During every major sales event, I rave about this portable Anker power bank that I purchased years ago. It's a fantastic charger that I still use today, so when I checked to see if it was on sale for this year's Amazon Prime Big Deal Days, I was surprised to see that a better version had been released, and there's already a great deal you'll want to take advantage of before the sales event ends.

Originally priced at $59, the Anker Nano Portable Charger (or Anker Nano Power Bank) is already a steal for what you get. Still, a 33% discount makes it much easier on the wallet, as you'll pay only $39 for this pretty fantastic portable charger. • Prime Day is LIVE now! See the full list of deals

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This versatile Anker portable charger could be a valuable addition to your

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