Ends 5/23 at 10PM PT. Electronics.woot! has the 2-Pack Samsung Super Fast Charging 25W USB Type-C Wall Charger (Black or White, USB-C Cable Not Included) for $21 - $5 off with coupon code WIRELESS [Exp 5/23] = $16 with free shipping for Amazon Prime members. $15 each at Amazon.

The single charger is also on sale for $13 - $5 w/ code = $8.