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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

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 14 Showing 261-280 of 1,403 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Great value

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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 pack. Use all the time many many charges without a decrease in its performance. Highly recommended.

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

    Good capacity, light weight

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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.

    I haven’t had it long but it appears to have plenty of capacity, even charging multiple devices at the same time. It works great and is relatively light weight. On the down side, the box says it was supposed to come with a travel pouch but that was NOT included. Having a cover for travel might be useful as added protection against the contacts inadvertently touching something to cause a short circuit.

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

    Rated 5 out of 5 stars

    Cant ask for anything better

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

    Its great charges my phones well and small enough to fit in my pocket.

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

    Rated 5 out of 5 stars

    Anker is synonymous with good batteries

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

    Very good battery life and useful led light indicator of energy left. Good charging speed through USB C.

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

    Rated 5 out of 5 stars

    Miss

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

    Light in weight. Lasts for more than 8 hours. Easy to use. I’m so glad I got it!! I have a battery that will all day!!

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

    Rated 5 out of 5 stars

    Anker battery pack

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

    it takes a while to charge the battery, but it charges my phone super fast and give me about 3 full charges

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

    Rated 5 out of 5 stars

    Convenient portable adapter

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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 the second Anker portable adapter I have purchased. I bought one for myself a couple of years ago, and I purchased this one for my husband. We walk/hike a lot, and sometimes run out of charge. I bought the charger in a store, not online. Batteries are dense/heavy. I held other chargers, which might have provided more charge, but they seemed too heavy. I carry a lot stuff when I walk/hike; I did not want an extremely heavy charger.

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

    Rated 5 out of 5 stars

    Gets the job done

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

    No complaints can get a full charge in about an hour at least 4 times on one full charge

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

    Rated 5 out of 5 stars

    Power

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

    Long battery life rarely has to be charged. Very compact

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

    Rated 5 out of 5 stars

    Excellent

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

    Long time battery. Charge all day and fit in small bags.

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

    Rated 5 out of 5 stars

    Mr

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

    Very light. Easier to Carry. Battery life is convinient

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

    Rated 5 out of 5 stars

    Kind of heavy for all day use, but overall great!!

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

    So easy to use! I used it on my trip to Europe and it was great for making sure my phone stayed charged while using Google Maps all day. It's kind of heavy for all day walking but my boyfriend carried it in his bag for me so I didn't have to deal with the weight lol Definitely glad to have this peace of mind while traveling.

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

    Rated 5 out of 5 stars

    Anger slimline charger

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

    Slim design makes it easy to carry and use. Can charge multiple electronic devices at one time. Convenient.

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

    Rated 4 out of 5 stars

    Battery power cell

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

    Small in size has enough power to charge my phone two time before having to recharge the power cell

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

    Rated 5 out of 5 stars

    Battery

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

    Excellent product. Long lasting charge. A litter heavy.

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

    Its does what it was designed to do.

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

    It does what it was designed to do. Charge time is similar to wall charging in my opinion. So far I've been pleased with the performance and packaging of this product! You can find more affordable options that does the same thing but I prefer a brand that I can depend on when it matters most. My opinion could change later but as of now, I would recommend!

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

    Rated 5 out of 5 stars

    Great quick charger.

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

    Quick charged,loved it, but it is heavy., but the quick charges makes up for the weight.

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

    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.

    fast charger for iphone and ipad. Great for travel!!

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

    Rated 5 out of 5 stars

    Great travel companion

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

    Great price, easy to carry, easy to use. Would highly recommend.

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

    Rated 5 out of 5 stars

    Great Power Bank with a Fast Charge

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

    My new favorite power bank. I use this for ultra trail races and the power of this power bank charges my phone and my watch fast. Easy to store in my circumstances, but for general use, it can be conveniently set somewhere while charging.

    I would recommend this to a friend