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Customer Ratings & Reviews

Your price for this item is $13.99
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The comparable value price is $59.99

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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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 38 Showing 741-760 of 1,403 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    charger

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

    I used everyday to charge all my electrical devices on an 8 day cruise and still had charge left

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

    Rated 5 out of 5 stars

    very high quality

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

    very reliable and good quality, I use it nearly everyday, it's fast and efficient

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

    Satisfied Customer

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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.

    It works very well! I would definitely recommend it!

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

    Rated 5 out of 5 stars

    Not bad

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

    The backup battery is good. Charges my iphone 12 pro max twice at least.

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

    Rated 5 out of 5 stars

    Anker PowerCore III 20K mAh power bank review

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

    Works great! Charges really fast and it's very portable.

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

    Rated 5 out of 5 stars

    Portable Heaven

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

    portability makes this item a must have. This makes my life easier when I am traveling.

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

    Rated 5 out of 5 stars

    Does what it should

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

    Works great to charge iPhone and iPad when traveling. Battery capacity is great.

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

    Rated 5 out of 5 stars

    battery pack

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

    I love this battery pack it can last you all day long

    I would recommend this to a friend
  • Pros mentioned:
    Usb-c

    Rated 5 out of 5 stars

    Works for both phone and switch

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

    Works good for both phone and the Nintendo switch.

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

    Got great use at on the move all day. Kept my phone running.

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

    Rated 5 out of 5 stars

    Charged

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

    This device holds a charge like an offensive guard who doesn’t care about getting flagged.

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

    Rated 5 out of 5 stars

    Awesome

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

    I like that this is slim but not too big and bulky either. Can easily fit into a sling bag if needed.

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

    Rated 5 out of 5 stars

    Great backup battery!

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

    This thing can charge your phone like no other. ProTip, charge it over night. Takes a while to fully charge

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

    Rated 5 out of 5 stars

    Gud

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

    It holds its charge for a while and is stealthy lol

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

    Rated 4 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.

    Long last battery that could charge 3 whole iPhone battery but very slow when recharging the portable charger

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

    Rated 5 out of 5 stars

    Powerhouse Battery Pack

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

    It's massive! It's powerful! Fast to charge and easily powers up multiple devices simultaneously.

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

    Works well, it charged my cell phone ans Steam Deck.

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

    Rated 5 out of 5 stars

    Slim design

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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 for a trip and didn’t disappoint. Kept a charge all day while charging and IPhone and watch.

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

    Rated 5 out of 5 stars

    Great charger

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

    Quick and plenty of charges from this battery charger.

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

    Excelentw cargador soporta 3 cargas conpletas ....

    I would recommend this to a friend