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Customer Ratings & Reviews

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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 49 Showing 961-980 of 1,403 reviews
  • Rated 4 out of 5 stars

    Misunderstood

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

    It works Surprisingly well I’m not very good at these things and I was impressed

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

    don't make the same mistake I did with a no-name

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

    Purchased a no-name brand from the big cloud box store and it died within a month of purchase. I should have stayed with Anker, as many of my friends/co-workers use their devices. I was pleasantly surprised by the value of this device.

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

    Rated 4 out of 5 stars

    Battery power pack

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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 so good. I use this to change my phone while driving my motorcycle

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

    Good Charger

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

    Slim design, came pre-charged (50%); seems to be quite powerful

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

    Pbank

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

    Used this while working in the hospital mopping floors its amazing

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

    Rated 4 out of 5 stars

    PowerCore 3

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

    This battery charger is great. Will charge you phone many times.

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

    Juiced up

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

    I fly a lot and my cell phone is constantly running out of power. And some airports done have charging points or not enough and my cellphone dies. So this little gadget here is perfect to keep my phone with power.

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

    Great for travel

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

    Took it with me on a trip and it worked very well. We were on a train without cell service and our batteries lost power quickly. This worked easily to power them up,

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

    Rated 3 out of 5 stars

    Decent power bank

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

    Decent power bank but takes long to charge. Good for a few charges but newer iPhones might be less. We charged 3 phones before it ran out of juice.

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

    Rated 3 out of 5 stars

    12hrs to Charge Itself.

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

    It is very powerful & charges my mobile more than 3 times from 10% or less to full charge. (Happy with that) But it takes around 10-12hrs to get fully charged. The specification of the item tells it only needs 7-8hrs max.

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We're really sorry you've encountered this issue!

      If possible, please try the following steps to see if the issue persists:
       - What model and type of wall charger/AC adapter you are using
       - If the battery charges fine with another wall charger and cable

      If those don't help, please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Rated 4 out of 5 stars

    Heavy but powerful

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

    Great capacity for multiple charging applications.

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

    Rated 4 out of 5 stars

    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.

    It was nice charger but wasn't expected to be that heavy

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

    Rated 4 out of 5 stars

    Good charger, a bit heavy

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

    Solid charger, a bit heavier than some competitors.

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

    Power up!

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

    Recharge iPhone over and over again. Only downside is this thing is big. Keep in mind, you can’t take this on a flight. You’ll need the 10000 for a flgiht.

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

    Excellent mobile 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 bought this for a business trip and it was great. No issues with TSA either. I highly recommend picking one up if you're in the need for charging on the go.

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

    Convenient

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

    Works great a bit bulky but it works for what I need.

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

    Rated 4 out of 5 stars

    Charger on the go

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

    Great for charging on the go. Works great and portable

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

    Power Bank

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

    This powerbank is very resistant even in high temperatures.

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

    Reliable back up energy

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

    My daughter uses it every day to charge her phone as needed. Recharges well and solidly built. Recommend for anyone that wants to make sure they have reliable back up energy available.

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

    Love it

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Been looking for something reliable and this is it. It’s perfect, I bring it with me everywhere.

    I would recommend this to a friend