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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 46 Showing 901-920 of 1,402 reviews
  • Pros mentioned:
    Battery life

    Rated 4 out of 5 stars

    Works great. I never leave home without it.

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

    Holds several charges for my phone. I never have to worry about running out of battery life.

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

    Rated 5 out of 5 stars

    Ms.

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

    I use this daily. Great purchase. Fast charging. All well

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

    Good value

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

    Works great for the purchased price, charges iphones great

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

    Rated 4 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.

    Very awesome portable charger for the price. Battery last a really long time which is a plus.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Unexpectedly confusing to use.

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

    Works well, but it's a little confusing with the trickle-charge thing - sometimes it doesn't immediately charge like I think it should. The instructions are tiny and confusing. And, it didn't come with a pouch as shown in some of the other users' pictures (I asked Anker, and apparently this unit is no longer bundled with a pouch).

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

    nice long charge and I use it for my camera to give it extra juice

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

    Rated 5 out of 5 stars

    Works great

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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.

    Good product thus far. Charges fast and powers my devices great.

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

    Rated 4 out of 5 stars

    On the Go

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

    Bought it for Lego land. Perfect fit for a fanny pack to carry around all day

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

    Rated 5 out of 5 stars

    Good portable battery

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

    Charges multiple devices and is quick to recharge. Recommended.

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

    Rated 5 out of 5 stars

    Ipad

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

    Great gift for my son. He loved it. Great service from Best Buy.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Excellent power bank but a little bulky.

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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.

    The Anker PowerCore III 20k Batter Charger is an excellent choice if you are looking for a somewhat slim but powerful on-the-go charge. It's build quality feels solid and its low profile makes it easy to slide into thin compartments. My only two complaints would be that it is still a little too large to fit comfortably into most people's pockets and that the ports do not have any silicone or rubber dust covers like some other devices in this price category have.

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

    Works great!

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

    Love this. It works great! .

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

    Rated 5 out of 5 stars

    Great battery backup

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

    Great battery charger. Able to charge phone a couple times.

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

    Rated 5 out of 5 stars

    Great charger

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

    Great backup for when the power goes out. Holds a charge well.

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

    Great product charges my phone and ps5 controllers fast

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

    Definitely recommend. Came in handy while on excursions.

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

    Rated 5 out of 5 stars

    Worth it

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

    It's light for the size and charges my devices fast.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Great powerbank

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

    Long time user of Anker and this product doesn’t fail my expectations. Great product.

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

    It's a great deal for 20kmAh bank

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

    It does the job 100% while being used accordingly.

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

    Rated 4 out of 5 stars

    Great buy

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

    Do far it works great. It charged my phone with no problem. Howe we i just only used it 1 time

    I would recommend this to a friend