While not the first of it’s kind, the Sharge Flow Mini Portable Charger is a unique take on the ultra-compatible USB-C power bank category that you can now score for just $16.99 today via the brand’s official Amazon storefront. Shipping is free for Prime members or in orders over $35. The Sharge Flow Mini debuted late last year at $40 on Amazon and sometimes fetches as much as $52. More recently it has been sitting in the $30 range, but with today’s on-page coupon you can knock it all the way down to $17 – this at least 45% off the going rate.