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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 22 Showing 421-440 of 1,403 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Convenient insurance

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

    I purchased this to take with me on a trip so that when I’m away from a charging port I can charge my iPhone and my ipad. I’ve barely needed to use it, but in those rare moments, it’s nice insurance.

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

    Rated 5 out of 5 stars

    Impressed

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

    I ordered 2 of these, one for my wife and one for myself. We both love these battery packs. Operation of it is easy and keeps our devices charged as long has the pack has a charge. Overall very happy with this purchase.

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

    Rated 5 out of 5 stars

    It works very well.

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

    I like that I have my phone charged in case of an emergency on the street it helps me.

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

    Rated 5 out of 5 stars

    Love it

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

    I love this battery charger it’s very handy. When the battery on my cell phone gets low, I just connect it to the charger and whala, charging begins. I keep it in my handbag.

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

    Rated 5 out of 5 stars

    Best option for an inexpensive charger.

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

    There are a lot of options out there but we think this is the best value. It has a USB in/out port which means it will charge your device quickly and recharges quickly as well,

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

    Rated 5 out of 5 stars

    Great!

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

    Good size. Great item to have in case you run out of battery

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

    Rated 5 out of 5 stars

    Its great. Just buy it!!!

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

    WOW!! It can recharge my s21 4 times on a single charge and still have juice left. This is one of my best electronics purchases in a few years.

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

    Rated 5 out of 5 stars

    Worked well.

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

    Took this on a trip to the Middle East. Used it several times when recharge power was not readily available. The unit worked beyond my expectations.

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

    Anker PowerCore Battery Charger

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

    We got this to keep our phones charged during a recent vacation. It worked out fantastically, I would highly recommend it.

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

    Works 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.

    Worked great for us, no problems. Did what we needed it to do

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

    Rated 5 out of 5 stars

    Reliable

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

    Great product - I got an Anker a few years back, and it has been excellent, especially when traveling a lot, so I got this as a gift for a loved one to enjoy as much as I do.

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

    Rated 5 out of 5 stars

    Handy power pack that lasts a long time

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

    I've found it wise to keep a spare or two for travel, for working in multiple spaces at home or elsewhere, and for power outages.

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

    I bought this portable chargerlike 3 years ago and still works great

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

    Rated 5 out of 5 stars

    Good quality product

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

    Excellent product ! Brought it with me on my latest trip abroad. Holds the charge very well. Never had to worry about low battery on my cell phone.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    Overall Good

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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 charger for a couple of years, it doesn't work anymore but it was great for traveling when I did first start using it.

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

    Rated 5 out of 5 stars

    quality device works as advertised

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

    bought to charge my i phone 8. i was able to get about 7 recharges out of it from the powercores initial charge. Picked up on sale for $35 so it was a great value as well!

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

    Rated 5 out of 5 stars

    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 am able to charge my phone quickly. I do not like the charging button since it has tiny lights to display the charge level.

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

    Rated 5 out of 5 stars

    Great Travel Accessory

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

    20K power bank is very useful for long days of travel. It keeps all my devices powered long enough to last a few days without access to power outlets. Very handy indeed!

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

    Rated 5 out of 5 stars

    My favorite must have!!

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

    I love it! I’ve been using this almost four months and I’m so happy with my purchase. I can use it everywhere I go and the battery last a lot.

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

    Rated 4 out of 5 stars

    Review

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

    It is a pretty good product. It takes a long time to charge, but overall I’d say it’s worthy of its price tag. It can charge about 4 or 5 iPhones if they’re dead and the charger is on full

    I would recommend this to a friend