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Customer Ratings & Reviews

Customer reviews

Rating 4.8 out of 5 stars with 2150 reviews

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Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.9 out of 5 stars

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Cons mentioned filter

97%would recommend to a friend

Customers are saying

Customers admire the PowerCore 20,000 mAh Portable Charger's impressive battery life and its relatively compact size, making it portable and convenient. Many appreciate its multiple USB ports and compatibility with various devices. While some find it a bit heavy, the overall positive feedback highlights its value and usefulness as a portable power source.

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 5 Showing 81-100 of 2,150 reviews
  • Pros mentioned:
    Battery life, Charging speed, Size

    Rated 5 out of 5 stars

    The perfect size, quality and price

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

    It is good for long day outing where we need to recharge the Iphone/Ipad, quick charge, good size, not so heavy. Great!

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

    Rated 5 out of 5 stars

    Great Charger

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

    Charger works perfect. Once It was fully charged, I have charged my phone many times to give me that extra boost and barely has dropped in charge itself. Fast charger works better and seemingly faster than some home ones.

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

    Rated 5 out of 5 stars

    great charger

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

    This is a very good charger. Has large capacity and allows the connection of two devices through the USB ports.

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

    Rated 5 out of 5 stars

    Great

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

    Best purchase lasts long and chargers quickly. A bit heavy in weight but it’s understandable

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

    Great product and didn’t have any problems. Holds a lot . Happy easy too hook up .

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

    Rated 5 out of 5 stars

    Plenty of juice, kind of bulky.

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

    I picked up this charger for the storage, and it’s been great, so far! Packs plenty of juice and holds it for quite some time, even after charging my phone from about 18% to 80. It is a bit large and heavy, however. I keep mine in my work bag incase I need a quick charge when I’m out and there are no outlets or in my bag when hiking. So, if you’re looking for something to keep in your pocket, this might not be the one for you.

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

    Rated 5 out of 5 stars

    Best backup power brick I've ever had

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

    Fast charging, smart charging, and you can do both at the same time. With a full charge on this bad boy, I can re-juice my Galaxy s8 active and my work phone, iPhone XR twice each from 20ish percent back above 90 percent before the power brick blows its load. I've even dropped this sucker from a 30' roof over the edge accidentally and it got ran over by a leading SUV... STILL WORKS LIKE A CHARM.

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

    Rated 5 out of 5 stars

    Juice Bar for Travellers

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Ever been stuck at a rare charging station at an airport, sixth in line to charge your stuff? Well, this is the answer to pass the charging station and go directly to the adult beverage station. For me, not to small... Not too big... Just right. For my iPad, and iPhone. Flights are usually 13-17 hours from home. Enough juice to keep everything topped off and plenty left over. Carry it in my pack on hiking trips too!

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

    Rated 5 out of 5 stars

    Long lasting charger

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

    Hands down the best portable charger I’ve ever owned. I charge it up once a week and use it for my personal cell phone and my device for work. I’m overall happy that it charges my devices pretty quick and still has left over battery. I work long 12 hour shifts 4 days out of the week and It’s constantly connected. More than satisfied for this purchase especially since I got it on sale. Well worth the money..

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

    Rated 5 out of 5 stars

    Best brand for powerbanks and chargers!

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

    I bought 2 of these, 1 for Christmas and 1 for a b-day gift, and I’ve heard nothing but positive feedback from my sister and sister in-law on how quick* it charges their device and that its hard to drain the powerbank after multiple charges, which is a good thing. There is a 10000mAh powerbank $5 less than this and is smaller, but has half the amount of mAh. So it really depends on you if you prefer compact size or mAh size.

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

    Rated 5 out of 5 stars

    Highly recommend

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

    Purchased for a 3-day field trip with my kid’s class. Our destination was 4+ hours away & I knew we’d need to charge both phones during that time (we were on a charter bus but sometimes the outlets are too far away & can damage charging cables). Worked perfectly & barely used any power from the device. Very quick charge for our phones & for the device itself.

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

    Rated 5 out of 5 stars

    A solid preformer.

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

    You can't go wrong with this item. USB 3.0, fast-charge capability, large capacity for a great price.

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

    Rated 5 out of 5 stars

    Happy with how well it functions!

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

    I love the charger! Holds a lot, charges fast, and lasts long. Very happy with it!!

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

    Rated 5 out of 5 stars

    Great Backup Charger

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

    We bought this to take to an amusement park. It charged 4 large capacity cell phones (iPhone 7plus and Note9) twice and still had one dot left of power. Because of the large capacity it takes about 12 hours to charge completely. Compact and light enough to keep with a cell phone. Great price and customer service from Bestbuy as always.

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

    Rated 5 out of 5 stars

    Works like charm

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

    This is one of the best portable charging batteries. I used this to charge my two iphones at a time and it charged them like any other wall charger would. It has a fast charging port, but I didn't test fast charging as it is not supported on iPhones. I got around 6 full charges on my phones (3 on iphone 6+ and 3 on iphone7+).

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

    Rated 5 out of 5 stars

    Absolutely amazing

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

    This thing is an absolute life saver! I always have it with me. Sometimes I forget that it’s not a free energy coming from space because it never seems to die! I do a lot of back packing and camping and I’ve dropped it numerous times and doesn’t seem to be affected at all my heat or cold. Absolutely amazing value for money everyone should invest the money! You never know when your gonna need it

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

    Rated 5 out of 5 stars

    Best purchase ever!

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

    This is the best Powerbank that I was happy to purchase. Especially since it actually stops charging my phone once it's at full 100%. And at 20,000 mah, I can charge my phone and my wireless earbuds at the same time. Those 2 USB ports come in handy the night before I have to go to work. I charge the powerbank once a week which is better than every other day. You can't go wrong with this Anker powerbank.

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

    Rated 5 out of 5 stars

    Great

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

    Holds tons of power, very durable, and I can plug in whatever usb I want into it!

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

    Rated 5 out of 5 stars

    Worth Every Penny

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

    Simply put, in my honest opinion, this has got to be the top of the line portable, high speed charging solution. At 20,000 mAh, there aren't many other chargers out there that can match that degree. The addition dual charging ports that are Quick Charge 3.0 capable and one that scales with the device, I don't think I've seen or heard of a device that delivers more and in such a sleek and sturdy design.

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

    Rated 5 out of 5 stars

    Happy with this purchase

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

    Bought this to use while traveling, as I believe a power bank is an essential travel accessory. While this takes a while to charge (needs to charge overnight), the power lasts for a long time (multiple charges on iPad and iPhone). The battery capacity of 20,000 is excellent, and the product is compact and portable. Definitely recommend.

    I would recommend this to a friend
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