Year-End SaleEnds 1/1/26. Limited quantities. No rainchecks.

Skip to content
Gift Ideas
Main Content

Customer Ratings & Reviews

Your price for this item is $13.99
Clearance
The comparable value price is $59.99

Customer reviews

Rating 4.7 out of 5 stars with 1403 reviews

Rating Filter

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

Pros mentioned filter

Cons mentioned filter

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 12 Showing 221-240 of 1,403 reviews
  • Pros mentioned:
    Battery life, Charging speed

    Rated 5 out of 5 stars

    Recommend

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

    Portable lasts me a long time for it to be put back to charge, charge my phone like 4 times

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

    Rated 4 out of 5 stars

    Works Great

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

    I like the size of the battery pack. It charges pretty fast and works well. Used it for charging my phone and watch as well as my heated vest. Works like a charm. Would recommend.

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

    Rated 5 out of 5 stars

    Charger

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

    This is my second one. I keep one at work, and one at home. Very fast charging, lasts a long time.

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

    Rated 5 out of 5 stars

    Good battery pack

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

    Great battery pack. Lasts a long time and charges relatively quick for how big it is. I carry it with me everywhere.

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

    Rated 5 out of 5 stars

    You need this for all types of emergencies

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

    This is such a great charger. Anker has always been a brand that I trust and feel comfortable purchasing again and again. We've used this charge multiple times and has saved us during storms to recharge our phones and other devices. I would highly recommend picking one up

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

    Rated 5 out of 5 stars

    Great, powerful portable charger.

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

    Great, powerful portable charger. We take on trips and longs days away from home. Quickly charges multiple devices at the same time.

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

    Rated 5 out of 5 stars

    Good purchase

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

    Irs a bit heavier than I’d prefer but that’s not a problem. It’s a compact and mighty unit.

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

    Rated 5 out of 5 stars

    Useful when no charging station available

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

    Great product. Worked well on recent trip. Charged phone pretty quick. It is a little heavy. It takes a while for the charger to charge

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

    Rated 4 out of 5 stars

    It’s decent. Good not great

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

    Charges my iPhone 14 pro max about 2.5 times from 0-100% before dying. Chargers my phone fairly quick but charging the battery pack itself can take about 6hrs.

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

    Great Product..Easy to Carry on You

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

    I really like this portable charger for the price. If you're not dependant on frequently using a portable charger this is a great choice. If you frequently use a portable charger then you might want to go with a more expensive model that charges itself much faster. This power bank takes about 8 hours to fully charge.

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

    Rated 5 out of 5 stars

    Worth it.

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

    I love it. Charges my Samsung Galaxy s21 ultra pretty quickly. I can get 2 full charges out of it. Great to have on hand if youre a delivery driver.

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

    Rated 5 out of 5 stars

    Portable charger

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

    This is so awesome, charges fast, its a little heavy, but worth it.

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

    Rated 5 out of 5 stars

    Love it

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

    Love this. I bought to use for my iPad but I’ve used it more for my phone. It works great I’m very happy with this purchase

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

    Rated 5 out of 5 stars

    Very good power bank!!!

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

    It charges devices very fast and is easy to use on the go. This is a great power source, and I would recommend this to everyone!

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

    Rated 5 out of 5 stars

    Back up battery

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

    Amazing back up battery at an amazing price point. Holds many hours of battery life and has a quick charge time.

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

    Rated 5 out of 5 stars

    Extra battery review

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

    A must have if your out all day and always need that extra battery juice. It's fast and its affordable.

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

    Rated 5 out of 5 stars

    definitely recommend

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

    I absolutely love this gadget! Every member of the household has one. My daughter is always on her phone so she pops it in the side pocket of her back pack and she's good to go. I always have mine with me just in case too. It holds the charge for a long time, so if the power goes out, you're good to go.

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

    Rated 5 out of 5 stars

    Bang for your buck. Feel the power

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

    Great power pack. Bigger than I expected and great for the price. Takes a while to charge but thats expected with the size. Definitely recommended

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

    Rated 5 out of 5 stars

    Good Product

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

    Good product. Charges iphone quickly. It does take a long time to charge itself, but does last a while on a full charge.

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

    Rated 5 out of 5 stars

    Phone Charger

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

    The charger exceeded my expectations. Worked perfectly during my flight to Hawaii

    I would recommend this to a friend