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Customer Ratings & Reviews

Your price for this item is $13.99
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The comparable value price is $59.99

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 16 Showing 301-320 of 1,403 reviews
  • Pros mentioned:
    Battery life, Size

    Rated 5 out of 5 stars

    Good for travel.

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

    Good size. Not too heavy. Power seems to have a good shelf life.

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

    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.

    Great purchase. Holds charge and charges your devices quite fast.

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

    Rated 5 out of 5 stars

    Anker

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

    Lightweight, easy to use. Quick charge. Good value for the money.

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

    Rated 5 out of 5 stars

    Charger

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

    Its easy to carry and charges phone really fast. Would recommend

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

    Rated 5 out of 5 stars

    Would buy again

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

    Works great — saved us several Times It’s a work horse but weighs like one

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

    Rated 5 out of 5 stars

    A lil heavy

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

    A little on the heavy side but holds good amount of charge.

    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.

    My wife goes on long bike trips over the week this has to be one of the beast chargers out. It's compact and has a great charge life on it. it last 2 to 3 days for charging her phone and other peoples phones. The price on this is great we found another one at another store it was around the same price bigger but didn't have the charge that this one has.

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

    Rated 5 out of 5 stars

    Good purchase

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

    Very good portable charger, with the size of this battery back you could charge you phone from 0-100% at least 2x depending on your phones battery size. Works very well for me and kept my phone charged over a few days without needing to plug the pack in itself.

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

    Rated 5 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.

    Compact, lightweight, easy to take with me, and easy to use.

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

    Rated 5 out of 5 stars

    Great for traveling.

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

    Great for traveling. Charges iPhone or Switch multiple times and it’s compact.

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

    Rated 5 out of 5 stars

    Works great

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

    Took this abroad to use in Europe when chargers were hard to find and it worked great - charged me and my friends phone to full twice before having to charge it. It does take a full 8 hours to charge so probably do that while sleeping.

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

    Rated 5 out of 5 stars

    Great Portable 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.

    Great battery charger. Lightweight and thin. Easy for travel.

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

    Rated 5 out of 5 stars

    Best Purchase!

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

    I use this thing for everything. Charge my phone, airpods, my vape, my gopro batteries, my helmet headset.. I could go on for days. I charged it the day I got it nearly two weeks ago and I havent had to recharge it yet and I use it every day. Worth every penny.

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

    Rated 5 out of 5 stars

    Extra battery

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

    Seem to hold a long lasting charge and charged up easily

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

    Rated 5 out of 5 stars

    Power pack is great!

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

    Power pack charges my phone right up. It’s compact and is fast charging

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

    Rated 5 out of 5 stars

    Dude, it's an Anker!

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

    Anker is a well respected brsnd. I have not used it yet, so all i can do is comment on the charging. The first charge takes several hours. Ive check the status well after the charge. It still is fully charged! I have no doubt it will work as advertised.

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

    Rated 5 out of 5 stars

    Best Manager at Best Buy

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

    Remi, the store manager is exceptional. Treats the consumers with a bright smile & takes pride assisting our needs. Product: I gave my best Anker away, then bought another & noticed the charger was acting funny so i upgraded to this one as it's like the 1st one i gave away. I'm such a giver. It drives me crazy in my old age.. Ha!

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

    Rated 5 out of 5 stars

    Powerful 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.

    While a little large this charger is exactly what i needed. It carries multiple charges and is basically the same size as a phone but is heavier. It charges up your devices very quickly as well. If i had one criticism it would be that it takes a little long to charge itself. Otherwise it is perfect.

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

    Rated 5 out of 5 stars

    Good backup battery

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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 two of these, one for my wife and for myself. Super convenient to have especially on emergency basis. Mostly for power outage due to the Hilary storm. Its easy to use, but make sure thr cables are properly connected and pushed in.

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

    Rated 5 out of 5 stars

    Beat Coachella Weekend

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

    Took this camping to Coachella. I got three full charges on my phone that weekend while my friends couldn’t get more than half a charge on their Amazon power boxes. Use it daily now! Charges over night and lasts forever.

    I would recommend this to a friend