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Customer Ratings & Reviews

Your price for this item is $79.99
The comparable value price is $99.99

Customer reviews

Rating 4.7 out of 5 stars with 1028 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 praise the 750VA Battery Back-Up System's compact size, long battery life, and reliable performance. Many appreciate its ease of use, affordability, and the inclusion of surge protection and multiple outlets. Positive feedback also highlights the convenient design and the availability of USB ports. While some users noted occasional noise or alarm issues, the overall sentiment is overwhelmingly positive.

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 2 Showing 21-40 of 1,028 reviews
  • Rated 1 out of 5 stars

    Junk product

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

    When I turn on the vaccum which is powered even on another outlet my 3D printer still being restarted! what's the point to use this UPS?

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

      Hello, The SL750U does not have Automatic Voltage Regulation (AVR). I would recommend a UPS with AVR like the CP1000AVRLCD to resolve the issue at hand (voltage sag on circuit). Thank you for submitting your review! CyberPower

  • Pros mentioned:
    Battery life, Performance, Size

    Rated 5 out of 5 stars

    Excellent choice for small spaces

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

    Was looking for a compact UPS system that could fit in a residential smart panel that only has narrow space to accommodate devices that could power mini pc, modems, vlan switch and other devices in a reliable way. I'm so glad I found this option at a fraction of the price of other compact units costing $100's. Thanks to the battery backup feature, have not had a network loss even though we have had the occasional grid power loss in our community.

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

    Rated 5 out of 5 stars

    Great addition to keep things running

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

    We occasionally have a power blip which takes down everything for a short period of time. I decided to pick up a UPS to help get through this periods without having my desktop and internet go down for these short outages. So I picked up the CyberPower to help with that. It's nice and thin, the power ports are easily accessible and I am able to easily run my desktop, monitors and internet router off of the device. We had one power blip happen shortly after setting this up and it worked flawlessly. Super happy with the result and the price.

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

    Rated 5 out of 5 stars

    Awesome for a 3d Printer!!

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I live in an area that can experience power outages during hurricane season each year. I use this for a backup to my 3d printer. It stops any short interruptions in power from ruining a super long print. It's saved many multi-day prints in the past, and it has continued to work perfectly! I also have my snake terrarium and a few other things plugged into it. Super happy with this. It's also a nice slim unit and slips behind everything so it's out of sight.

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

    Rated 5 out of 5 stars

    Good protection

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

    I got this because the new area I live in has been losing power more recently with the storms. I use my computer for work, school and gaming and it’s so far been working well. I’ve overloaded it a couple times because my pc runs a lot of power usage so it’ll beep really loudly when that happens.

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

    Performs as expected

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

    This UPC performs as expected. Good value for the price. Nice design. Enough outlets for my home office. I only deducted a star due to the unit not having a mute button for the power goes out (didn't think to check before buying) and no info on software to monitor (but customer service was quick and friendly to resolve).

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

    Rated 5 out of 5 stars

    CyberPower - 750VA Battery Back-Up Works and Works

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

    Ok, so here is the real deal: This system battery is solid for the minimum 3 years the package states and there is no indicator light that pops on when the designated back-up outlets (about 4 only) The rest are GFI protected and you can actually test them with a tester from Home Depot to make sure they work. My back up outlets actually worked for about 4 1/2 years, I know this because we frequently have brown-outs. I do recommend this because it does work for the time stated and the price (especially if it's on sale) is the best in town.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Size
    Cons mentioned:
    Noise

    Rated 5 out of 5 stars

    Perfect!

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I got this battery back-up for my new home-built PC. I was very scared when choosing this product because of my investment in my new PC. This worked well for several months with no issues. Just recently, I forgot that I had left my PC in Sleep mode when we lost power in the middle of the night. I was woken up by the back-up battery's loud beeping, even though I was asleep down the hall. I was able to safely save my work and turn off my computer. I would definitely recommend this system. I also love it's slim profile compared to other systems.

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

    Rated 5 out of 5 stars

    Nice compact unit.

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

    I liked that the unit takes up a lot less shelf space than the unit I replaced. You can also use it laying on its side and it's still smaller than my original unit. I am using it for my cable box, TV and audio system backup.

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

    Rated 5 out of 5 stars

    Nice UPS

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

    My ancient APC UPS finally bit the dust and needed replacing. Fortunately, my local Best Buy had a few left on the shelf. This is a bit larger than the one it replaced, which is great. It protects my computer and Internet router and gives them more run time during a power outage. It is a plug and play device. Quick and easy to plug into the wall and plug power cords into it. that quick and I am up and running again. The power glitched once since I installed it. Internet and my computer kept running without even a flicker. CyberPower has a great warranty as well. I am very pleased with this one.

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

    Rated 5 out of 5 stars

    Battery back up

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

    Works great - a good size. Use it to back up my office equipment in case of power failure

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

    Rated 5 out of 5 stars

    Love it

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

    Great battery backup system that has kept my devices running during brief power outages. The system is pretty lightweight compared to other battery backup systems I've owned. The spacing for the plugs is perfect, even larger plugs will fit next to each other. Easy to install, haven't had any issues.

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

    Rated 5 out of 5 stars

    Works well and price point is great

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

    It's been 1 year since I've had this UPS and it is still going strong. It's dealt with a more than a handful of power outages and blips and is still solid. For reference as to what I have attached to it on the battery is my UDM Pro SE and an Aruba 2930M 48port poe+

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

    Rated 5 out of 5 stars

    Easy replacement for existing 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 like the design and specs for the price. Slimmer design than previous Back Up, it fit better in the space. Internal battery is not replaceable by owner, if you that type of Back Up, have more space and be prepared to spend more. This should last several years, so replacing it then will still cost less in the long run.

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

    Rated 5 out of 5 stars

    CyberPower 759VA 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.

    My old battery back-up did not fit in the space provided. This one is slim and has the outlets turned to the side allowing it to fit nicely out of sight. No loss of my internet/wifi during several power outages. This is my 4th CyberPower over ~ 15 years, and all have been excellent.

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

    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.

    Works great, this is the second one we bought for different areas. Slim for small spaces, easy to set up, great value

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

    Rated 4 out of 5 stars

    Good for up to 4 devices.

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

    The alarm sound is irritating. You’ll want to turn it off first thing. This is a great UPS for up to 4 low energy devices such as a TV, streaming device, speaker, and router.

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

    Rated 5 out of 5 stars

    Doing the job 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.

    So far so good. Power went out today with both me and wife working from home. First time with this in place. Kept the router and modem running. Did not last too long with multiple devices plugged in. But we did not get kicked out of calls and that was the plan for this. Be sure to read how to turn off the audible alarm. Once it’s running on battery power that can get annoying quick.

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

    Rated 5 out of 5 stars

    So far so good

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

    This ups has a great design, takes up minimal space with its horizontal type design. Has worked great so far. It replaced another brand that mysteriously would alarm and cut power to everything plugged in even though there was no external power loss to it.

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

    Rated 5 out of 5 stars

    Great little UPS.

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

    I needed something to replace an old UPS and this was the right price and the right size. I like having the plugs on the top instead of on the back. So far it has worked great.

    I would recommend this to a friend
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