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Customer Ratings & Reviews

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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 20 Showing 381-400 of 1,403 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Perfect for long trips

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

    This charger was perfect for charging our cellphones during our vacation. It does take about 4 hours to actually charge the battery, but is quick in charging the cellphones. Not too heavy or bulky.

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

    Rated 5 out of 5 stars

    Small but powerful

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

    I love how long the battery power lasts on only one charge. Im able to charge my phone at least 3 times.

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

    Rated 5 out of 5 stars

    High quality and reliable power…

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

    Great power source, charges my IPhone 13 at least 4-5 times when needed. I also use this for my USB powered cameras in my back yard and it lasts almost a full 18 hours…

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

    Rated 5 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.

    Anker power core, I have several. I drive a lot of field trips, use my GPS all the time. I cannot run out of power, with 50 football players. And get lost in the middle of nowhere. I know I will have power at all times. Do not leave home without it

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

    Rated 5 out of 5 stars

    Very useful and convenient

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

    This portable charger works great. We used it recently while on vacation and easily charged our phones while on the go without wasting time to look for charging stations.

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

    Rated 5 out of 5 stars

    Great power bank

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

    I only buy the Anker power banks, they are the best and none cane match them. Plus they are Apple compatible and last a long time. I still have a power bank from about 6 years ago and works just as good as this one :)

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

      So glad you love the product! Thank you for your support. We are super excited to provide something that betters your life. We promise to continue striving to exceed your expectations!

      Remember your device comes with an 18-month warranty, and anytime you need help just let us know.
      Email: support@anker.com
      Phone number: +1 (800) 988 7973 anker

  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Anker - PowerCore III 20K mAhPortable Battery

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

    It is the best battery purchase ever. I took it to Mongolia fully charged at home, and once there, I could keep everything charged for a week - phones, laptops, iPads.

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

    Rated 5 out of 5 stars

    Great 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’ve been impressed with Anker products which is why I chose to buy this portable charger.It’s a little bulky but holds slot of power. Comes with a nice case as well. Has enough outlets to charge your devices with plenty of power left over.

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

    Rated 5 out of 5 stars

    Very Nice Battery

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

    This battery is really nice. I bought it to have for power outages during a hurricane. I figured one with 20K would hold me over until the generator is started.

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

    Rated 5 out of 5 stars

    Great portable 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.

    I've only used this a handful of times, but it replaced an older mophie 20k charger that started having issues. So far it has worked really well and is considerably more compact than the mophie I had previously.

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

    Rated 5 out of 5 stars

    Great Buy

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

    This charger works great! Fast charges my phone with no issues. Saves me from having to purchase a new phone when charger port quit working.

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

    Rated 5 out of 5 stars

    Power bank

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

    Sleek and works as described. Took longer to fully charge than advertised and also ran down after charging my iPad. Hope that this was due to it needing to cycle. A little heavy.. recent purchase but so far pleased with my purchase.

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

    Rated 5 out of 5 stars

    Wonderful charger

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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 charger definitely worth the money charged my phone and ear buds with still enough left for a few more chargers. Great t talk with when camping.

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

    Rated 3 out of 5 stars

    not excited!

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

    I had an Aker power core before, and LOVED it, It lasted a really long time, and the charges were always super fast. This one, though newer by 5 years, doesn't compare to my old one that still works like a charm.

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

    Rated 5 out of 5 stars

    It’s done me great

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

    I’ve had this product for over a year now and still works like brand new

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

    Rated 4 out of 5 stars

    Great product

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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.

    A little heavier than expected but works great. Fast charger.

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

    Rated 5 out of 5 stars

    Multiple Things

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

    Needed this due to travel a lot recently. Not having time to charge multiple phones, laptop, and headset. This charged them all and still has enough for a 1-2hr flight if I need it.

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

    Rated 5 out of 5 stars

    Survivor

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

    Has survived many years of travel and charging and discharging. At this point, the ports are getting a little old. If they have an update of this, go for it.

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

    Rated 5 out of 5 stars

    Powerful

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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 is a top notch power bank. It charges my phone multiple times before needing to recharge. It is a little bulky but this is expected from such a good battery.

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

    Rated 5 out of 5 stars

    A Must For Travel

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

    As most travel electronics (iPhone, Camera, iPad) batteries run down after a day in use. Perfect to take with while riding the bus or train… charging up items very quickly. Waited awhile before I purchased one … sorry I did not purchase one earlier.

    I would recommend this to a friend