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Customer Ratings & Reviews

Your price for this item is $49.99

Customer reviews

Rating 4.8 out of 5 stars with 2150 reviews

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Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.9 out of 5 stars

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97%would recommend to a friend

Customers are saying

Customers admire the PowerCore 20,000 mAh Portable Charger's impressive battery life and its relatively compact size, making it portable and convenient. Many appreciate its multiple USB ports and compatibility with various devices. While some find it a bit heavy, the overall positive feedback highlights its value and usefulness as a portable power source.

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 106 Showing 2,101-2,120 of 2,150 reviews
  • Rated 3 out of 5 stars

    Could find better product for a little more.

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

    Charges quickly but also kills the charger itself fast

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

    Poor quality under a reputable name

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

    I bought it on-line. It came with 2 USB output for charging. One of the USB connection was defective. Always got a unusual sound when I inserted a USB charging cord. The other was totally fine. So I exchanged another one. The 2nd one had no connection problem, but 1 out of 4 indicator lights was off right after a full charge. So I exchanged the 3rd one. This one had the same as found in the first one I got. I was totally disappointed and got my refund back. I lost my 10% discount as birthday gift from Best Buy. Totally ridiculous and disappointed.

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

    Rated 1 out of 5 stars

    needed backup for aging smart phone

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

    bought this product so i would not be stick with a dead phone wnen I travel. Used it and it worked great,

    I would recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Awesome! Glad you enjoyed it!

      Is there anything else that we can help you with to make this experience better? anker

  • Rated 1 out of 5 stars

    Didn’t Work for My Purpose

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

    I am sure this is a great product, but it did not keep my grandson’s iPad charged while we played video games on FaceTime. I guess it just didn’t have enough output to handle the heavy duty requirement of gaming and FaceTime at the same time. It was fully charged when we started playing so that wasn’t the problem.

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

    Never Charge

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

    The Anker Power Charger is the worst item I ever purchased at Best Buy. I tired to charge it to get it working and It would not charge. I tried to charge it using the cord that came with it and also my I phone cord. E-mailed the company about the problem and was told that the company would send an new one to me. It has been over three weeks and NO New Charger.

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

    Don’t buy Anker products.

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

    So I purchased this battery pack only for it to stop working 8 days later. Don’t waste your money. Went to return it at Best Buy and was told that I couldn’t return it because I already used the product. I had already thrown out the box. I read reviews of the product after it stopped working; should of done that from the get go. Don’t waste your money on the brand.

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

    I won't recommend it to friends. It doesn't last.

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

    This device won't charge completely at present. I tried it overnight twice but in vain.

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

    Not a good product

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

    I bought this thinking that it would make my phone battery last. I fully charge this but when it came time to use it kept on discharging my phone. The fast port didn’t work. I was very disappointed. ☹️

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

      Rest assured our products are support with an 18-month warranty, if the issue is still persisting please reach out to support so we can help you in this case (1-800-988-7973) or email ([email protected]) anker

  • Rated 2 out of 5 stars

    Stopped working after 8 months

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Worked well for about 8 months, then wouldn’t hold a charge

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

      Thanks for bringing this to our attention. This isn't a normal experience, so can you please give us a call so we can look further into this with you? 800-988-7973 (9-5PST) anker

  • Rated 2 out of 5 stars

    Cheap product

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

    We used it for less than a month and it stop working. It wouldn’t charge.

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

    No instructions for troubleshooting

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

    No indication if this item is fully charged or when to re-charge

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

      The indicators are the four blue LED's on the top! anker

  • Rated 1 out of 5 stars

    Disappointing charging speed

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

    Seems to not work well with iPads as the discharge from the device could not outpace the charging from the pack using either output. $50 each and I bought 2 and I really can’t use.

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

      If you have two iPads plugged in at once, it will not charge them as fast, due to how much power each iPad consumes. anker

  • Rated 1 out of 5 stars

    Did not work

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

    I bought this product base on all the reviews I got and it says up to 80% charge in 30 mins I have not gotten that we timed it and it only went up 10% in 30 mins I don’t know maybe I got a defective one but I’m sending it back.

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

      Thanks for writing this and letting us know! We have an 18 month warranty on all of our products, so we can help you with this. Make sure you have your receipt ready and give us a call at 800-988-7973!

      - The Anker Team anker

  • Rated 1 out of 5 stars

    Horrible

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

    I bought this for a trip to California. I charged it up and was set for my trip. It does before finishing charging and would not charge. I was using the cable it came with and bought a wall plug-in designed for it.

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

      Thanks for writing this and letting us know! We have an 18 month warranty on all of our products, so we can help you with this. Make sure you have your receipt ready and give us a call at 800-988-7973!

      - The Anker Team anker

  • Rated 1 out of 5 stars

    Does not Work.

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

    Bought this for a 17 day trip. Has not worked once. For some reason it doesnt charge my iphones nor the Ipad Pro. Will return as soon as I get back.

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

      We apologize for this experience, but we do have an 18 month warranty on all of our products. Send an email to [email protected] with your order info so we can help with this! anker

  • Rated 1 out of 5 stars

    did not work for my phone

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

    It was reported to have been compatible with my Samsung phone, once I got out on my trip, the part that plugs into this device was a totally different size. I am very displeased

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

      The PowerCore 20000 MAH charges off of a micro usb, which should be the same thing your Samsung phone charges off of as well. Unless you have new USB-C, in that case you just use the cable that we provide with the PowerCore to charge it up, then use your own cable that came with your device to plug into the Anker PowerCore 20000 MAH. anker

  • Rated 1 out of 5 stars

    Okay portable phone charger

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

    Well bought it in August 2018 and it October and it won't charge any more. So it a piece of garbage. I expected more from this company.

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

      Sorry to hear this, but we stand behind all of our products. Send an email to [email protected]! anker

  • Rated 1 out of 5 stars

    bad product

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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 it brand new. when the battery low, then i recharge and it took 3 day at least to full.

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

      Thanks for the feedback! Try a stronger wall charger, as it should only take up to 10 hours to charge fully using a 5v/2.4A charger. anker

  • Rated 1 out of 5 stars

    not for Mac people

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

    not what i expected. had to return as not going to work with any of my devices. UGH

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

    Anker power core

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

    Does not work good or maybe I got a bad one. I lost the receipt and did not get the insurance for it.

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

      We apologize for this experience. Can you contact us via email so we can look further into this issue?

      [email protected] anker