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Customer reviews

Rating 4.6 out of 5 stars with 1120 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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92%would recommend to a friend

Customers are saying

Customers often highlight the PowerCore III 10K mAh USB-C Portable Battery Charger's long battery life, compact size, and lightweight design, making it highly portable. Many appreciate its USB-C compatibility and the overall quality of the product. Positive feedback frequently mentions the charger's ease of use and convenient portability for travel. While some users noted occasional heating issues or compatibility problems with certain devices, these concerns were less frequently reported than the positive aspects.

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 1,120 reviews
  • Rated 1 out of 5 stars

    Poor instructions

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

    not used it yet. The instr are confusing. Return to store for more instruction for recharge device.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Eh

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

    Was told by a rep this would work for a heated jacket but after having to buy to buy a converter for it it still didn’t work as it didn’t have enough power.

    No, I would not recommend this to a friend
  • Cons mentioned:
    Compatibility

    Rated 2 out of 5 stars

    Trash

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

    Doesn’t even work for some devices, For example, my oculus quest 2.

    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:
      - If another known working cable helps
      - If the PowerCore works properly with other phones/devices or not

      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 1 out of 5 stars

    USB-C Does not work

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

    USB-C connection did not work out of the box. Sad!

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

      Dear Customer,

      I am truly sorry to hear that you are experiencing this issue. We understand how frustrating it can be and we appreciate your patience.

      Please rest assured that we stand behind our products and are willing to provide assistance within our capacity. We are committed to ensuring your satisfaction and resolving your concerns promptly.

      You can reach out to us via support@anker.com or call us at +1 (800) 988 7973. Our customer service team is always ready to help you.

      We look forward to your message so we can address your issue as soon as possible. Thank you for bringing this to our attention and giving us the opportunity to make things right.

      Best Regards, anker

  • Rated 1 out of 5 stars

    Anker portable charger

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

    Charges slow poor ...only purchased because i had 15 dollars in credits that were gonna expire

    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:
      - The model of your phone, such as iPhone 7 or Galaxy S8
      - How long does the battery take to fully charge your phone when you're not using the phone (when it's in power-saving mode)
      - If another cable helps at all
      - How the PowerCore works with other phones/devices

      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 1 out of 5 stars

    Not

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

    This item is horrible. I am returning this iPad. It does not charge my phone up.

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

      Dear Customer,

      I am truly sorry to hear that you are experiencing this issue. We understand how frustrating it can be and we appreciate your patience.

      Please rest assured that we stand behind our products and are willing to provide assistance within our capacity. We are committed to ensuring your satisfaction and resolving your concerns promptly.

      You can reach out to us via support@anker.com or call us at +1 (800) 988 7973. Our customer service team is always ready to help you.

      We look forward to your message so we can address your issue as soon as possible. Thank you for bringing this to our attention and giving us the opportunity to make things right.

      Best Regards, anker

  • Rated 1 out of 5 stars

    Do NOT buy

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

    Only charges when it feels like it - completely useless. Do NOT buy!

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

      Dear Customer,

      I am truly sorry to hear that you are experiencing this issue. We understand how frustrating it can be and we appreciate your patience.

      Please rest assured that we stand behind our products and are willing to provide assistance within our capacity. We are committed to ensuring your satisfaction and resolving your concerns promptly.

      You can reach out to us via support@anker.com or call us at +1 (800) 988 7973. Our customer service team is always ready to help you.

      We look forward to your message so we can address your issue as soon as possible. Thank you for bringing this to our attention and giving us the opportunity to make things right.

      Best Regards, anker

  • Rated 1 out of 5 stars

    Not worth it

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

    Awful! Would not hold a charge even w heavier duty Anker cable and charger.

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

      Dear Customer,

      I am truly sorry to hear that you are experiencing this issue. We understand how frustrating it can be and we appreciate your patience.

      Please rest assured that we stand behind our products and are willing to provide assistance within our capacity. We are committed to ensuring your satisfaction and resolving your concerns promptly.

      You can reach out to us via support@anker.com or call us at +1 (800) 988 7973. Our customer service team is always ready to help you.

      We look forward to your message so we can address your issue as soon as possible. Thank you for bringing this to our attention and giving us the opportunity to make things right.

      Best Regards, anker

  • Rated 1 out of 5 stars

    Not worth it

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

    Dud and did not work.. Just not impressed at all with this product.

    No, I would not recommend this to a friend
  • Rated 2 out of 5 stars

    Engineer

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

    Little to no instructions on how to operate, which wouldn’t be unusual if it didn’t have a button with several LED lights. No explanation for any of it. After charging the device I plugged in an iPhone to charge it. And you guessed it, no charging shown. So after pressing the button a few times the iPhone started to charge. I guess the button was important…

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

      Thank you so much for sharing your experience.

      We really appreciated your input and will endeavor to optimize future products that we believe will live up to more customers' expectations. We do keep all our customers' input on file to evaluate where our products' strengths and weaknesses are, so we appreciate you reaching out to us.

      Please reach out to us via support@anker.com or call us at +1 (800) 988 7973 if you need further help.

      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 1 out of 5 stars

    No Longer Charging

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

    At first it was great (first week) but now it is no longer charging.

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

      Dear Customer,

      I am truly sorry to hear that you are experiencing this issue. We understand how frustrating it can be and we appreciate your patience.

      Please rest assured that we stand behind our products and are willing to provide assistance within our capacity. We are committed to ensuring your satisfaction and resolving your concerns promptly.

      You can reach out to us via support@anker.com or call us at +1 (800) 988 7973. Our customer service team is always ready to help you.

      We look forward to your message so we can address your issue as soon as possible. Thank you for bringing this to our attention and giving us the opportunity to make things right.

      Best Regards, anker

  • Rated 1 out of 5 stars

    Would not recommend

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

    This did not charge any of my devices. Would not hold charge.

    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 let us know the model of your device(such as iPhone 6 or Galaxy S8) and try the following steps to see if the issue persists:
      - If another known working cable helps
      - If the PowerCore works properly with other phones/devices or not

      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 3 out of 5 stars

    Decent for the price

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

    Doesn't hold as much of a charge as I'd like and sometimes doesn't charge

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Don’t Waste Your Money.

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

    It lasted less than a month. Then wouldn’t charge.

    No, I would not recommend this to a friend
  • Rated 1 out of 5 stars

    Don’t waste the money

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

    Getting it to work was a huge hassle. Don’t bother.

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

      "Thank you so much for sharing your experience. We are sorry to hear you are not satisfied with this item. We really appreciate your feedback to make this item better.

      Please reach out to us via support@anker.com or call us at +1 (800) 988 7973 if you need further assistance anytime.

      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 3 out of 5 stars

    My little charger.

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

    Haven't used it yet.but am looking forward to putting it to the test.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    average powerbank

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

    its cheap and not cost effective. it doesnt not justify what it offers in its package.

    No, I would not recommend this to a friend
  • Rated 3 out of 5 stars

    Portable charger

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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 portable charger but too big. Almost same size as phone

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Extra battery for trip

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

    Drain the charge before use it. Look like factory issue.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Battery life, Size
    Tech Insider Network Member

    Rated 5 out of 5 stars

    Power to Go

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Anker - PowerCore III 10K mAh USB-C Portable Battery Charger – Black This PowerCore III 10000mAh portable charger is about the size of my Android phone in all dimensions. Nicely designed and just looks and feels good. You use the generous (nearly two feet long) supplied cable with a USB-C plug on one end and a USB-A plug on the other end to both charge the unit and then to charge your devices from the charged unit. When charging this device, you don’t have to guess how it’s coming along because there are lights that let you know how the charging is progressing. That’s a nice touch. Even though there is only one cable supplied, if you have another similar cable on hand, you can use this unit to charge a second device at the same time. While some of us may have that second cable around, not all do, so it would be a nice touch if a second cable came with the unit to allow all users to fully utilize the unit’s capabilities. You can get four to five full charges of your phone from this fully-charged device. And there is a trickle-charging mode to charge your low-power accessories. In addition to the charging unit and supplied cable, you also get a carrying pouch and an 18-month parts and labor warranty. This PowerCore III provides power to spare. Don’t leave home without it!

    I would recommend this to a friend