Year-End SaleEnds 1/1/26. Limited quantities. No rainchecks.

Skip to content
Main Content

Customer Ratings & Reviews

Your price for this item is $9.99
Clearance
The comparable value price is $19.99

Customer reviews

Rating 4.4 out of 5 stars with 662 reviews

Rating Filter

Rating by feature

  • Quality

    Rating 4.3 out of 5 stars

Pros mentioned filter

Cons mentioned filter

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.
Applied Filters:
Page 1 Showing 1-20 of 197 reviews
  • Pros mentioned:
    Battery life, Charging speed, Portability

    Rated 4 out of 5 stars

    Good product

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

    Needed an extra portable charger and this fit the bill. Nice color choices and I picked blue. Charges my phone with no issues.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Charging speed, Price
    Cons mentioned:
    Compatibility

    Rated 4 out of 5 stars

    Good value, good performance

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

    I purchased 8 of these and 7 out of 8 work to charge up iPhones, adding a full extra day without having to plug the phone in to recharge. Not sure why one won't work with iPhones but it works to charge up iPads and Targus keyboards for iPads. And they're a lot cheaper than Mophie and will work with any usb-chargable device using 2 watts or less.

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

    Rated 5 out of 5 stars

    Dynex - Lithium-Ion Mobile Battery Pack

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

    So easy to use, so convenient when you are away from power sources. Works on my MP3 players, cell phone and camera! I would recommend to others, and I would purchase again. It also recharges as you play your item! Oh and great assortment of colors available too.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Charging speed, Portability

    Rated 5 out of 5 stars

    Excellent Choice

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

    I was pleased to find that it was easy to keep with me and found I had a need for it soon after buying it. It holds a charge for quite a few days and provides a reasonably quick recharge for either my android or my kindle.

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

    Rated 5 out of 5 stars

    Great idea!

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

    This little battery pack works great when unable to plug phone in! It fits nicely in a small bag or even a large pocket for guys who wear cargo pants.

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

    Rated 5 out of 5 stars

    Great for a backup Charge

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

    This item came in handy when I needed it. Charge it up keep it with you when your item needs that additional charge. It charged my cell phone back up to over 85%. It may have been able to charge me up to 100% but it had not been on the charger for a few days. The only down size if you want to call it, is that you do have to recharge it regularly. Even if you don't use it, you will still need to at least put it on charge ever so often because it will loose the charge.

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

    Rated 5 out of 5 stars

    Great Battery for Travel

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

    I bought two of these a few years ago after I noticed my cell phone kept sucking the life out of my battery while I was on vacation. I felt like I spent most of my days just hunting for an outlet so I could plug my phone in! So not a problem now with these fantastic batteries! Charge them overnight and throw them in your backpack/purse and you're good to go. Great size and the bright color means they're easy to spot! Definitely recommended!

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

    Rated 5 out of 5 stars

    Great Battery for Travel!

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

    I bought two of these a few years ago after I noticed my cell phone kept sucking the life out of my battery while I was on vacation. I felt like I spent most of my days just hunting for an outlet so I could plug my phone in! So not a problem now with these fantastic batteries! Charge them overnight and throw them in your backpack/purse and you're good to go. Great size and the bright color means they're easy to spot! Definitely recommended!

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

    Rated 5 out of 5 stars

    Great buy

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

    Purchased this out of a bin of other chargers, and just got it as a back up, without any real thought to quality or anything. But I've used a few times now, and I have to say that I am very impressed by it. It has been able to charge my Galaxy S3 Quickly, and on the fly. And it's able to hold a pretty good deal of a charge. Very impressed by this charger. Couldn't be happier.

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

    Rated 5 out of 5 stars

    Pleasantly Surprised!

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

    I only purchased this because there was a deal for buying 3 phone accessories. I am so glad I did. I never knew I needed one of these, but now I can't imagine not having it. Works great. Charges fast and one charge charges my iPhone 6 from dead to almost full. I use it on the go and even in my house when I don't want to be tethered to the wall.

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

    Rated 5 out of 5 stars

    Great for the price

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

    I bought two of these so I would have a backup for when standing in the long lines at the local theme parks and my kids would run the batteries down on their phones. I have been able to recharge one phone 2 to 3 times off of each charge of the battery pack. Excellent product for the price I paid.

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

    Rated 5 out of 5 stars

    Great product for people on the go

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

    this was a very good buy on sale -- I use it primary to charge my iPhone when out and about. Charges fairly quickly and provides an added sense of security when I've forgotten to charge phone the night before

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

    Rated 5 out of 5 stars

    easy to operate, easy to carry, terrific product

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

    For just over $20 I never have to worry about my battery running out. I can charge it while I sleep, pop it in my purse in the morning and I'm good to go all day. If my phone battery is running low, I plug it in and keep working! Great!

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

    Rated 5 out of 5 stars

    Great Device

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

    Device helps when need a quick charge when no outlets are within reach. Product charges IPhone5 a complete full charge easily without needing itself charged. Price of device was cheapest compared to other brands/mAh.

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

    Rated 5 out of 5 stars

    Great backup power

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

    It charges up very fast and keeps me charged up during my flights. My phone is low before take off, I just plug it into this and leave it in my bag, when I land my phone is fully charged!

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

    Rated 5 out of 5 stars

    works like a champ

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

    Needed a low-cost solution to charge my kids devices while on a long flight. This totally did the trick. was able to charge fully 2 iPods and a iPhone before re-charging this.

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

    Rated 5 out of 5 stars

    Good product and does what it suggests

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

    very convenient product, carries in purse easily and life saver when phone batteryvery convenient product, carries in purse easily and life saver when phone battery almost on shutdown and don't have conventional charger readily available. Just got this a week ago and am liking this alot!!!

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

    Rated 5 out of 5 stars

    Great external charger

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

    This charger is great! I had one before that didn't work correctly after about a month and a half of use, however, this one is still going strong! The charger fits in practically any bag and is easy to take with me. I typically don't use it until my phone is around 30-40% and charges it up to 90-100% every time. The one downfall is that I have to charge it after every use, however that isn't really that difficult to do.

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

    Rated 5 out of 5 stars

    Great portable charger

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

    Charges quickly and lasts a while on one charge. Plugs right into the outlet that I charge my phone on so it’s easy to keep up with it.

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

    Rated 4 out of 5 stars

    great for a quick charge

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

    This is always in my bag and ready to use. I'm happy to say that I almost get a full charge. And the color is great too!

    I would recommend this to a friend