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Customer Ratings & Reviews

Your price for this item is $84.99

Customer reviews

Rating 4.7 out of 5 stars with 1772 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

95%would recommend to a friend

Customers are saying

Customers are pleased with the 650VA Battery Back-Up System, especially the battery life, overall performance, and ease of use. Many appreciate the reasonable price, adequate surge protection, and convenient USB ports. However, some customers have noted a slight humming noise and a few have experienced random alarms. A few others mentioned the unit may be a bit heavy.

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 17 Showing 321-340 of 1,772 reviews
  • Pros mentioned:
    Surge protection

    Rated 5 out of 5 stars

    Safely of our electronics critical.

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

    Peace of mind knowing that our electronics are protected. We purchased three for the sections needed.

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

    E battery bank

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

    Very handy as Edison outages often in my neighborhood with this E battery Bank I never loose my shows

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

    Rated 5 out of 5 stars

    Just what the doctor ordered

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

    A surge blew up my printer. Rather than getting another cheap surge protectorI went with this. The instructions day to put laser printers in one of the four unbacked up outlets so I did. But I also have a home server and I lucked out with the surge. Now it is plugged into one of the four back up power outlets.

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

    Rated 5 out of 5 stars

    Right size UPS at a good price

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

    Charged the battery, plugged it in and it has been working great. We have had a couple of short duration power outages and the internet continues working. We have not had a long duration outage to see how long it will keep the wireless internet working. But, so far, so good.

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

    Great Battery Back-up with USBs

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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 one of these last year and it worked great... So when I needed another one, I bought another CyberPower 650VA. The new one I just bought is NEW & IMPROVED because it now has 2 USB Ports in addition to the plug-ins.

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

    Rated 5 out of 5 stars

    CP650VBBUS

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

    Looking for a surge protector / battery back up / UPS and this one was a great fit. Easy directions for set up (Charging for 8 hours prior to use, that's what the directions say) I hope that I never have to use it but it is charged and ready.

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

    Great little backup battery unit!

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

    I have had nothing but success when it comes to CyberPower battery backup UPS systems. I have been using their products for nearly 20 years and am avid user/supporter of their equipment! This little guy works great for light loads and I highly recommend it due to its smaller size and lower cost!

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

    Great UPS at great price

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

    This UPS has been a very good addition to my system. It has plenty of outlets, just take note of which ones are battery backup and which are just surge when plugging in your system. There is also the Powerpanel software to load that will shutdown your system for you if it detects a loss of power.

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

    Rated 5 out of 5 stars

    Perfect.

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

    This is great. I was hatching eggs in the incubator and the power went out very briefly. I panicked that it would happen again with all the storms we’ve been having so I ran out and purchased this. It was an excellent purchase that was there when I needed it! It’s also being used now for the brooder.

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

    Rated 5 out of 5 stars

    One of the best battery back up out there

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

    I bought this battery back up system over a year ago and it has survived two power outage and still running strong. I never had to replace the battery yet. It has enough ports to do most things for a regular business office.

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

    Always necessary

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

    We had gone through 3 total blackouts in 1 week at night in humid weather. Couldn't stand the issue of not having a single AC power source to use flatten our adjustable bed frame. Bought 2 of these, 1 to house the modem and router (in case we get lucky and internet still works) and the other for our bedroom to allow us to flatten the adjustable bedframe then allow us to power a fan for even a short period of time. Luckily, we haven't had to use these yet but I have purchased these for clients to use at their desks and can attest to it working great. Providing those extra minutes you need to power your hardware down. In our case, to power essentials when an inconvenient power outage occurs at night. Regardless of what brand you buy, I recommend you buy battery backups for your home and business.

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

    Rated 5 out of 5 stars

    A True Fish Saver

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

    Great product. Easy to set up and use. It be nice if it had status indicators with load and voltage information, but for my purpose it’s not too important. I’m using it to keep the water pump working on my fish tank during power failure.

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

    Rated 5 out of 5 stars

    Good value battery backup

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

    Use several battery backups in an office. Have had some older ones go out and buying a replacement battery is more expensive than buying one of these new. These were a good value. Have more than just this one and they have been going for awhile. Would recommend to others.

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

    Rated 5 out of 5 stars

    Great protection

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

    Needed to protect equipment from surges including computer and monitors. Perfect set up Also have for my high end TVs

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

    Rated 5 out of 5 stars

    Great for areas that get power flickers.

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

    Hooked it up to my internet modem. Now those pesky power flickers doesn't drop my internet.

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

    Rated 5 out of 5 stars

    Fewer Reboots

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

    We bought one for our tv and TiVo and another for our modem / router and desktop. The battery backup provides constant power and we have no more long reboots after a short power outage. Wish we had done this a long time ago.

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

    Rated 5 out of 5 stars

    Great value

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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, good price. Have used this brand for the past 20 plus years with no problems.

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

    Rated 5 out of 5 stars

    Thank you

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

    I love this power saver. It save me on a rain day . Ilost my power 4. 2 hours and i keep in contact with help.

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

    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.

    Works and functions like it should. Like many battery back ups, it has one side that is surge protected only and another side that is surge protected and battery powered. Not a whole lot to say. Looks good, it's made by a great and awesome name Cyberpower. It will do the job you need it to do.

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

    Rated 5 out of 5 stars

    Pellet stove backup power.

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

    I purchased this item as a source of alternate power for my wood pellet stove. It performs this function perfectly at a very reasonable price from Best buy. It is recommended by the manufacturer of my pellet stove Quadra Fire.

    I would recommend this to a friend