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Customer Ratings & Reviews

Your price for this item is $84.99

Customer reviews

Rating 4.7 out of 5 stars with 1772 reviews

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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 are pleased with the 650VA Battery Back-Up System, especially the battery life, overall performance, and ease of use. Many appreciate the reasonable price, adequate surge protection, and convenient USB ports. However, some customers have noted a slight humming noise and a few have experienced random alarms. A few others mentioned the unit may be a bit heavy.

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 19 Showing 361-380 of 1,772 reviews
  • Rated 5 out of 5 stars

    Love it. I have 2, and they are indispensable.

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

    A great UPS at a reasonable price. Protects your TV's, computers, modems, etc. In Florida, think of the times that a lightning strike has caused a momentary power loss, that forces you to do a complete reset. All that is a thing of the past. Pay attention to how and where you are going to put it. Sometimes a smaller flatter UPS with the plugins on the top might be a better choice if it needs to stand behind the furniture.

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

    Rated 5 out of 5 stars

    Great Battery Back Up System

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

    With the storms that roll through Tampa and frequent power outages, this battery back up is just enough to keep my system running until I can either save and shut down properly, or get to my office to perform the shut down. I have this model on 30+ workstations - highly recommend!

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

    Rated 5 out of 5 stars

    Perfect Function in Lighting Storm & Loss of Power

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

    Yeah, It does what it is supposed to do. It guarded my computer, and supplied backup power for well over a half an hour. Also attached to it are my scanner, external hard drive, and monitor. This review comes after brief ownership. Very Happy thus far.

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

    Rated 5 out of 5 stars

    Great Product!

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

    We got this to replace one exactly like it that functioned well until a lightning strike took it out after 12 years - but it saved the PC before failing! Lifetime warrenty, too.

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

    Rated 5 out of 5 stars

    Works great

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

    We have quite a few thunder storms, with short electrical outages. My wify router reboots, interfering with phones, tv's, printer and anything else that uses wify. This has solved that problem. Very satisfied and happy.

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

    Rated 5 out of 5 stars

    Good, solid battery back up

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

    Perfect for protecting my laptop and Cable Modem for power outages until I can get my generator started and running. Good value for the money. Not for big Desktop Systems, but excellent for light usage. Recommend for intended use.

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

    Rated 5 out of 5 stars

    Great UPS

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

    Everyone should by one of these Power supply, If sometimes trip your circuit breaker or have minor dips in power this will protect your computer, modem, etc. I recommend it I have had previous ones and they last for years.

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

    Rated 5 out of 5 stars

    Protect from power glitch

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

    We purchased these after a short, quick, power glitch took out one of our computers. It was plugged into a power strip, but that wasn't enough for these quick burst. These little guys advertise they will protect us and so far, they have.

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

    Rated 4 out of 5 stars

    Perfect for modem & router

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

    I’m using this to counteract short power outages to maintain a WiFi network in our home. I have our modem, router, and MoCa adapter connected to the battery backup slots. This should be able to maintain internet in the house for at least 30-45 minutes based on the power usage of my devices. I’ll update my review after our first outage, to effectively provide a more accurate finding.

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

    A nice small UPS

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

    A nice small UPS. I needed one to replace my old UPS as it started going bad. This fits the bill and is almost identical to the one it is replacing.

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

    Rated 5 out of 5 stars

    No more dropped Zoom calls

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

    Immediately went on line after the first power blip of summer hit my house and knocked me off an important Zoom call. Delivery to my front door was a surprisingly 1 day and FREE. Easy to set up, plugged in my router and internet doesn't drop!

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

    Rated 5 out of 5 stars

    nice rugged power backup

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

    Very nice battery backup for our router with extra capacity for other uses. Idea is to not lose our web connection during power glitches. Can also be used for backing up my desktop during critical operating times.

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

    Rated 4 out of 5 stars

    Home office ready

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

    Sufficient plugs, USB ports as well. Easy set up. Tucks under desk nicely.

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

    Rated 5 out of 5 stars

    I trust cyberpower

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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 other cyberpower products and am happy with this one too so far. Using it on modem and router in case power goes out like it often does where I live.

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

    Easy to use

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

    These back ups are easy to use,reasonably priced. I highly recommend them

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

    Rated 5 out of 5 stars

    Good in an emergency

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

    Love it. Keeps everything I need running in the event of an outage. Live in a condo that does not allow generators so we use these to keep the wifi router running and charge phones if needed.

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

    Rated 5 out of 5 stars

    Great Battery Backup - High Price tag

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

    This is a high quality battery backup. It worked well during a power outage. I used it to back-up electronic controls for a hospital bed, I had enough power to lower the bed. This unit price was on the high side.

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

    Rated 5 out of 5 stars

    Long lasting!

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

    I have had great battery life out of the CyberPower line of battery backup systems over the years, I decided to keep using CyberPower, when I replaced a many years old ups. Looking forward to long years of use with this one.

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

    Great product for my need

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

    I bought several of these to mitigate issues we have with intermittent electrical "outages" / blips. Even after installing a generator, the power would go down for 10 seconds until the generator kicks in. I put one in my bedroom, powering TV and other devices, another in TV room (powering TV and cable box), and the third in my utility room to power my master cable connection, internet modem, and VOIP phone. These only need to use battery for maximum of 10 seconds before my generator kicks in. While my Google wifi takes a few seconds to reconnect after generator kicks in, everything else runs perfectly. Great solution to my problem.

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

    Rated 5 out of 5 stars

    Exellente Product

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

    very good I like still working perfect and is very easy to conected with all electronics

    I would recommend this to a friend