Regarding the installation check for non-working rechargeable batteries in the Quest 3/3S controllers: Please ensure the metal part of the Quest 3/3S controller rechargeable battery is correctly aligned with the power terminals on the battery cover, considering the plastic protective film. Feel free to reach out if you need any assistance! Is the magnetic Type-C interface easy to use? Yes, the magnetic Type-C interface is very easy to use. Just plug the cable into the charging dock, and attach the magnetic connector to the Quest 3/3S charging port. Gently touch to align and charge, making the process quick and convenient.