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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 28 Showing 541-560 of 2,150 reviews
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    I have the POWER!!!

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

    Great portable charger that holds a lot, I mean a lot of charge in it. Made by Anker; I haven't had any bad experiences from Anker yet. I love their products. Honestly, I haven't been using this to charge my phone. I'm using it to power other 5V devices and it provides the current I need.

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

    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 previous power bank is unbranded power bank 10000mah...been use for 1year then totally dead...I research for a reliable power bank brand...Seems like this is a trusted brand...I love the quick charge 3.0 , super fast charge my mobile...Will get back to Best Buy for the extra protection....

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

    Rated 5 out of 5 stars

    Great for the wilds of Alaska

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

    I use this to keep my phone, which I use for photos, etc, alive and well during the cold, wet outings of Alaska hunting expeditions.. It works great and is very dependable. There are others on the market and everyone I know that uses chargers says this is the best choice--and I agree.

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

    Rated 5 out of 5 stars

    Great battery power

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

    Was skeptical of this brand over Mophie but I decided to give it a shot. Couldnt be happier. This charger charged quicker than a mophie 10,000 mAh and after 3 full charges of my iPhone Xs Max, it still showed full charge.

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

    Rated 5 out of 5 stars

    Impressed by how much this holds

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

    Can easily charge my phone, tablet and phone again with a single full charge. I also really like that it is capable of doing rapid charge with my Galaxy s9+. Only negative is how long it takes to actually charge the powerbank itself. When fully drained it takes overnight to recharge it.

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

    Rated 5 out of 5 stars

    Great portable charger

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

    One November day my power went out. Normally not a big deal but on this day it stayed out for over 9 hours. Around the third hour all three of my devices were at less than 10%. I vowed that day it wouldn’t happen again and guess what? It hasn’t.

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

    Rated 5 out of 5 stars

    Lots of power

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

    This power core is great! It takes about 8 hours to fully charge but it'll last you several charges before it runs out of juice. Its perfect for when you're camping and need to recharge your cell phone.

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

    Rated 4 out of 5 stars

    Only used once but so far so good

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

    Only used once so far to keep my solo shot alive during a game as there was limited time between games to charge, did the job. Instructions/tech/troubleshooting could use a bit more detail, and the charge cord should definitely be longer. Easily portable size and (rated) with ample power. Hopefully I won't need the 2 year warranty but it did factor in my decision to purchase something I probably won't use often, for those on the go without access to power it's a no brainer...

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

    Rated 5 out of 5 stars

    Great portable to keep in your possession!

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

    This is a great item to have in your possession when dealing with multiple gadgets! This gadget charges more than one device at a time and gives your devices good battery life! It also last a long time allowing you to charge the same device again if necessary.

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

    Rated 4 out of 5 stars

    Long Lasting Charger

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

    Great long lasting charger. Takes a while to fully charge, but it charges items for a while, too. A bit heavy, but great overall.

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

    Rated 5 out of 5 stars

    20 amps of reserve for power outages

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

    With PG&E's recent pre-emptive power outages, mobile phones and tablets become critical to being able to communicate. The Anker 20 amp power pack delivers. Just plug the Anker into your phone or tablet, and it powers them back up and you are good-to-go.

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

    Rated 5 out of 5 stars

    Long lasting.

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

    I travel for extended periods in Asia , so I need to keep all my devices charged. The power pack charges my 2 phones, earbuds , mobile hotspot, and anything else I use. I only re charge it maybe every 3 days. Just wish it had a few more charging ports

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

    Rated 5 out of 5 stars

    Best Portable Charger Ever!

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

    The Anker - PowerCore portable charger is great! I use it all the time as I'm always away from a standard power source. It allows me to charge all of my devices multiple times before needing to be recharged itself. It's amazing!

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

    Rated 5 out of 5 stars

    Never travel without it!

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

    I never go on a trip without this charger. My partner and I go on multi-day backpacking trips and this charger has kept both my phone AND her phone charged without issue. Excellent quality. No complaints.

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

    Rated 5 out of 5 stars

    Long life

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

    I have had this battery and brought it with me for 5 full days of -20 e Weather in my jacket. I have charged my go pro batteries 6 times and my phone 3 times. And still have yet to re charge this. I still have 3/4 battery left. I like the life of it quite a lot.

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

    Rated 5 out of 5 stars

    Awesome portable charger

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

    This charger is awesome. I like that it came with a small pouch. The quick charge side was a life saver for me. I was traveling overseas and the outlets are different. This charger lasted for roughly 3 days before I has to recharge it. It was definitely worth it.

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

    Rated 5 out of 5 stars

    saved my vacation

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

    Didn’t have to worry where to charge my phone at the airport and my 4 hour flight. Always not enough phone chargers at the airport. Same with hotels especially if you’re on vacation with 5 adults and 2 kids, everyone need to charge their phone and iPad.

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

    Rated 5 out of 5 stars

    Bank of Power

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

    I love my new portable charger power bank! It is just what the doctor ordered to ensure your mobile stay charged when away from an electrical receptacle! It is worth paying a little extra to get the convenience you need! It does the job quickly!

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

    Big powerful charger

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

    Got this as a replacement for a smaller portable charger. It is fantastic in almost every way. It holds a huge charge, allowing me to fully charge my phone several times before needing a lengthy recharge itself. It has quick charge capabilities, allowing me to charge in no time. The two ports allow me and a friend to charge simultaneously. It has a button to light the power level indicators, showing how much charge is left. The thing is huge, being a little longer, twice as thick and just a little less wide than my 6" phone. It is heavy at almost a pound. It comes with a nice mesh bag to carry it in. The problem is the charger is slippery in the bag and when I held it open side down, the charger wanted to fall out. If you don't mind it's girth, are mindful of it's slipperiness, and don't mind that it requires a long recharge, this is a great portable power bank

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

    Rated 5 out of 5 stars

    Excellent Product

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

    Recharged my phone multiple times without needing to recharge the portable charger. Not only have I been able to get multiple charges, it recharges faster than a typical iPhone charger (can't speak for android devices or tablets, only iPhones). Highly recommend!

    I would recommend this to a friend