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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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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 23 Showing 441-460 of 1,402 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Great product

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

    This was a lifesaver. I was able to charge my phone when I was on a bus travelling to different destinations, when I didn't have time to charge my phone in my room before leaving.

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

    Rated 5 out of 5 stars

    Great for Hurricane Season!

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

    Highly recommended, especially when you run out of power.

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

    Rated 5 out of 5 stars

    Works great

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

    Used it to charge my phone 6 nights in a row and think I could have probably done another night if needed. Very pleased with this.

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

    Rated 5 out of 5 stars

    Little pricey but 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.

    The price tag was a little high for the device but in the end get what you pay for. Its a high quality product and durable as heck.

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

    Rated 5 out of 5 stars

    Long lasting battery

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

    Long lasting very convenient I take this everywhere I go

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

    Rated 5 out of 5 stars

    Great little charger

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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 for a trip so that we would have a battery charge at all times. It was great. It held a charge for a long time and we were able to keep all of our electronics going!

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

    Rated 5 out of 5 stars

    Best Purchase Ever!!!

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

    Bought this item because I had forgotten my portable charger at home and purchased this to give me a fast charge for my phone. And it was a godsent!!!! Will recommend this to everyone.

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

    Rated 5 out of 5 stars

    Great option for portable charging

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

    Perfect for on the go charging, long battery life to charge my phone a couple times over. Easily fits in my bag for travels.

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

    Rated 5 out of 5 stars

    Great purchase

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

    This was a great buy. Very easy to store away during flights and travel same size as my IPhone and can be stored in a backpack or back pocket

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

    Rated 5 out of 5 stars

    Great power bank.

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

    Fast charging both ways. I’ve used for travel and hunting trips. It has worked great in all domains! Highly recommend.

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

    I've used this battery charger for a few months and it never disappoints. Quick to charge my phone.

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

    Rated 5 out of 5 stars

    Anker PowerCore III

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

    I have had very good luck with Anker products and this item is no exception. I was looking for a smaller charger to go with my iPad mini and this fit the bill. Not too big with plenty of power.

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

    Rated 5 out of 5 stars

    Anker PowerCore III

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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 PowerCore III works great! I've used it 3 times already and it powers my cell quick! I charged it for the first time and I haven't had to charge it since.

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

    West Los Angeles Location Customer Service Rocks@

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

    Based on customer service alone at this particular location, 10 stars. I haven't even tried this version of Anker, though I've had another one and swear by it. This location specifically is solicitious of it's customers, cares if you're on crutches or need a little extra help, and they offer it with grace and dignity. This location, though a little farther from my home than 2 other stores (both of which I've gone to), has my specific loyalty and business for all things electronic. Full stop.

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

    Rated 5 out of 5 stars

    Charger

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

    Life saver 100% recommend the battery life lasts so long I think it is able to charge my phone at least 3 times without recharging it!

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

    Rated 5 out of 5 stars

    Great Battery Back Up

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a great battery back up. It's flat enough for easy storage and charges fairly quickly.

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

    Rated 5 out of 5 stars

    Great!

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

    Good size. Great item to have in case you run out of battery

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

    Rated 5 out of 5 stars

    Great purchase

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

    Love this external battery. Lasts a really long time. I needed it because my gopro battery only lasts 20 minutes..

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

    Rated 5 out of 5 stars

    Great product for long trips

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

    Charged it once during my trip to Spain for 4 days. Charged my phone and others to full before losing battery. 10/10 would recommend!

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

    Rated 5 out of 5 stars

    Portable charger

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

    I bought this portable chargerlike 3 years ago and still works great

    I would recommend this to a friend