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Customer Ratings & Reviews

Your price for this item is $4.99
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The comparable value price is $19.99

Customer reviews

Rating 4.4 out of 5 stars with 662 reviews

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  • Quality

    Rating 4.3 out of 5 stars

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93%would recommend to a friend

Customers are saying

Customers are delighted by the long battery life and portability of this Lithium-Ion Mobile Battery Pack. Many appreciate its compact size and find it to be a great value for the price. While some users experienced compatibility issues or found the cord length insufficient, the positive feedback on battery life and portability outweighs these concerns.

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 31 Showing 601-620 of 662 reviews
  • Rated 5 out of 5 stars

    Must have

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

    Everyone needs one of these just in case, because you never know

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

    super fast

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

    Has a super fast read/write speed, which is a must have for me.

    I would recommend this to a friend
  • 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.

    Would recommend buying this extra battery capacity to others.

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

    a perfect gift

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

    I liked them so much I purchased them as Christmas gifts

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

    Works good

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

    Works good but takes a little longer to transfer charge.

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

    Great for charging on the go!

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

    Great for emergencies when your device needs some power!

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

    Not great but what can you expect

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

    First it doesn't even tell you how long it holds a charge for. Then I hate the two pieces it's kind of hard th keep up with. I suggest the company should start selling it with a case. Because mine has been stolen

    No, I would not recommend this to a friend
  • Rated 5 out of 5 stars

    Great Electronic device for traveling!

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

    Great for my vacation. Had no problems with the device!

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

    Very satisfied.

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

    Seer previous review of connector cable..............

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Would not charge my phone

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

    I have a Samsung Galaxy S5 and this device would not charge my phone at all. It acted like it was defective, as when I connected it to my phone; there was no indication it was charging.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Poor product

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

    This gadget doesn't have enough charge to give my cell phone one full charge. Best Buy would not accept a return if pkg is opened so I ate the $4.00+. Just don't purchase the item.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    works ok

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

    My husband only uses this charger if he has no other option to charge his phone. It works ok but not great. It is slow to charge a phone and a little bulky in size.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    does not hold up a battery

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

    Even after charging the dynex, it will not even give your phone a full battery charge. But it is the cheapest so you get what you paid for.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    ok charger for emergencies

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

    It gives you enough "juice" for at least an extra hr after batteries are almost out. I use mine on a Galaxy S5.

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

    Did not work with my car's USB port

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

    The battery pack worked fine but it would not charge once I got to my car and plugged into the USB port.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    Works in a pinch

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

    Size and weight are a plus but it doesn't seem to charge my phone as well as other models I have used.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    Okay charger

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

    Does not hold the charge long enough. I was hoping it would charge longer since I work at night

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    It's okcmu

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

    It works fine but in takes over 8 hour to charge. If it would charge faster I would be happier.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    It does what it promises

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

    I don't like the fact that you have to plus the cable in to see if it still has some juice.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    Works fine

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

    Is about the same as the other generic chargers. Wish it didn't require additional cable.

    I would recommend this to a friend