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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 52 Showing 1,021-1,040 of 1,120 reviews
  • Rated 4 out of 5 stars

    Worth the $$

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

    Works great. Very economical. Just as good as the higher priced model.

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

    Tuan Pham

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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.

    Good price, keep my phone working all day long. Will buy some for my family.

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

    Very slow charger

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

    Dont be decieved by the price and the fact the charger can be charged by usb c. This only charges devices at 2.5amps. Also does not charge devices with usb c only usb a ports.

    No, I would not recommend this to a friend
  • Rated 4 out of 5 stars

    Wireless Charger

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

    This is a great light weight technical device. I love it!

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

    Awful - returning - functionally useless

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

    Bought it as I am going to be traveling for work and being able to access my phone/email/work accounts/etc is vital - therefore would need extra battery power by the middle or end of the day to keep my phone usable… but this product is of no value. The past 3 days in a row I charged this powerbank fully overnight and brought it to travel/work with me, and by the end of the day, having kept it in it’s case unused for 10 hours, it no longer has *any* charge left to it - it literally cannot provide any (0%) additional charge to my phone while kept in a climate-controlled environment for 10 hours when it was put there at full charge. The product only can charge your device at all if you use it immediately after charging it…. But if you have access to a charger or just had one within the last hour, then what is the point? Will be returning asap.

    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 device (such as iPhone 6 or Galaxy S8)
      - 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 4 out of 5 stars

    Portable charger

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

    I like this portable charger because it charges all my devices

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

    Yes

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

    Yesyesyesyesyesyesyesyesyesyesyesyesyesyrsyesyesyes

    No, I would not recommend this to a friend
  • Rated 4 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.

    I really like the powercore. I recomended to everybody

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

    Light weighted and easy to use

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

    Light weighted, It only offers USB not C connetion.

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

    Missing USB-C

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I wish it had USB - C charge. Technology has to always innovate and keep up.

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

    No USB C charging?

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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.

    My anker from 2018 has USB C charging, the older model of this, yet this from 2022 does not. Seems dumb now seeing i have to carry 2 cables instead of one like my 2018 model that eliminated that problem. A big step back for some weird reason

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

    Not Charging

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

    Would not charge so I returned it. Will search for a different brand.

    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

    Ms.

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

    I charged it, the blue lights were lit, but when I connected my phone, NOTHING. I repeated process several times and NOTHING.

    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

    Worst charger ever

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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.

    Pure trash got it wouldn’t charge. Had in over night was still not charging. Avoid this awful brand and anything they make. Best Buy stop bringing in bad product

    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:
      - Another wall charger/plug
      - Another cable/wire
      - Another wall outlet

      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

    stopped charging after 6 months.

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    stopped charging after 6 months. Used it only a few times during this time. had this as a backup for power failures during winter

    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 3 out of 5 stars

    Jury still out...

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

    Jury still out on this item...seems to charge initially, then for some reason powers off. Not sure if I'm doing something wrong, but this should be a no-brainer type device.

    No, I would not recommend this to a friend
  • 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.

    Charged up all the way used once and would turn on or charge after one use

    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 3 out of 5 stars

    Can only handle one device at a time.

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

    Even though it has 3 ports you can only charge one device at a time. So it cab be inconvenient if all your stuff is dying at the same time.

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

    Do Not Buy!!!

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

    Only worked for about 2 weeks and wouldn’t charge after that. Reached out to the company and NO help at all!

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

    Won't last

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It works fine until it quits charging. Had it less than 4 months and it will no longer charge

    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