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Customer Ratings & Reviews

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Customer reviews

Rating 4.7 out of 5 stars with 1402 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

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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 30 Showing 581-600 of 1,402 reviews
  • Pros mentioned:
    Charging speed

    Rated 5 out of 5 stars

    Power bank charger

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

    Lovey power bank charges my devices very quickly. I would totally recommend it to family and friends.

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

    Rated 5 out of 5 stars

    Amazing

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

    Absolutely recommend for traveling. This has become my best friend for my last two trips.

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

    I highly recommend this piece of equipment

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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.

    I use an iPad Pro for my symphony, chamber music, chamber orchestra rehearsals, and concerts, long pieces. There were two instances where I barely made it to the end of the concert and anxiety re: running out of power is something I don't need on top of working through a R. Strauss tone poem, Mozart violin concerto, and Mahler 5! The product works very well, so all I have to worry about now is playing the music!

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

    Rated 5 out of 5 stars

    Charger review

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

    My 2nd one, first one granddaughter destroyed Lan ports, but had 5 years of reliable use. Good battery life over the 5 years of use

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

    Rated 5 out of 5 stars

    It’s good

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

    Works like you would want it to. Holds a large enough charge to do multiple tablets.

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

    Rated 5 out of 5 stars

    Great one

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

    The anker power bank was excellent and it last so long . I can charge like 2 iphones

    I would 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

    Very Useful

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

    It was a gift. It was very useful, it kelp their iPhone charged up while listing to music working outside all day.

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

    Rated 5 out of 5 stars

    I highly recommend it

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

    One of the best power bank that I have owned. It has enough juice to charge you phone few times

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

    Rated 5 out of 5 stars

    Awesome battery pack

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

    It’s a great choice for a emergency blackout. It’s awesome because charge my iPhone and my Apple Watch several times.

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

    Rated 5 out of 5 stars

    Powerbank

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

    Has been a great powerbank, very handy and saves you in difficult situations

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

    Rated 5 out of 5 stars

    Hurricane Backup Power

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

    I bought it so if we lost power from a hurricane I’d have my phone with extra power.

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

    Rated 5 out of 5 stars

    Reliable

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

    Had one before and was great, one full charge will charge my phone up to 4-5 times just remember to add insurance

    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 5 out of 5 stars

    Good product

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

    Does what it is supposed to. Has enough to keep your devices running while you travel.

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

    Rated 5 out of 5 stars

    Great Buy!!!

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

    A great product! I highly recommend it. It has already helped me out on multiple occasions!

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

    Rated 5 out of 5 stars

    Power when you need it

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

    Power when you need it most. I forgot to charge my phone it had me covered

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

    Rated 5 out of 5 stars

    Buy it

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

    I love it … the first time ever I’m happy after buying multiple power banks this is the best .

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

    Rated 5 out of 5 stars

    The real deal.

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

    Excellent addition to any device. Whether you are travling or just constantly on the go this battery pack is for you.

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

    Rated 5 out of 5 stars

    Worth it

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

    Best one I’ve had so far. Last about 2 weeks on one charge while charging iPhone/Air pods

    I would recommend this to a friend