand.

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

      Sorry to hear your UPS is having issues. It sounds like the internal battery may be failing, though the units do have a 3-year warranty from the date of purchase that covers the internal battery as well. If you can contact our Technical Support team at 1-877-297-6937 and select option 1, we may be able to replace the unit for you under warranty. Thank you for your review! CyberPower

  • Rated 5 out of 5 stars

    So far so good

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

    Backs up my server. Love that it has the USB connection to alert the server to shut down safely when power gets low.

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

    It's a UPS.

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

    Well, we haven't had an outage since purchase, so I can't say how well it does what it's supposed to do, but the battery rating for the price can't be beat, and I don't have any complaints at this point.

    I would recommend this to a friend