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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 14 Showing 261-280 of 1,402 reviews
  • Rated 5 out of 5 stars

    Super powerful and Long-lasting

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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.

    Super powerful and long lasting. I had two trips in a two year period, and I use this device with both visits, it was super reliable and fasting charging, even with two devices charger at once. I didn't even have to charge it because it was low battery, but I wanted top it off with juice.

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

    Rated 5 out of 5 stars

    This charger is the ideal size, weight, and capaci

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

    This charger is the ideal size, weight, and capacity.

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

    Rated 5 out of 5 stars

    Great Device

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This battery bank is amazing! We took it to Nepal on a three week backpacking trip and it kept our phones and watches charged the whole time. We only needed to charge the bank once during our trek. Now that we are back home it doesn’t get used as much but when we need it the charge is still there even after not charging it for weeks.

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

    Rated 5 out of 5 stars

    Power source

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

    Holds its charge. Works great. Compact size is a plus.

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

    Rated 5 out of 5 stars

    Gets the job done

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

    No complaints can get a full charge in about an hour at least 4 times on one full charge

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

    Rated 5 out of 5 stars

    Anger slimline charger

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

    Slim design makes it easy to carry and use. Can charge multiple electronic devices at one time. Convenient.

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

    Rated 5 out of 5 stars

    Power

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

    Long battery life rarely has to be charged. Very compact

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

    Rated 5 out of 5 stars

    Excellent

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

    Long time battery. Charge all day and fit in small bags.

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

    Rated 5 out of 5 stars

    Great quick charger.

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

    Quick charged,loved it, but it is heavy., but the quick charges makes up for the weight.

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

    Rated 5 out of 5 stars

    Mr

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

    Very light. Easier to Carry. Battery life is convinient

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

    Rated 4 out of 5 stars

    Battery power cell

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

    Small in size has enough power to charge my phone two time before having to recharge the power cell

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

    Rated 5 out of 5 stars

    Kind of heavy for all day use, but overall great!!

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

    So easy to use! I used it on my trip to Europe and it was great for making sure my phone stayed charged while using Google Maps all day. It's kind of heavy for all day walking but my boyfriend carried it in his bag for me so I didn't have to deal with the weight lol Definitely glad to have this peace of mind while traveling.

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

    Its does what it was designed to do.

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It does what it was designed to do. Charge time is similar to wall charging in my opinion. So far I've been pleased with the performance and packaging of this product! You can find more affordable options that does the same thing but I prefer a brand that I can depend on when it matters most. My opinion could change later but as of now, I would recommend!

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

    Rated 5 out of 5 stars

    Apple charger

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

    Super fast charger for Apple products. Can charge two Apple products at same time.

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

    Rated 5 out of 5 stars

    Battery

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

    Excellent product. Long lasting charge. A litter heavy.

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

    Rated 5 out of 5 stars

    Quality charger

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

    Anker charger works great. 3 charging ports including usb-c. Good battery life and affordable!

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

    Rated 5 out of 5 stars

    Great Power Bank with a Fast Charge

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

    My new favorite power bank. I use this for ultra trail races and the power of this power bank charges my phone and my watch fast. Easy to store in my circumstances, but for general use, it can be conveniently set somewhere while charging.

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

    Rated 5 out of 5 stars

    Great travel companion

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

    Great price, easy to carry, easy to use. Would highly recommend.

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

    Rated 5 out of 5 stars

    Cell phone battery backup.

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

    Powerful, easy to charge and long lasting. Also, a very good price.

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

    Rated 5 out of 5 stars

    Great charger

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

    fast charger for iphone and ipad. Great for travel!!

    I would recommend this to a friend