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 45 Showing 881-900 of 1,780 reviews
  • Pros mentioned:
    Price

    Rated 5 out of 5 stars

    Recommended

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

    This is a great UPS for a fair price. Very nice item.

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

    Rated 4 out of 5 stars

    Reliable UPS

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

    Very reliable ups. Plug and play. I use it for my working pc. No problem so far.

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

    Rated 5 out of 5 stars

    Great Product, No Issues!

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

    Product works great and no issues. Easy to use. USB charges items so fast!

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

    Look out for transient voltages

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

    The last storm in my area took out a few items, but my old UPS took it but suffered from a voltage spike.

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

    Rated 5 out of 5 stars

    Works great!!!

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

    Works fine every time the power goes out. It’s used to backup my cable modem & network modules.

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

    Rated 5 out of 5 stars

    it works

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

    I have used several of these over the years and this one works just as fine as the others.

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

    Great backup battery

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

    when the power goes out, this keeps the power on to your computer or what ever else you have plugged into it. Can’t comment on the usb / software diagnostics because I didn’t hook it up. Not much else to say, It’s a backup battery, not that exciting. Adding a subwoofer to it would definitely change that. Maybe next years model? one can only dream.

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

    Rated 5 out of 5 stars

    Backup

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

    Enjoy all the features and the protection against surges it offers.

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

    Rated 4 out of 5 stars

    Battery back up

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

    Wish they would make these things a little less heavy. Also when the alarm goes off you have to shut the entire network down and reboot everything

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

    CyberPower 650

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

    Bought to replace an old APC unit. Has worked as advertised so far - providing seamless power to my home network equipment during a few power outages. The space between outlets is better than many strips, though still won't accommodate larger power adaptors without thoughtful arrangement. Happy with purchase overall.

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

    Rated 5 out of 5 stars

    Good value

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

    Simple to set up and instructions are clear. Good value.

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

    Rated 4 out of 5 stars

    Helpful in a storm

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

    Needed this after a storm cam in a knocked out power. Looking forward to trying it out again for additional life in work tech.

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

    Rated 5 out of 5 stars

    UPS

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

    Works great.--------------------------------------------------------

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

    Rated 5 out of 5 stars

    Great Product

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

    Fantastic Back-up device during public safety power shut-offs

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

    Rated 5 out of 5 stars

    Works great!

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

    Two hours of battery power for WiFi & 2 laptops during a power outage.

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

    Rated 5 out of 5 stars

    perfect for the office

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

    I have not had any issues with the product so far. It is meeting the needs of my office.

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

    Rated 5 out of 5 stars

    Try this

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

    This back up battery system by cyber power was definitely worth it.

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

    Inexpensive battery backup

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

    Inexpensive battery backup with good outlet placement and compact configuration. It fits conveniently out of the way beneath my desk. In the three months I have owned it, it has handled all of the power hiccups in my home office perfectly. (I have not had a complete power outage in this time, so I cannot judge how well it works for a sustained period.)

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

    Rated 5 out of 5 stars

    Easy to set up.

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

    I have purchased several other CyberPower backup batteries and all have worked as expected.

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

    Rated 5 out of 5 stars

    Great unit

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

    This is a great power supply and surge protector for the price

    I would recommend this to a friend