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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 1780 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 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 48 Showing 941-960 of 1,780 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Great for the price

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

    The battery back up system is great and I have it powering my modem, switch and routers

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

    Rated 5 out of 5 stars

    great for backup if electricity goes out

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

    Purchased backup battery to help with computers, rotor and wifi.

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

    Just right

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

    Just what I needed for my internet back up power supply. Hopefully I won't need it, but I feel better knowing it is in place. A good price as well, I think.

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

    Rated 5 out of 5 stars

    Great Product

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

    Very reliable battery and power efficient. I would recommend this brand to anyone.

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

    Rated 5 out of 5 stars

    Good Backup Power If You Need It.

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

    AS of Today The Unit Is Working Fine, AND GIVES ME PEACE AND MINE , if I LOST POWER.

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

    Rated 5 out of 5 stars

    Works as promised

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

    Keeps my computer from flickering from my mini fridge. Easy to use.

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

    Rated 5 out of 5 stars

    Great unit

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent battery backup system unit. Works very well.

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

    Rated 5 out of 5 stars

    Great for cctv

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

    I use these all the time work great will continue to use with all new install

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

    Rated 5 out of 5 stars

    Awesome

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

    Works like it should and protects everything that is connected to it.

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

    Rated 5 out of 5 stars

    It’s a power 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.

    I went for a power back up. This is what it says it is and works as it says

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

    Rated 4 out of 5 stars

    We are reconnected to the internet.

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

    It works. Not sure what else to say? It is a background piece of equipment that powers our router in order to remain connected to the internet.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    Keeps powered

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

    This is a great surge protector. Keep buying it and using it

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

    Rated 5 out of 5 stars

    CyberPower 650VA Battery Back up System

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

    Everything that has been said about this backup system is true.

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

    Rated 5 out of 5 stars

    CyberPower Back-Up System

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

    Perfect for all uses. Good quality and performance.

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

    Rated 5 out of 5 stars

    Good ups for the price

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

    Purchase this to protect our PCS at the office it does what it's supposed to.

    I would recommend this to a friend
  • Cons mentioned:
    Alarm

    Rated 3 out of 5 stars

    Not even 3 months and problems

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

    I've had these battery back ups before, but this one I've had less than 3 months and it randomly sets off a screaming alarm and the light blinks. I have to turn it off, unplug things then reset and turn it back on before plugging things back in. First time, okay, maybe a fluke, but it has done it 3 or 4 times already, I think it's time to take it back, must be a dud, the others I have had lasted for years and didn't do that.

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

      Sounds like the internal battery may be faulty. Please reach out to our support team at 877.297.6937 and we'd be happy to assist. We look forward to hearing from you! CyberPower

  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Good product for computer protection

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

    Delivered promptly and as ordered. Great product for the money

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

    Rated 5 out of 5 stars

    Solid performer

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

    Safeguards important electronics - simple set-up - no problems

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

    Rated 5 out of 5 stars

    battery backup

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

    I was nervous at first but it's a great battery backup.

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

    Great Backup

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

    This is a great product to keep my system up and running. You can choose to have it in place all the time, to have your equipment safe and protected with an instant back up power in case of a power outage. Or have it charged and put away for those times when the light go out as long as you recharge it every 3 months you should be good to go. It is quite heavy though.

    I would recommend this to a friend