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Customer reviews

Rating 4.6 out of 5 stars with 1120 reviews

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Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.7 out of 5 stars

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Cons mentioned filter

92%would recommend to a friend

Customers are saying

Customers often highlight the PowerCore III 10K mAh USB-C Portable Battery Charger's long battery life, compact size, and lightweight design, making it highly portable. Many appreciate its USB-C compatibility and the overall quality of the product. Positive feedback frequently mentions the charger's ease of use and convenient portability for travel. While some users noted occasional heating issues or compatibility problems with certain devices, these concerns were less frequently reported than the positive aspects.

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 54 Showing 1,061-1,080 of 1,120 reviews
  • Pros mentioned:
    Battery life, Size
    Tech Insider Network Member

    Rated 4 out of 5 stars

    Great little portable charger!

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have had a few other portable battery packs by Anker in the past and they have always worked very well for me. This one is no different. Right out of the box its roughly the same size as my Galaxy S20 phone, so its fairly compact and can easily fit in your pocket, purse, or glove compartment for easy access on the go. IT has 2 full size USB ports on the stop for charging your devices as well as a USBC connector for charging the batteries in the unit. I found it took a very long time to get the battery pack up to a full charge. So be aware it could take a while to get a full charge. I was at about 6 hours or so. That would be my only gripe about it. Other than that there's a black button on the front that you can press to see the level of charge left in the battery pack. There are 4 small lights that indicate the level. I found on my Galaxy phone it was doing the fast charge with this battery pack. I was easily able to get a few charges out of this pack so it would be a great option if you're out camping or something for a few days and need some portable power when an outlet isn't nearby. Anker puts out very high-quality products and I would have no problem recommending this to anyone who is looking for a portable charger. It's a quality product that will last a long time

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Size, Weight
    Tech Insider Network Member

    Rated 5 out of 5 stars

    Great for travel

    |
    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This battery pack is lightweight and includes its own carrying case. Plenty of juice to last the day if your iPad or phone need an extra charge. - If you're used to carrying the bulky 20-30 mAh battery packs, you'll appreciate this smaller size.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Size
    Tech Insider Network Member

    Rated 5 out of 5 stars

    Great power source

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The Anker - PowerCore III 10K mAh USB-C Portable Battery Charger does exactly what it advertises. This is a great external battery pack, about the size of a cell phone. It comes with a bag and USB A to C cable. There are two ports to charge multiple devices. From 10% it charged my Samsung phone with limited usage in 1 hr 45 min. Small LED lights show you the charge left in the battery. The only down side to this is it will not fast charge your devices which I always find useful for an external battery. It however is not advertised to fast charge so if this is what you are looking for there are other batteries in the ANKER line up that fast charge compatible. I also like the fact ANKER provides an 18 month warranty on this product. Overall for the price point I would recommend this unit.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life, Weight
    Tech Insider Network Member

    Rated 5 out of 5 stars

    I really like this charger

    |
    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Most of my battery chargers are a larger capacity, but the problem with that is they are extra heavy. I thought I would try a 10k mah capacity. One of the things I use them for is light displays at my events. I use battery chargers to power small display lights, small spotlights and mini turn table displays. I used this one for a tracing table light that I used to display pendants that are translucent. One event was 9 hours. At the end of it, the capacity lights were all still lit!!! That was tremendous! This will charge my phone over 3 times before needing to be charged itself. It's a great charger for anyone on the go because it will last all day and then some and still be fairly lightweight. Anker knows how to charge.

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

    Rated 1 out of 5 stars

    Look for another charger

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

    For some reason this battery charger will not charge my iphone, might return the item.

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We're really sorry you've encountered this issue!

      If possible, please let us know the model of your device(such as iPhone 6 or Galaxy S8) and try the following steps to see if the issue persists:
      - If another known working cable helps
      - If the PowerCore works properly with other phones/devices or not

      If those don't help, please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Pros mentioned:
    Charging speed, Size
    Tech Insider Network Member

    Rated 5 out of 5 stars

    Excellent charger

    |
    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a great charger. Charges my phones pretty quickly. Compact enough to carry in my smaller purses. Love having usb and usb-c options. Can’t go wrong with this handy little device.

    I would recommend this to a friend
  • Rated 2 out of 5 stars

    Old style

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

    Every company is moving to usb c type chragers. But this power bank has no usb output.

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We are sorry to hear you are not satisfied with this item. We really appreciate your feedback to make this item better.

      We are dedicated to ensuring your 100% satisfaction. Please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Rated 2 out of 5 stars

    Meh

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

    Charges slowly. Even with a usb c cable. Not great for cellphones. Maybe other devices.

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We're really sorry you've encountered this issue!

      To help us pinpoint the issue, please let us know the following information:
      - What model of the device you want to charge
      - If the device charges fine with another wall charger and cable
      - About how long it takes to charge the device (if it will charge fully at all)

      Please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Cons mentioned:
    Compatibility

    Rated 1 out of 5 stars

    Makes no sense

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

    Not compatible with iPhones I will be returning this item

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We're really sorry you've encountered this issue!

      If possible, please try the following steps to see if the issue persists:
      - The model of your device (such as iPhone 6 or Galaxy S8)
      - If another known working cable helps
      - If the PowerCore works properly with other phones/devices or not

      If those don't help, please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Rated 2 out of 5 stars

    Cheap feel

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

    Seen better charges for way cheaper feels cheap and only has two USB ports for charging

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We are sorry to hear you are not satisfied with this item. We really appreciate your feedback to make this item better. The USB C port is an input port which charges the battery only.

      We are dedicated to ensuring your 100% satisfaction. Please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Pros mentioned:
    Battery life, Charging speed
    Tech Insider Network Member

    Rated 4 out of 5 stars

    Solid Battery

    |
    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good choice for a portable battery charger. I got about 2-3 almost full charges before the battery ran out. The battery has a USB-C input and two USB-A ports for output. Charging speed is pretty good; I can get about 20% back fairly quickly. It's pretty standard size, about the size of a smartphone. I wish they could start making these things a little smaller. The main reason I gave it only 4 stars is because it doesn't have wireless charging. Wireless Qi charging is so fast and convenient these days I'm not sure why they make batteries without it.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Don’t waste money with this charger

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The worst charger ever!! Is a waste of money. I bought it to use it when I travel and use it only a few times 5 times will be a lot I try to use it, and it doesn’t work anymore. Don’t waste your money with this brand of chargers. I don’t know why is even at Best Buy.

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We're really sorry you've encountered this issue!

      If possible, please try the following steps to see if the issue persists:
      - To recharge the battery itself, try another wall charger, wall outlet, and cable
      - To charge another device, try another cable and try the powerbank on another device

      If those don't help, please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Rated 1 out of 5 stars

    Disappointed.

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

    Because of weather patterns and not relying on electricity I purchased this battery charger. Either the cord the sales person said was the correctly matched cord for it, well, it wouldn’t charge. Not cheap. Disappointed indeed. Still don’t have a back up battery charger.

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We are sorry to hear you are not satisfied with this item. It seems the salesman provide the wrong information for you, for this issue, please contact Bestbuy to solve it.

      We are dedicated to ensuring your 100% satisfaction. If you have any other concerns, please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Pros mentioned:
    Charging speed, Portability

    Rated 5 out of 5 stars

    Anker portable charger

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

    This is my 2nd charger from Anker. The only reason I had to buy it again is because I lent my 1st one to someone and they lost it. The unit is easy to carry and charges my phone quickly. Love it and would buy again if this one gets lost too.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    USB C

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

    USB C Does not do what is advertised. I contacted Anker about this and they claimed that USB C is for recharging the bank only. DO NOT BUY THIS.

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We're really sorry you've encountered this issue!

      To get to the bottom of the issue, please let us know the following:
      - If that port works when using another cable
      - If the port works fine with another device

      If those don't help, please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Rated 1 out of 5 stars

    Unhappyproduct

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

    I only got to use it once. Never dropped it or wet it and i doesn't charge anything anymore the charging light blinks and never goes over the second blue light it just blinks

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We're really sorry you've encountered this issue!

      If possible, please try the following steps to see if the issue persists:
       - To recharge the battery itself, try another wall charger, wall outlet, and cable
       - To charge another device, try another cable and try the powerbank on another device

      If those don't help, please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Pros mentioned:
    Battery life, Weight

    Rated 5 out of 5 stars

    Compact and easy to use.

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

    I've only used this a few times fo far but it works great and is light weight which fits the bill for me. Battery lasted all day and was easy to plug into my phone. I would purchase it again.

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

    Rated 5 out of 5 stars

    Wonderful Device

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

    I purchased this item because I was traveling and it definitely came in handy when we were out sight seeing. It gave me the ability to seamlessly charge my phone. Wonderful device!!

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Terrible charger

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

    Not good at all!!!!!! It doesn't stay charged long enough for you to even charge your phone worst phone charger ever

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We're really sorry you've encountered this issue!

      If possible, please let us know the model of your device(such as iPhone 6 or Galaxy S8) and try the following steps to see if the issue persists:
      - If another known working cable helps
      - If the PowerCore works properly with other phones/devices or not

      If those don't help, please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker

  • Rated 1 out of 5 stars

    Less quality powerbank

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

    This power bank does not charge my phone properly. My phone says to use the appropriate charger.

    No, I would not recommend this to a friend
    • Brand response from Anker Team
      Posted .

      Thank you so much for sharing your experience. We're really sorry you've encountered this issue!

      If possible, please try the following steps to see if the issue persists:
      - The model of your device (such as iPhone 6 or Galaxy S8)
      - If another known working cable helps
      - If the PowerCore works properly with other phones/devices or not

      If those don't help, please reach out to us via support@anker.com or call us at +1 (800) 988 7973. We are more than happy to assist you further.

      We offer an 18-month warranty for this product, plus lifetime technical support. Our standard for responding to email quests is less than 24 hours, and we look forward to hearing from you! anker