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Customer Ratings & Reviews

$99.99

Customer reviews

Rating 4.7 out of 5 stars with 1050 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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Cons mentioned filter

96%would recommend to a friend

Customers are saying

Customers frequently mention the 750VA Battery Back-Up System's great size, reliable battery life, and overall performance. Users appreciate its ease of use, excellent value, space-saving design, and adequate surge protection with plenty of outlets. While some find the plug spacing a bit close and the unit somewhat heavy, the noise level is generally acceptable. Overall, the positive aspects of the product appear to outweigh the minor drawbacks.

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 42 Showing 821-840 of 1,050 reviews
  • Rated 4 out of 5 stars

    Fine UPS

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

    Does exactly what you want out of a UPS. Sockets are a little close together, but acceptable for the form factor.

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

    Rated 5 out of 5 stars

    Good value

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

    Comes with usb ports. Tested during unexpected power outage and lasted over an hour with 1 wide screen, 1 ultrawide screen, router (Internet was still working), and a laptop charging. Enough time to get some workload out of the way while waiting for power to come back.

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

      Hello Robert. Glad to hear that the unit is working as intended. Thank you for your review! CyberPower

  • Rated 5 out of 5 stars

    Battery back up

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

    I bought two of these and when my power goes out in my house my room stays lit and nothing has to be rebooted. Would recommend recommend to all.

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

    Rated 4 out of 5 stars

    Good battery backup for the dollar

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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 this battery backup because I live in a area that gets power outages approximately two to three times a year and the last one we had frayed my computer. Show I to buy a new computer. It has a app you can install on your computer and have shut down your at correctly at given time like 10 minutes after a power outage. Haven’t had a power outage yet, put I feel comfortable that it with do what supposed to.

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

      The CyberPower SL750U uninterruptible power supply (UPS) system provides surge protection for lightning-induced surges and other power events that can damage electronic equipment. This unit delivers enough battery backup to connected devices during a utility power failure, so you can perform a graceful shutdown to protect against the loss of data and damage to valuable electronics including computers, gaming consoles, and home networking equipment. Thank you for your review! CyberPower

  • Rated 5 out of 5 stars

    0wner

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

    found the battery very close to me right on time

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    disappointed

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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 wanted to try and alternative to APC. This was a bad decision. Battery only lasted a couple months and despite how you configure the software, it still alarms with a power outage and does not silence alarm when power returns. frustrating with the frequent brownouts we experience.

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

      Hello chv3, It sounds like this is just not the correct unit for your needs. This UPS only offers battery backup with it's standby topology. When it sees a power event, like a brownout, it will simply disconnect utility power and switch to battery mode. Frequent use of the battery will prematurely deplete the battery. If you get frequent brownouts then a Line-Interactive UPS that offers Automatic Voltage Regulation (AVR) would better serve you as it can boost brownouts to a normal voltage rather than switching to battery mode to preserve the battery's useful lifetime. As for the alarm, the only alarm that cannot be silenced is the overload alarm. When the unit switches to battery mode it begins to output a simulated sinewave output from the UPS, some devices need pure sinewave power, when those devices see the simulated or stepped sinewave output they will draw more power to cover for the small gaps in the simulated sinewave waveform to make up for it which may be triggering the overload, if you are close to the maximum capacity of the unit in line mode then you should consider either a PFC UPS or simply a bigger AVR UPS to work with your equipment, or even just remove a non-critical item from the battery supported outlets. CyberPower

  • Rated 5 out of 5 stars

    Small but mighty

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

    Perfect NAS companion with a small footprint and reliable battery responsiveness.

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

    Excellent

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

    Using it with a 3d printer to prevent failures due to power flickers. Works perfectly for that purpose.

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

    Nice Unit affordable price

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

    Great unit! Makes no noise and charged up in a couple of hours. I unplugged the unit to test it and all connected devices didn't blink a bit

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

    VOLTAGE ZAPPER

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

    KEEPS THE COMPUTER GOING WHEN THE ELECTRICITY STALLS

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

    Awesome Back Up

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

    great item helps a lot for any power flickers or breaker pops.

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

    The best

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

    Most amazing part of pc i like really like it thank u best

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

    Never know when a blackout occurs

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

    A must have for any home; whether you have an office or just your regular electronics.

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

    Battery Back-up

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

    After a couple of power outages that occurred while I was online, I decided the it was time for a battery back-up system. This one fit the bill. My only issue was the CyberPower notification app did not work well on the Mac mini.

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

    Perfect fit

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

    New house with all the networking cables in the basement. This fits inside the cabinet and allows my internet to work if the power goes out.

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

    Great Backups

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

    With frequent power outages, a backups is a must. No more worries about desktops rebooting in the middle of doing something important.

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

    excellent 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.

    does what i bought it for, protecting my tv.. A good buy for a little protecting of a costly TV

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

    Solid backups

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

    Had it for over a year now. Survived my toddler quite well

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

    MICKEY

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

    recommended by a relative that knows better about computer accessories then me.

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

    Durable and effective

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

    Not my first purchase of CyberPower. I bought the same unit as my first site due to my enjoyment of its quality.

    I would recommend this to a friend