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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

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 25 Showing 481-500 of 1,402 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Nice product

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

    Exactly what I was looking for. Gives me 4-5 charges for my phone battery. Nice build quality.

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

    Rated 5 out of 5 stars

    Charger

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

    So far it works well for our needs with no electricity in the area. It feels solid, so I know it works well. I would recommend it.

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

    Rated 5 out of 5 stars

    Powr pack

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

    [Employee of bestbuy] Great product really impressed with hiw many devices you can charge at ine and the long battery life is perfect

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

    Rated 5 out of 5 stars

    Fast and reliable charging

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

    Charges fast and reliably. Great for traveling and fast charging. I used this on a Google Pixel 7, for reference.

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

    Rated 5 out of 5 stars

    Open box Anker Power Core III 20K

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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 my first experience buying an open box item and so far so go. It is heavy but I chose this model for the ability to charge multiple phones.

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

    Rated 5 out of 5 stars

    Recommend to purchases

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

    Good qualification product. Since i changed once I can use for long time

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

    Rated 5 out of 5 stars

    Life saver

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

    Im a person that I’m constantly on my phone and my phone needs to charge at all times, this device is a life saver and comes in handy. It lasts a good 8hrs

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

    Charged it up and took on my flight out west. Was able to charge my phone and ipad pro with no problems.

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

    Rated 5 out of 5 stars

    Portable Charger

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

    Great portable bank, went on a vacation to europe and this little thing helped me charge a few of my devices since the europeans use different outlets for electricity.

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

    Rated 5 out of 5 stars

    On the go charge for work

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

    Totally need for leaving in the locker. Phone doesnt hold good charge. So this Anker charges through the type c cable. Works so far. Recommend for not anle to use oulet.

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

    Rated 4 out of 5 stars

    Anklet power core III 20K

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

    One downside of the Anker is it just have lights of remaining battery life. I wish I had spent the extra money for one with percentage of battery life used. Otherwise it is good.

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

    Bought this for my sister and she definitely fall in love with this. The best power bank that she got. Great travel companion. It's a must to have it.

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

    Rated 5 out of 5 stars

    External powerbank from Anker!

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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.

    Thin lightweight but yet powerful power bank from Anker charges my smartphone, headphones and laptop without any problems! Highly recommend this item!

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

    Rated 5 out of 5 stars

    Powerful

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

    By far, the best you can get to a portable charger. Can charge several items before the battery goes out.

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

    Rated 5 out of 5 stars

    Cheap and best

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent powerful bank which we can use it for long time and got it for cheap price in bestbuy.

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

    Rated 5 out of 5 stars

    Second Purchase

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

    This is actually my second purchase. After my mom saw how good it worked, she took mine. I had 2 buy another.

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

    Rated 5 out of 5 stars

    Consider buying it

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

    Excellent battery. Chage time can be long depending of charge level. Will charge most small electronics such as switches, wireless controllers and cellphones.

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

    Rated 5 out of 5 stars

    Wont leave home without it.

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

    Love this little lifesaver. This comes in so handy when going out of town and on vacation trips. Charges very fast and that’s the best part.

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

    Rated 5 out of 5 stars

    Good price and light battery charger

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

    I can charge my phone in full up to 3 times without charging my anker battery charger. Is not that heavy in comparisson with other power banks.

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

    Rated 5 out of 5 stars

    Best portable storage for my Iphone

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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 access and very user friendly. Like the fact that is very portable size, it was very easy to get going, and worked fast.

    I would recommend this to a friend