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Customer Ratings & Reviews

$84.99

Customer reviews

Rating 4.7 out of 5 stars with 1790 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

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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 19 Showing 361-380 of 1,790 reviews
  • 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:
    Battery life

    Rated 5 out of 5 stars

    Worth it!

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

    Had to buy another one because my last one died (after 12 years, good run!). Great to use with my TiVo or router to keep them from having to totally power cycle when the power dips.

    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:
    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
  • 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:
    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

    Great protection

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

    Needed to protect equipment from surges including computer and monitors. Perfect set up Also have for my high end TVs

    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:
    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

    A must have

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

    This is my 2nd time buying this, a must have if your like me and run a home business with multiple computers running at the same time.

    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

    Thank you

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

    I love this power saver. It save me on a rain day . Ilost my power 4. 2 hours and i keep in contact with help.

    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:
    Performance

    Rated 5 out of 5 stars

    CyberPower 650VA Battery

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

    I have no idea whether these (I bought two) are working WELL or not. They are working though. They are very convenient as outlets also.

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

    This Surge Protector has worked perfectly

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

    This Surge Protector has worked perfectly. We have regular Power Surges and Power Loses in our small town with all the power lines still hanging up in Telephone Poles. I work as a Realtor and Photographer and must be connected at all times of the day. I have not lost any of my Contracts, Videos or Photographs during Power Outages. I like the smaller size so it can sit right up on the desk and I plug my laptop into it.

    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
  • 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:
    Performance

    Rated 5 out of 5 stars

    Great for areas that get power flickers.

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

    Hooked it up to my internet modem. Now those pesky power flickers doesn't drop my internet.

    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:
    Performance

    Rated 5 out of 5 stars

    Quality battery backup for computers

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

    This backup is slightly larger than I expected, but it works great. I can depend on it during any power failure to keep my TV, satellite, and computer on line. I also used it to keep my automatic pet feeder operating while I was on a vacation.

    I would recommend this to a friend