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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 1781 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 84 Showing 1,661-1,680 of 1,781 reviews
  • Rated 4 out of 5 stars

    Great price for backup battery

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

    Had several severe storms recently with power outages and it’s worked great

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

    is a ups

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

    ok so far works when power is out power have not lost power

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

    Upc

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

    Great product. Good price and warranty. Rio hondo storr

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Good performer, but falters

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

    Doesn't handle the power draw demands from a Mac Pro at startup well, but does just fine after everything is running. My APC 550VA never stumbled at startup like this does (gives alert that there's battery drain occurring during startup), but the Mac Pro starts and then has no issues thereafter.

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

    Operates as expected.

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

    Operates as expected. Replaced failed unit. Expect it to last.

    No, I would not recommend this to a friend
  • Rated 4 out of 5 stars

    what i went to get

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

    good service in this pandemic state at this date in time

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

    Works well

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

    Works well. Used to backup wifi router and office printer /fax

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

    Is ok so far.

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is the second one I buy. Not much to say so far.

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

    Nice hone UPS.

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

    Works well for a home office. Keeps my modem, router backed up.

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

    Great start to protect my electric .

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

    Good price . Tested read instructions all perfect to go.

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

    Rated 5 out of 5 stars

    Back up for my security system and cameras

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

    The Cyperpower 650 gives me at least 3 hours of power for my Simplisafe tower and cameras.

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

    Great

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

    Good for router, computer & tv. Wish it had more than 1hr capacity.

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

    Good price for power backup

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

    Using for power to internet modem, router and VOIP modem

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

    Good for low use

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

    This product is a good product and deserves a favorable review.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Eh

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

    We’ve had it for less than a month. Power went out during the recent winds. It turned off. It did work when we turned the power off manually a week before for some work, so no clue why it stopped this time. Gonna have to exchange it.

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

      If you need any assistance from our support team, please feel free to reach out to us at 877-297-6937. We'd love to be of assistance. Thank you for sharing your review! CyberPower

  • Rated 4 out of 5 stars

    Great back up for price

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

    Small size with long back up time could use one more outlet

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

    Rated 5 out of 5 stars

    Easy to install

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

    Plugged the compute and other equipment in and turned the Battery back-up system. Everything works fine.

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

    This is a good contingent when power outage happen

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

    I bought this because I would have power outages and wanted to protect my electronics. So far its helped save my electronics from some power outages I've had. Also it notified me when I was overloading the unit. So in all it was a great purchase. I got it on sale too.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Mid but good enough

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

    Had it charged for more than 8 hours but the battery didn't work

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

      We are sorry to hear that about your unit. The unit comes with a 3-year warranty from the date of purchase. Please reach out to our Technical Support team at 1-877-297-6937 (press 1) and we'd be happy to assist. Thank you for your review! CyberPower

  • Cons mentioned:
    Weight

    Rated 4 out of 5 stars

    Love it

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

    I would recommend this is life saver. Good for if you have a fish tank. Very heavy

    I would recommend this to a friend