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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

Pros mentioned filter

Cons mentioned filter

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 29 Showing 561-580 of 1,032 reviews
  • Rated 5 out of 5 stars

    Works fine so-far!

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

    Like the compact size and lighter weight than most. Gives some room for AC/DC cubes.

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

    Rated 5 out of 5 stars

    This was a replacement for one that died

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

    I have purchased the same brand before and they stand behind there products.

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

    Rated 5 out of 5 stars

    Great battery back up for what I need!!

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

    This battery backup works great and is very easy to get set up!!

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

    Rated 4 out of 5 stars

    keep cordless phne working

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

    I use this to keep my UVERSE modem and a cordless phone active during a power failure. I get about 4 hours backup for my setup

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

    Rated 5 out of 5 stars

    Good product

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

    I buy this one for the ease of mounting. It can be mounted in either direction

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

    Rated 5 out of 5 stars

    Just the right fit for our magnetic door system...

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

    Great product, easy set up. Have one to back my computer as well.

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

    Rated 5 out of 5 stars

    Great product

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

    I have several in use in my home. I have been using them for at least 14 years.

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

    Rated 5 out of 5 stars

    Great back up device

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

    Easy to setup. Great peace of mind for an area that losses power often

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

    Rated 5 out of 5 stars

    Recommended

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

    Works perfect I have no complaints about this product I would buy another

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

    Rated 5 out of 5 stars

    Works Great

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

    I bought this for a work area computer, printer and displays. Works great.

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

    Rated 4 out of 5 stars

    no surprises

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

    I have used this product before for many different applications and have always found that the product exceeed my expectations.

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

    Rated 5 out of 5 stars

    Good product!

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

    Perfect for the job! It has already saved us from a lightening storm!

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

    Good for controlled shutdown...

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

    Good for a controlled shutdown of home server during power outages + buffering during power fluctuations. Small and inexpensive way to allow home server to shut down when the power goes out, and can be configured to have some juice left to charge phones and tablets if the power stays out for a longer time. Not trying to keep things running, so don't need a lot of power.

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

    Rated 4 out of 5 stars

    Works As Expected

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

    This battery backup works as expected. I purchased it to replace a similar CyberPower unit that reached the end of its life.

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

    Rated 5 out of 5 stars

    So far so good

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

    Does what is supposed to do. Got it on sale and couldn't pass it up

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

    Rated 5 out of 5 stars

    The right device for the job

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

    Excellent value for an UPS. Positioned to protect a TV and laptop computer.

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

    Rated 4 out of 5 stars

    Nice Back Up

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

    I've used these for years and they work great. The batteries used to die after 3 years, but now they seem to go for 4.

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

    Rated 5 out of 5 stars

    Works as described

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

    I have had multiples of this item and they always operate as expected.

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

    Rated 5 out of 5 stars

    Great power outlet

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

    I will recomended it protection for your electronics

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

    Rated 5 out of 5 stars

    Works well

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

    It works well, does what it was meant to do at a reasonable price.

    I would recommend this to a friend