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Customer Ratings & Reviews

Your price for this item is $13.99
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The comparable value price is $59.99

Customer reviews

Rating 4.7 out of 5 stars with 1403 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.7 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

93%would recommend to a friend

Customers are saying

Customers have good things to say about the PowerCore III 20K mAh USB-C Portable Battery Charger's long battery life, convenient portability, and compact size. Many appreciate its multiple charging ports, including USB-C, and find the performance and design to be excellent. While some find it a bit heavy, most agree it's a worthwhile purchase.

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 32 Showing 621-640 of 1,403 reviews
  • Pros mentioned:
    Portability

    Rated 5 out of 5 stars

    Nice Overall

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    No issues at all ,i would recommend this product to others.

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

    Rated 5 out of 5 stars

    Small compact

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great purchase. I always take this when traveling. No need to worry about running out of cell phone battery.

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

    Rated 5 out of 5 stars

    Great product

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

    Great product and charges really fast. I strongly suggest this device.

    I would recommend this to a friend
  • Cons mentioned:
    Weight

    Rated 5 out of 5 stars

    Simple good item

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

    Works well. It’s in the heavier side, but I think that is fine for the amount of power it provides

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

    Rated 5 out of 5 stars

    You get what you paid for

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

    It helps charge products at a consistent rate. Highly suggested!

    I would recommend this to a friend
  • Cons mentioned:
    Weight

    Rated 3 out of 5 stars

    Charges slowly and heavy but gets the job done

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

    I’m a little disappointed with this, but maybe my expectations were too high. It takes FOREVER to charge…like 9 hours. It’s been plugged in since 4pm, it’s 11pm now, still not done. And it doesn’t charge at all with many charges, but that’s not obvious at first - the lights indicate it starts charging but I guess after a minute or two it stops. In addition to that it’s really heavy, and it doesn’t seem to hold 4 full charges - more like 3. I guess I don’t really know what’s out there, but I wish I had gotten something higher end.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 4 out of 5 stars

    Incredible battery life if you don't need fast cha

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

    Excellent charger. Recharged my Bluetooth speaker and phone multiple times pn a camping trip. Choose this model for the slower charge speed. I do not prefer fast charging batteries to protect longevity.

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

    Rated 5 out of 5 stars

    Nice

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

    Long battery life, great for travelling. Just takes a while to charge up the battery pack itself

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

    Rated 5 out of 5 stars

    Would buy again

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Holds a long charge and a must have when camping. Rather have this and not need it, than not have it and need it.

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

    Rated 5 out of 5 stars

    Great power value

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

    Good for multiple devices on the go or for extensive use of a power hungry tablet

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

    Rated 5 out of 5 stars

    Great value

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

    Bought this before my over seas trip. Charged my phone and iPad on the plane twice and barely used any battery from the pack!

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

    Rated 5 out of 5 stars

    Charge

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

    Works great, allows me to charge when im on the go.

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

    Rated 5 out of 5 stars

    Very versatile and useful power bank

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Holds amazing charge and charges quickly. Great to keep in tech backpack

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

    Rated 5 out of 5 stars

    Great

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

    Very easy to use and is a most welcome addition to my electronic hear

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

    Rated 5 out of 5 stars

    MIGHTY yet compact!

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    use this everyday! one of the most useful purchases this year! no more excuse for a dead phone!

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

    Rated 5 out of 5 stars

    Long-Lasting Battery Pack

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

    Charges up quickly and the battery lasts quite a long time. Very helpful and handy when you're always on the go!

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

    Rated 5 out of 5 stars

    Battery cellphone juicer

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

    Very good battery juicer for cell phones. It charged fast.

    I would recommend this to a friend
  • Cons mentioned:
    Weight

    Rated 4 out of 5 stars

    Serves it’s purpose

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

    Works well, but it’s definitely a bit heavy. It’s nice that it can charge multiple devices at once but it is a little slow. Overall serves it’s purpose.

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

    Rated 5 out of 5 stars

    Picture Perfect

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

    Perfect for my trip to Boston. Took a ton of pictures and this made it so I didn’t have to worry about power

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

    Rated 5 out of 5 stars

    Good

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

    Good, it works wonderful and it chargers my phone fast

    I would recommend this to a friend