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Customer reviews

Rating 4.7 out of 5 stars with 1402 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 19 Showing 361-380 of 1,402 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Finally a portable, external charger that works!

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

    After buying several more expensive, but inadequate chargers, this one actually can recharge my phone, Fitbit watch and other devices multiple times before needing recharging. It was invaluable on a recent international trip.

    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:
    Charging speed
    Cons mentioned:
    Weight

    Rated 4 out of 5 stars

    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 great for a quick charge. Very bulky and heavy. Not ideal for on the go

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

    Rated 5 out of 5 stars

    100% Awesome

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

    Bought this for travel purposes.... but then I found it useful around the house - charge iphone or apple watch, etc. It charges devices for a LONG LONG time before it needs to be plugged back in to charge itself. VERY useful!!!

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

    Rated 4 out of 5 stars

    Efficient and fast

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    They battery needs to last longer but it will last one you all day. You just need to recharge it every night. I do highly recommend this brand over any other brand they have here. Anker portable charger charge fast without overheating your devices.

    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 4 out of 5 stars

    Good Battery Charger

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

    Overall, this is a good product and does the job. It charges a variety of phones. The only thing lacking is that the "instruction manual" doesn't tell you how to charge various phones. I had to ask someone at my work on how to use it to charge my iPhone.

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

    Rated 5 out of 5 stars

    Very useful

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

    Anger power bank is able to charge a phone around 2 to 3 times in one single charge

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

    Rated 5 out of 5 stars

    Buy this battery

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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.

    Best li-ion battery I've ever had. Perfect size and weight, good recharge life so far

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

    Rated 4 out of 5 stars

    Portable Power Pack

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

    This is the first power pack I have purchased. I wanted one for a trip to a remote area. It worked great for charging. I gave it a 4 Star because I wished it weighed a little lighter. There were similar ones that weighed more. Will check about a smaller one that is easier to carry around.

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

    Rated 5 out of 5 stars

    Great coverage for on the go

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

    This was an excellent buy. Got it for my trip to Chicago for the Agustd tour and it worked well. Plenty of charge, no issues. Fit easily in my carryon for the plane ride would definitely buy again or as a gift

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

    Rated 5 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.

    This charger has came in so handy! When i bought it i wasn't sure that i would need for my trip to Iceland in a camper driving around the island. But it sure came in handy trying to keep everything charged up.

    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:
    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:
    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

    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

    Peace of mind

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

    Used it successfully on a very recent three week European vacation. Easily kept our two cell phones and one laptop fully charged. No concerns about low battery notices

    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:
    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
  • 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:
    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