Year-End SaleEnds 1/1/26. Limited quantities. No rainchecks.

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

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

Customer reviews

Rating 4.7 out of 5 stars with 1403 reviews

Rating Filter

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 53 Showing 1,041-1,060 of 1,403 reviews
  • Best Buy Employee

    Rated 5 out of 5 stars

    Great for travel

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

    I have purchased one of these for all my family members now that everyone is traveling

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

    Great!

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

    Works great i bought it for a trip we took i could charge my phone up to 4.5 times.

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

    my power bank

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

    very good product when in emergency situation or where power failure or any areas where no electricity. can be used for a while

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

    Small but mighty

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

    This little thing is amazing. It powered up from my computer then it charged my phone and then my watch. Not too heavy and very useful.

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

    Great but USB-C

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

    Works very good but no USB-C option to charge. Buy the newer version.

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

    anker powercore

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

    it works just takes a while to charge 100%. Would by again.

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

    Anker - PowerCore III 20K mAh USB CPortable

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

    I am very satisfied with this item. Moreover, the salesman, was really helpful and knowledgeable.

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

    Weeee buy it

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

    AWESOMES I WISH THEY HAD WIRELESS CHARGING THOUGH it would be nice

    I would recommend this to a friend
  • Best Buy Employee

    Rated 5 out of 5 stars

    Anker is pretty lit

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

    Wish it was just C ports but they dont make that for best buy at time of purchase

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

    Well Said

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

    Great product! Exactly what we were looking for and needed for our trip to Disney. :) It worked just as the description stated.

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

    Good for USB-C

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

    The only Battery I found with USB-C output that helps a lot with new gadgets

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

    Best

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

    I love love love this power bank I have purchased for all my friends

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

    Excellent Service

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

    Service cashier was excellent.Was pleased with shopping experience. Will buy again.

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

    Backup power provides peace of mind

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

    It's nice to have this backup battery charger. Gives me peace of mind in those situations when power is out and phones, etc need recharging.

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

    Comes in handy.

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

    It comes in handy when you know you won’t have a charger nearby or especially when there’s a power outage haha. Deff recommend

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

    Nice charge

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

    It's wonderful, holds a charge for a long time, great buy for the price.

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

    recommendable

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

    good product i like it so much i can recommend to my friends

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

    Love it

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

    Works perfectly! I’ve enjoyed using it and it’s extremely handy when I’m on the go.

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

    Mr

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

    Highly recommended Highly recommended Highly recommended

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

    Great Buy

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

    Works great. Gives various charges with one complete cycle

    I would recommend this to a friend