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Customer Ratings & Reviews

Your price for this item is $49.99

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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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 29 Showing 561-580 of 2,150 reviews
  • Rated 5 out of 5 stars

    Great for my Note 9

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

    Love this portable charger. I made sure it'd be good for my note 9 (with the big battery) when I picked it up and it is!! Used my phone USB wall adapter and it took about 5-7 hrs to charge. Traveled the next day (one way 4 hrs) and my phone was the GPS guide, bluetooth music, and boredom killer. I let my phone get to about 40% life and would plug it in to the adapter and it charges just like my wall plug!! Did that about three times and I definitely had plenty of life to go on the portable unit (60-75%) Super impressed! Definitely worth it. I opted for the size because I wanted to be able to bring the family phones back to life (all little batteries) if need be during hurricane season.

    I would recommend this to a friend
    • Brand response from Anker Team
      Posted .

      We are happy to hear that the Anker PowerCore 20000 was able to keep you charged up on your travels! Hopefully you will never have to use it for hurricane season BUT.. great to have just incase! Thank you for your support in the Anker brand! anker

  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Needed for Power on the Go

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

    If you need portable power then this an excellent product to consider. 20,000 mAh of available storage will keep an iwatch going for about a month of regularly charging, for example. This will keep your appliances charged and ready to go when needed.

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

    Rated 5 out of 5 stars

    Excellent Charging Time

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

    Upon the initial charge, it completely powered my Samsung S7 2 full times before needing to be re-charged itself, and it probably could have given another full charge if I pushed it. Great piece of mind knowing I'd have a fully-charged phone the whole time.

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

    Rated 4 out of 5 stars

    Charger

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

    Came in handy so much. Up to this day it’s still being used in the house or on the go

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

    Rated 5 out of 5 stars

    Does the job ..... again and again.

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

    Power when I need it and for those around me when needed too! Sat on the tarmac at Charlotte International the other day for 2.5 hours during a thunderstorm and those around me on the plane were thrilled (!) to have me offer power for their phones.

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

    Rated 5 out of 5 stars

    Lasts a long time

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

    This was a great purchase it does last a long time and charges my computer if I need it to. The one down side is that it takes a while to charge fully but if you plug it in overnight you wont have a problem.

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

    Rated 5 out of 5 stars

    Great back-up for phone or tablet

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

    This is the second one of these that I have bought. They are so helpful. I can charge my iPhone completely at least 6 times from this battery. It does need its own AC adapter, though. The little ones for the phones will overheat trying to charge these batteries.

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

    Rated 5 out of 5 stars

    Retains charge for a long time

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

    I use this occasionally, mostly on travel. Retains charge for a couple months so that even if I forget to charge before my trip, I still have a good amount for my devices. You cannot use this and charge it at the same time - that caused me problems.

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

    Rated 5 out of 5 stars

    Awesome charger/battery

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

    We went to Costa Rica and our phones would go dead because we were out all day long..this charger/battery is awesome. It charged 3 phones, while one was watching a movie when charging. Only used one bar. It does take a bit to charge, but it is worth it.

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

    Rated 5 out of 5 stars

    Great charger lasts for days!!

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

    Great charger that lasts for days. Took it to Disneyworld this past week and only charged it once during the trip. It is amazing. Only has 2 ports. Do not expect to charge phone quickly though. Very slow at charging phone from 0 to 100 however it does get the job done!

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

    Rated 5 out of 5 stars

    Great back up charger for travel

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

    This back up charger saved us while traveling thru Spain. Using your phone maps to guide how to use metro and walking the city of Barcelona can use up your phone battery fast thank goodness I had this back up charger that fit into my purse.

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

    Rated 5 out of 5 stars

    Great product - Anker Portable Charger

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

    Anker Portable Charger works great. Very useful for people on the Go, you don't need to worry about running out of juice on your phone or other portable device. This product is highly recommended.

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

    Rated 5 out of 5 stars

    Awsome

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

    Awsome portable battery pack that’s good to have when fishing and camping. This charger is able to charge my phone and tablets up to 6-7 times on a single full charge. I highly recommend this to anyone.

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

    Rated 5 out of 5 stars

    Great product

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

    My first portable battery purchase ever and I'm totally happy with it. Has a good amount of charging power for my Galaxy Note 8 and Nintendo Switch. It can usually go through 3 full charges on my phone and Switch before I have to recharge the battery. Love it!

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

    Rated 5 out of 5 stars

    Excellent addition to any tech arsenal

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

    Great device. Anker has come along way with their tech and their battery’s As well. Took a while to charge to 100% since it was sitting in the back room for a while. But great to charge multiple devices at once with plenty of juice to spare.

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

    Rated 5 out of 5 stars

    Excellent Power Source

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

    I purchased to recharge a PayPal reader. After fully charging unit I recharged the reader from 0% to 100% several times. Then charged iPhone a couple of times, iPad Air 3x and iPad Pro 4x. All this before needing to charge a second time!!! Very impressed so far.

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

    Rated 5 out of 5 stars

    Long-Lasting Battery Power

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

    I took this battery with me to on a 4-day trip, and this product literally lasted 4 full days worth of recharging my iPhone (obviously not consistently). To have this much power reserve at my disposal was a life-saver during my 4-day video project.

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

    excellent backup resource for your devices.

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

    The Anker model has several styles. I felt it was a good resource when I'm on the road

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

    Rated 5 out of 5 stars

    Long lasting 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.

    This charger is heavy. It can not be easily placed in a small purse or a pant pocket. However, it is a wonderfully long-lasting charger that has stayed charged at least three days without being charged itself. I am glad that I bought it.

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

    Rated 4 out of 5 stars

    Solid charger, tons of juice, bit bulky

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

    Does a great job, actually keeps up with my phone using Waze while I'm driving, which my car doesn't even do. That said, you could put this thing in a sock and fend off a pack of wolves. It's heavy and a lot larger than I'd anticipated buying it online. If you need portability, this ain't it. If that's not a concern, it's an easy recommendation.

    I would recommend this to a friend