Anker’s ubiquitous Astro series of USB battery packs are some of the most popular items we’ve ever posted, but today we have the best deals we’ve seen on their brand new PowerCore line.

PowerCore chargers feature high quality Panasonic battery cells that can output a ton of power (3 amps on the smallest model, 4.8 on the larger ones) to charge phones and tablets at full speed, even simultaneously. And if you own a new USB-C powered MacBook, these are some of the only battery packs that can charge it at a reasonable speed. I’m also a big fan of their new matte finish, which resists fingerprints and should be a little less slippery than the ubiquitous Astro series.

Anker PowerCore 10400 Portable Charger ($17) | Amazon | Promo code ZDSELJFM

Anker PowerCore 15600 Portable Charger ($24) | Amazon | Promo code ZOMD5MWW for the black model. 2ZAOCALU for white.

Anker PowerCore 20100 - Ultra High Capacity Power Bank ($32) | Amazon | Promo code E7E87VGN for black. O8XUQ7YG for white.

Bonus: If you don’t mind its less-refined design and lower output power, this high capacity KMASHI battery pack is also a great deal. [Kmashi 20000mAh External Battery Power Bank, $24 with code BDVZVC3F]

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