The case seems good and durable and provides approximately 1 full charge to the mobile phone. When both the mobile phone and power bank are charging together and they are empty, it takes about 3-4 hours to charge with a 25W charger (which is normal, as power banks usually charge slowly).

HOWEVER...

The only way to charge your phone with this case is through the charging port of the case, as the charging port of the phone is permanently hidden and occupied by the case's plug....resulting in VERY SLOW direct charging of the phone even when the power bank of the case is fully charged. It takes 2+ hours for the phone to go from almost empty to 80% full, while with the same charger directly to the phone, it takes less than 1 hour....no thank you....