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PowerCore III 20K is a slim and powerful portable 20000mAh battery. With two USB-A port outputs and one USB-C PD input, this is all you need as your charging companion. 


Rating 4.7 out of 5 stars with 1170 reviews

94% would recommend to a friend

Rating by feature

  • Rating 4.6 out of 5 stars

  • Rating 4.7 out of 5 stars

  • Rating 4.8 out of 5 stars

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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.

  • Rated 5 out of 5 stars


    Owned for 3 weeks by when reviewed.

    Portable powerful and reliable when you don’t have time to look for an outlet and you’re running all around and 95 hours of charge you can beat it. Highly recommend it.

  • Rated 5 out of 5 stars

    Best charger ever!

    Owned for 11 months by when reviewed.

    It’s an amazing charger! I bring it everywhere with me. It last around 3-4 days. The only thing that sucks is that it does take a long time to charge but besides that it’s a great charger.

  • Rated 5 out of 5 stars

    Best power bank!!

    Owned for less than 1 week by when reviewed.

    Rapid cell phone charging, handy during trips and power outages!!

Anker - PowerCore III 20K mAh USB-C Portable Battery Charger - Black

Your price for this item is $52.99
The previous price was $59.99

4 payments starting at




20000 milliampere hours
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