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Customer Ratings & Reviews

Customer reviews

Rating 4.7 out of 5 stars with 983 reviews

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  • 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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96%would recommend to a friend

Customers are saying

Customers have good things to say about the 750VA Battery Back-Up System's compact size, price, and the number of outlets and USB ports it offers. It is easy to set up and provides reliable power protection during outages. However, some customers have concerns about the battery life and the beeping sound it makes.

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 1 Showing 1-20 of 983 reviews
  • Pros mentioned:
    Usb ports

    Rated 5 out of 5 stars

    CyberPower - 750VA Battery Back-Up System

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

    When my eons-old UPS unit's 2nd battery finally gave out, I found out that UPS was obsolete and a replacement battery cost half as much as a brand new UPS. So I took the opportunity to buy the CyberPower 750VA model; it's an upgrade and has worked flawlessly for me. The number of outlets (two of which are widely spaced to accommodate AC power adapters and two USB charging ports. The ability to communicate the status of the UPS to the computer (via the the PowerPanel Personal software) is another plus for this unit.

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

    Second unit for additional location

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

    The second one of these that I’ve purchased. I have one for my primary home which has been working very well, but I needed one for the cabin in the mountains. We get a lot of short, duration power outages up here in this unit of protects all of the equipment and keeps the Internet connection and Wi-Fi going during the power outages.

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

    More Power than I was expecting

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

    I have a very tight media access port in my new home, so I needed to find the slimmest UPS within the dimensions to fit into my space. This unit is PERFECT in that regard. I was expecting that by going with a small profile unit, my backup power times would be challenged. Much to my surprise, when I needed it for the first time I discovered that it would keep my vital systems up for 90 minutes. This includes my optical modem, router, switch, a video hub, home automation hub and charging power to my alarm panel. My expectation was to get at least 10 minutes based on the 750 VA ratings and posted reviews. I am very pleased with this unit.

    I would recommend this to a friend
  • Pros mentioned:
    Compact, Easy setup

    Rated 5 out of 5 stars

    Compact and easy to set up

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

    Very compact and easy to set up. Got it to protect my ps5 and Tv from outages.

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

    There is a very useful label on the box

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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, Slim and light. When you actually go to teh store or see teh box in person, there is a very usefull table on top (and also on other units by CyberPower and others) that simply shows examples for number of hours for a typical Cable Modem, Wireless router etc.. so you can actually compare. I could not find this table anywhere online or in the manufacturer website - just on the boxes in the store. Odd Anyway, This is the most amount of hours per $ in Best Buy for this price category. This is my 2nd Cyber Power and 4Th UPS and it is a great thing to have.

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

    Rated 5 out of 5 stars

    Must have and work great!

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

    So far so good. Lately we been getting mini surges of power off then right back on. My father in law who did electronic type of work for the local county told me to get these for major equipment like my xbox series x, our computer and camera system as this type of outage is really bad for this type of stuff. Will alrdy we had power surge and we didnt even realize it happened right away as our tv and my xbox never even flickered!! Kept it all on without a hitch. Gave me time to shut it all down and not cause a issue. Never lost wifi signal as it kpt that going as well which is great when all this stuff has to reboot had we not had it protected. These def work! And this size is great for things like mentioned above! Mind you i have one in living room, mancave and my wifes girl cave protecting all important electronics! Father in law says these are a must have and after 40yrs of experinece i dont doubt him!

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

    Rated 5 out of 5 stars

    Works great and fits nicely in my 30" cabinet

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

    Bought this to put in my small IT closet in my home. Using a Lagrand On-Q 30 inch cabinet. Fits nicely in the bottom and so far we have had a power outage and it did a great job.

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

    Rated 5 out of 5 stars

    Just what I needed

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

    Exactly what I wanted for my particular need. I just wanted to plug in my DirecTV Genie to battery backup so that if we have brief power flashes it doesn't have to completely re-start. That way recordings won't be interrupted, etc. Have it sitting behind my TV and it fits perfectly with the narrow profile. Has spacing to allow for a couple large plugs.

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

    perfect battery backup

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

    replaced an old APC battery backup that was about 15 years old with this CyberPower 750VA and it works perfectly. No longer does the thing beep and shutoff every few days. The spacing for the plugs were perfect to fit laptop, printer, router, modem, monitor and Alexa. It's slim and fits perfectly against the wall between my desk. Hopefully this will last me another 15 years like my old one.

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

    Backup surge protector

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

    It is nice. The only down side is the battery side will only let you plug one big item in. But i believe that could be because of the outlets them selves. If in a house it may be better. But in an apartment complex not so much. I feel it should be a little better for the money.

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

    Rated 5 out of 5 stars

    Battery back upp]]

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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.

    Much smaller than my previous back up battery. Easy to install

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

    Great small UPS unit.

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

    Doesn't get much simpler than this. Great spacing on the outlets. Plenty of battery outlets too. I have this setup for my network switch and Pi DNS. Haven't had power go out yet to test but don't see a d issue.

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

    I’m not Shocked!

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

    It’s a well built safety for our main entertainment circuit. I almost never loose power so I just need protection like this provides. It’s spaghetti wires in my photo, but out of sight out of mind. I have used it for about 1 year now.

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

    perfect for in wall media cabinet

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

    Needed a small UPS for my in wall network, but the wall is only 2x4 so it had to be narrow. This worked beautifully!

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

    GREAT PRODUCT

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

    Great Product/ battery backup. Saved my valuable electronics from power surges.

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

    great backup unit

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

    this was bought to protect and power my cable modem and router only. seems to be working great so far.

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

    We love it

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

    Exactly what we need a small and practical surge protector.

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

    Solid product, would recommend

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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. Does what I need it too. Had zero issues and easy to understand how to use.

    I would recommend this to a friend
  • 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:
    Power outage protection

    Rated 5 out of 5 stars

    Nifty little useful guy

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

    A great thing to have if you only have a few things you want to keep running in case power goes out. I would only connect a computer and maybe two or three other less power hungry devices. Still, much better than running them on just a surge protector or power strip. You can also hook it up to a computer via USB and use cyberpower's personal powerpanel software to monitor all your devices power usage, set scheduling options, volume, etc.

    I would recommend this to a friend
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