It takes approximately 1.5 hours to charge the earphones in the charging case when on the move. It takes around 2 hours to fully charge the earphones and the charging case at the same time via USB-C and 2.5 hours using the (Qi) wireless charging pad. If the battery charge of the earphones is low, 20 minutes in the charging case gives you up to 2 hours of playback.
A fully charged case provides two-three additional earphone charges, depending on whether ANC is on or off.
Please note that the charging time depends on the charging adapter that is used. The maximum recommended charger is 5V / 3A.