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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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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 10 Showing 181-200 of 1,403 reviews
  • Pros mentioned:
    Charging speed
    Cons mentioned:
    Weight

    Rated 5 out of 5 stars

    Fast charge

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

    This portable battery charges my devices pretty fast. Its a little heavy but thats ok I was looking for a fast charging portable battery and thats what I got. I love it.

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

    Rated 5 out of 5 stars

    Fits in my purse

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

    Fits in my purse and charges fast. Took it on vacay

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

    Rated 5 out of 5 stars

    Highly Recommended

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

    Best charger. It lasts approx 3-4 days and fast charging. Great for traveling. Only con is it takes lot of time to get fully charged.

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

    Rated 5 out of 5 stars

    Good 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 thing lasts a while gives my ipad mini some good charges. I use it when i fly my plane so it can keep its charge.

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

    Rated 5 out of 5 stars

    Love it!

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Super Lightweight. Charges to full battery pretty fast. Lasts me up to 6 full battery charges, I love it!

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

    Rated 5 out of 5 stars

    Great Gift

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

    Really amazing portable charger never had any issues with battery life super compact can be stored pretty much anywhere

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

    Rated 4 out of 5 stars

    A bit heavy

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

    This battery pack is very heavy and takes quite awhile to charge. I have a Energizer and it is much lighter and charges fast. I will keep this one, but I prefer the Energizer because it's 1. lighter, 2. charges faster, and 3. less expensive.

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

    Rated 5 out of 5 stars

    Does its job very well

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

    While I’ve had limited use so far, I’m very happy with this product. It charged my phone quickly and well, and had plenty of capacity left over.

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

    Rated 5 out of 5 stars

    Works as expected

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

    Work great. Was a last minute need and this portable charger works great. A bit heavy but it works as expected

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

    Rated 5 out of 5 stars

    The best Portable Phone Charger

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

    Anker is my go to for battery tech. This is like my 3rd chargable battery because I keep lending them to family members and never getting them back! Charges my phone quickly and lasts a long time.

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

    Rated 5 out of 5 stars

    My closest "friend"

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

    This Anker-PowerCore III 20k is la little bit heavy but fix inside my purse and is very fast charging. Has two UBS making it more affordable. It comes in a fancy bag with its charger cord. I love it.

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

    Rated 5 out of 5 stars

    Anker Power bank

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

    I bought a smaller pocket batter. Before. Quality good. And price. Charges quickly. Also lasts few hours. Great if you are outdoors. No public outlets.

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

    Rated 5 out of 5 stars

    useful external battery

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

    a little heavy one to carry in your pocket but it gives you up to 4 full charges.

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

    Rated 5 out of 5 stars

    Extended device use up to 8 hours

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

    We purchased this to extend the useage of our smart phones and tablets while traveling overseas. Having a 10 hour flight this device worked great to extend the usage of those devices for games,audio books and movies. We also had excursions up to 12 hours a day and this extended the use of an aging cell phone for plenty of picture taking and phone use. Definitely worth every penny and fully met our expectations.

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

    Rated 5 out of 5 stars

    Good battery

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

    So far I've had to use it maybe twice and it still had a good charge. It works well and pretty easy to use!

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

    Rated 5 out of 5 stars

    Anger PowerCore III

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

    Easy to use. Holds a lot of charge. I like that it has two USB ports to charge 2 devices at the same time.

    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

    Rated 5 out of 5 stars

    Hefty battery, good for concerts/vacations

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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 quite hefty (it's about the size of my iPhone 11, but weighs more), but it's so nice for concerts, vacations, and just day-to-day life. Both my friend and I can charge from this charger at once since it has two outputs, and even after charging my phone ~60% and my friend's phone for hours, it still had about 50% of its capacity by the end of the night. It doesn't have a bag/carrying case like some other Anker batteries do, but I think it's worth it regardless and I'm happy with my purchase.

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

    Rated 5 out of 5 stars

    Amazing

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

    Love this external battery. Charges itself fast and charges devices very quickly. Multiple outlets and can charge with USB or USB-C. Definitely happy with this for travel.

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

    Rated 5 out of 5 stars

    Awesome portable battery!

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

    Bought it for my family and it absolutely is a life saver especially when we are on trips. Lasts a long time and quickly charges all of our devices as needed.

    I would recommend this to a friend