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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 23 Showing 441-460 of 1,403 reviews
  • Pros mentioned:
    Charging speed

    Rated 5 out of 5 stars

    Great product!

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

    I've used this battery charger for a few months and it never disappoints. Quick to charge my phone.

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

    Rated 5 out of 5 stars

    This is an awesome gadget

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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 an awesome gadget. It truly charges your equipment very fast. I am ver glad to have it and I use it for my cellular phone. I truly recommend this to anyone.

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

    Rated 5 out of 5 stars

    Pocket Power

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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 for the price. Easy to use and comes in handy during power outages. Fits easily in your pocket or purse ready to use when there’s no other power source.

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

    Rated 5 out of 5 stars

    Great Battery Back Up

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a great battery back up. It's flat enough for easy storage and charges fairly quickly.

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

    Used it to charge my phone 6 nights in a row and think I could have probably done another night if needed. Very pleased with this.

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

    Fast charging both ways. I’ve used for travel and hunting trips. It has worked great in all domains! Highly recommend.

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

    Rated 5 out of 5 stars

    Little pricey but worth it

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

    The price tag was a little high for the device but in the end get what you pay for. Its a high quality product and durable as heck.

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

    Rated 4 out of 5 stars

    Keeps me charged and ready to go.

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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 is strong enough to charge not just a phone but also my Switch. I keep it in my to-go case. Depending on how low my Switch battery is I can get a couple of charges out of it until it needs to recharge. It does take several hours to recharge but well worth it to me.

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

    Rated 5 out of 5 stars

    5/5

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

    Great battery charger, definitely best one I’ve bought in a while I will say it takes a while to charge but when it’s full charged it worked for multiple chargers

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

    Rated 5 out of 5 stars

    Great option for portable charging

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

    Perfect for on the go charging, long battery life to charge my phone a couple times over. Easily fits in my bag for travels.

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

    Rated 5 out of 5 stars

    Good portable charger

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

    I had to purchase this item because my previous portable charger died after one use. I have been using this daily for the past week and it works great. It charges my phone super quick.

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

    Rated 5 out of 5 stars

    Juice worth the squeeze.

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

    My go to for extended portable battery life. Well built charges items sufficiently. Holds power for many hours. Worth spending the extra money. My second Anker battery, I will remain brand loyal.

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

    Rated 5 out of 5 stars

    Great purchase

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

    This was a great buy. Very easy to store away during flights and travel same size as my IPhone and can be stored in a backpack or back pocket

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

    West Los Angeles Location Customer Service Rocks@

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

    Based on customer service alone at this particular location, 10 stars. I haven't even tried this version of Anker, though I've had another one and swear by it. This location specifically is solicitious of it's customers, cares if you're on crutches or need a little extra help, and they offer it with grace and dignity. This location, though a little farther from my home than 2 other stores (both of which I've gone to), has my specific loyalty and business for all things electronic. Full stop.

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

    Rated 5 out of 5 stars

    Recommend to purchases

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

    Good qualification product. Since i changed once I can use for long time

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

    Rated 5 out of 5 stars

    Great product

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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 a lifesaver. I was able to charge my phone when I was on a bus travelling to different destinations, when I didn't have time to charge my phone in my room before leaving.

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

    Rated 5 out of 5 stars

    Great purchase

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

    Love this external battery. Lasts a really long time. I needed it because my gopro battery only lasts 20 minutes..

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

    Rated 5 out of 5 stars

    Good

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

    Very light weight and easy to carry/transport. Good charge

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

    Rated 5 out of 5 stars

    NIce battery pack

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

    This little gem does the trick to power up all my devices for Baesball Game Changer setup.

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

    Rated 5 out of 5 stars

    Great little charger

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

    Bought this for a trip so that we would have a battery charge at all times. It was great. It held a charge for a long time and we were able to keep all of our electronics going!

    I would recommend this to a friend