Review on 🔌 4-Pack Ailun USB Type C Adapter with Keychain - Sync and Charge for Galaxy s20, s20+, S20Ultra, S10, S9 Plus, MacBook, ChromeBook, and More Type C Port Devices by Matt Vanlaere

either i got a bad batch or something else but all four i received don't work. At best, they turn any decent charger into a slow charger, and I mean incredibly slow charger. Example: A fast charger with a good cable can charge a phone in an hour. Are you using a good micro USB cable (which charges other devices quickly) and this adapter? After four hours, the battery charge increased by 2%. It literally takes a day to charge 12% and a full week to charge the phone. That obviously makes them useless. Since there are so many other positive reviews, I guess I got a bad batch. The wires inside the shaft clearly cannot withstand the normal current. I know about cables, chargers and adapters. They don't work the way they should. And I've been delayed getting back to this, so apparently a day has passed where I can come back for an exchange.