There is presented a method for wirelessly charging, a plurality of rechargeable devices, wherein at least one rechargeable device is an ear level device, such as a hearing aid, said method including appointing a master device among the plurality of rechargeable devices, for each of the remaining rechargeable devices, transmitting information regarding a current battery status to the master device, such as wherein the step of transmitting information regarding battery status to the master device is carried out via a first communication channel, determining a charging profile of one or more rechargeable devices based on the plurality of information regarding current battery status, charging the one or more rechargeable devices based on, such as according to, the charging profile, such as wherein communication between the master device and a charger is carried out via a second communication channel such as a wireless communication channel, such as Bluetooth® or Bluetooth Low Energy or proprietary protocol).