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Customer Ratings & Reviews

Your price for this item is $45.99
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The comparable value price is $64.99

Customer reviews

Rating 4.7 out of 5 stars with 1032 reviews

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Rating by feature

  • Value

    Rating 4.5 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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97%would recommend to a friend

Customers are saying

Customers are delighted by the 650VA Battery Back-Up System's long battery life and reliable surge protection, praising its performance and ease of use. Many appreciate the system's value for the price and convenient size. While some find the unit somewhat heavy, the alarm feature has received mixed feedback.

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 37 Showing 721-740 of 1,032 reviews
  • Rated 3 out of 5 stars

    Expected more

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

    All though i choose the time i want or need but i feel like it lasted less

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

    o no, we lost power....

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

    sick of having your devices shut off as soon as they loose power, or don't have to time to shut them down properly .... well problem salved, this did surge protection and battery back up.

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

    THE BATTERY BACKUP IS DOING ITS JOB

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

    I HAD AN OFFICE EMERGENCY THAT FORCED ME TO HURRIEDLY PURCHASE A NEW BATTERY BACKUP. THE ONE PURCHASED IS MUCH LARGER THAN I NEEDED; HOWEVER, IT WAS THE SMALLEST AND LAST ONE AVAILABLE ON THE BEST BUY SHELF.

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

    great buy

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

    I love Best Buy price matching, but when I went to the service desk, I found that Best Buy was offering a better price than my discount club. It has worked perfectly even during a 10-min power outage that we had recently.

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

    surge protection and backup for power outages

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

    Great size for protection and power backup for those unexpected emergencies. Would like to see a longer cord so unit could be utilized and stored in a hidden area.

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

    Exactly what I need

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

    I am planning on starting my own business so I know this backup will be essential. My work will need to be done regardless of power issues. The extra cost was not bad for the peace of mind I know I will enjoy.

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

    EASY SETUP

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

    MY OLD BATTERY BACKUP - BATTERIES WENT DEAD AND WOULDN'T KEEP BEEPING SO I HEADED TO BEST BUY IN ORO VALLEY AND HAD A NEW ONE WITHIN 10 MINUTES -- REALLY LIKE IT AS IT WAS EASY TO SET UP AND FITS ON THE DESK NICELY

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

    Just Right

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

    I had a cyberpower battery back up for my previous computer and needed one for the new computer because the new computer is a second computer in the home. There is just the right amount of plugs available.

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

    Great small battery pack

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

    It works perfectly to provide backup power to a pair of routers. I wouldn't provide days of backup power but does what's needed over the frequent power dips and short outages that we experience.

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

    Good UPS for Small home PC system

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

    Purchased this for my home computer and network setup. Great price, but ended up returning because the battery size was a smaller footprint than some of the extra batteries I had. Wanted to be able to use batteries I bought for an APC 500 ES that I thought needed batteries, but must have died.

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

    The best battery back-up

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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 bought one cyber power battery back-up to replace at damage one at my office and I end up replacing all just because I really liked the efficiency on this one

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

    CyberPower BB

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

    In my opinion CyberPower makes a better Battery/Backup than any other product. In 2001 I got the privilege of a tour of the plant in Shakopee MN and ever since that tour I use nothing but CyberPower products.

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

    Much needed

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

    I needed 2 of these for my Computers and TV and DVD appliances. I was tired of everything going off every time the power was lost. Now when the power goes out, my equipment stays on. Much needed.

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

    Good if you don't need alot of space

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

    this doesn't have as much power and space as my old one did!

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

    Meets my requirements

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

    Previous battery backup failed and this one was available

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

    Simple to set up and use.

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

    Decided that I needed a UPS after power spikes fried my NUC drive controller. The unit was easy to set up and use, as well as being pretty cost-effective for my needs. Can't give it five stars yet, since I don't know how well it will handle an actual spike... but it seems good so far.

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

    Perfect!

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

    Does exactly what I need it to. Works as advertised. I have a PC that runs security cameras in my house and I no longer have to worry about them going down due to a temporary power outage.

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

    Quality, reliable backup power

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

    I've used previous CyberPower devices and all have met or exceeded expectations. This unit is no different. Perfect for my home office application, with more than adequate protected outlets.

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

    Rated 3 out of 5 stars

    Pretty Good

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

    We have used at least 10 of these at my office. They have all worked great except for one where the battery backup side stopped working after 6 months, but the surge side worked. Otherwise, they have performed well.

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

    Plug configuration is great

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

    This works great for us. We live out and suffer from periodic power outages. Just a flicker but it means the whole tv, video game and cable reset. With this the power can flicker and there is no interruptions. The plugs are laid out so all the odd size plugs will still fit.

    I would recommend this to a friend