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Customer Ratings & Reviews

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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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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 11 Showing 201-220 of 1,402 reviews
  • Pros mentioned:
    Charging speed, Size

    Rated 5 out of 5 stars

    I love Anker!

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

    I bought this when I went to Disney and it was a great investment! It charged my phone super fast and was a great size to put it in my backpack!

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

    Rated 5 out of 5 stars

    Excellent extra charger

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

    Just what I needed on a trip. Works great. I can carry in my bag or backpack. Recharges easily.

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

    Rated 4 out of 5 stars

    teenager approved

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

    Bought for my daughter, she said it will carge her cell phone twice from dead. She loves it, keeps her phone going when we are out and about. Con would be that it is heavy.

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

    Rated 5 out of 5 stars

    Solid power bank

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

    I took this power bank to charge my devices before the winter power outage season. The bank saved me twice during this period where I had to charge devices during power outages. I had three devices and I charged them twice and it still had power! The construction of the power bank is solid and the only drawback is it takes time to recharge so keep that in mind if you need to prepare in a short notice.

    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

    Had this for years

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

    Had this since Aug 27, 2022 and it is still a beast use it everyday and it stays for a very long time and keeps my phone charged perfectly

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

    Rated 5 out of 5 stars

    Great Purchase for Travel

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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 great for travel! Fits in a small fanny pack and holds battery for long periods of time.

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

    Rated 5 out of 5 stars

    Elie Altarsha

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

    Great functionality and design and suitable for travelling and countries with no electricity

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Usb-c

    Rated 5 out of 5 stars

    Portable Power

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

    A very handy device for those times you are in the wilderness and are not able to charge your cell phone, etc.

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

    Rated 5 out of 5 stars

    Best portable charger

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

    I recently traveled from CA to NZ and this saved me. Super slim and charged my phone a good amount of times.

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

    Rated 4 out of 5 stars

    Works Great

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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 the size of the battery pack. It charges pretty fast and works well. Used it for charging my phone and watch as well as my heated vest. Works like a charm. Would recommend.

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

    Rated 5 out of 5 stars

    Great bank.

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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.

    Chargers phone and tablet so fast. A little heavy but works great.

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

    Rated 5 out of 5 stars

    Vacation Saver

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

    Went on vacation and went to lots of outdoor destinations. First day my phone battery died from taking so many pictures. Second day I ordered the power bank to keep my phone charged. We were able to charge 3 iPhones and an Apple Watch with lots of juice left in the power bank. Best part was the ease of price adjustment over the phone when Best Buy had a sale within the return window.

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

    Rated 5 out of 5 stars

    Good battery pack

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

    Great battery pack. Lasts a long time and charges relatively quick for how big it is. I carry it with me everywhere.

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

    Rated 5 out of 5 stars

    Great, powerful portable charger.

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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.

    Great, powerful portable charger. We take on trips and longs days away from home. Quickly charges multiple devices at the same time.

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

    Rated 5 out of 5 stars

    Must have

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

    I boight this before our trip to London. Charges really fast snd is pretty slim.

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

    Rated 5 out of 5 stars

    Battery charger

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

    Great battery, long lasting and easy to use. Anker is one of the most reliable products.

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

    Rated 5 out of 5 stars

    Worth 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.

    Bought for my son. He said it was a lifesaver! Charges fast and holds multiple charges.

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

    Rated 5 out of 5 stars

    Worth it.

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

    I love it. Charges my Samsung Galaxy s21 ultra pretty quickly. I can get 2 full charges out of it. Great to have on hand if youre a delivery driver.

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

    Rated 5 out of 5 stars

    Charger

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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 my second one. I keep one at work, and one at home. Very fast charging, lasts a long time.

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

    Rated 5 out of 5 stars

    Useful when no charging station available

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

    Great product. Worked well on recent trip. Charged phone pretty quick. It is a little heavy. It takes a while for the charger to charge

    I would recommend this to a friend