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Customer Ratings & Reviews

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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

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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 17 Showing 321-340 of 1,403 reviews
  • Pros mentioned:
    Battery life, Charging speed

    Rated 5 out of 5 stars

    Portable Anker Battery Charger

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

    Charges real fast! Plus battery charge lasts long.

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

    Rated 5 out of 5 stars

    Power Bank

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

    There is a variety of portable chargers out there, but this one has held up well. I use it for all of my travels and charges multiple devices really quick. Happy with my purchase overall

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

    Rated 4 out of 5 stars

    Works well

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

    Works great, was pretty cheap all things considered and fits in most bags

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

    Rated 4 out of 5 stars

    Too heavy

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

    A bit heavy to carry daily. But holds its charge well and is durable.

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

    Rated 5 out of 5 stars

    Works good

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

    Works good - seems long lasting. A bit heavier than I expected.

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

    Anger power bank is able to charge a phone around 2 to 3 times in one single charge

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

    Rated 5 out of 5 stars

    Buy this battery

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

    Best li-ion battery I've ever had. Perfect size and weight, good recharge life so far

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

    Rated 5 out of 5 stars

    Good charger

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

    Great charge, long lasting, easy recharge. Really like it

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

    Rated 5 out of 5 stars

    Power bank

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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.

    Charges well and does not overheat. Slim design. Not too heavy.

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

    Rated 5 out of 5 stars

    Charger

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

    Easy to use, light weight, longer changed lasting.

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

    Rated 5 out of 5 stars

    Sleek and powerful.

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

    Great size, portable and good for multiple charges of iPhone 12.

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

    Rated 5 out of 5 stars

    Great 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.

    Great power bank. Kept my phone, bike computer, and other devices charged for a 7 day mountain bike trip in the backcountry. Highly recommended.

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

    Bought for a trip to Europe and it worked perfectly! Ended up making 3 trips to Europe due to some unforeseen circumstances and it never failed. Get 2-3 full charges on IPhone that was down to 10%. I’m sure there was more left in reserve, but that’s all I needed.

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

    Rated 5 out of 5 stars

    Portable charger

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

    Keeps the phone charging up 24 hrs , easy to carry

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

    Rated 4 out of 5 stars

    portable charger

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

    charged quickly and lasted as long as we needed it to. we were using it overseas and it worked fine with the adapter.

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

    Rated 5 out of 5 stars

    Works Effectively

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

    I drive a car that does not have a working auxiliary plug to power my phone while driving. This has worked wonders for that. Kept two phones charged on a 9 hour drive. Worked so well i bought two. Highly recommend.

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

    Rated 4 out of 5 stars

    Great charger!

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

    Great for traveling. Has a ton of power to keep you going for a long time. Used it heavily on a 14 hour flight to keep the Switch going. Only thing which stopped it getting 5/5 for me was no cloth case included. All the other Anker charges I have included one. Not a deal breaker, but the case is a nice touch to avoid scratches.

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

    Rated 5 out of 5 stars

    Strong and Powerful!

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    You get what you pay for with this great portable charger! Yes it's a bit heavy than others but it is strong ang a great charger.

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

    Rated 5 out of 5 stars

    Keeps me powered up on the go.

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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 big fan of anker products, especially as a third party peripheral, I've tried cheaper chargers which only lasted a few uses before they no longer held a charge, but anker has been reliable for over a year now. It even charges my phone almost as fast as the wall charger. I'm so impressed I purchased 2.

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

    Rated 4 out of 5 stars

    my backup plan for the power grid

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

    I was a bit confused about how to charge it but when I found I could use my old Power Adapter which I did not throw out when I bought a Apple Series 7 watch and Mini 12 phone So, I just plugged it in and gave it overnite to charge up. Haven't had a power outage at home or need to take it in the car but am expecting it to work just fine. If the grid goes, so does everything else. But, for shorter outages this gives me peace of mind.

    I would recommend this to a friend