A powered medical device storage case , comprising: a case , configured to hold an implantable electroactive medical device with an integrated battery ; an energizing system , configured to provide electric energy to keep a charging state of the integrated battery above a threshold; and an energy transfer system , configured to receive energy from the energizing system; and to transfer the received energy to the integrated battery of the implantable electroactive medical device; an energizing controller , configured to control the transfer of energy from the energizing system by the energy transfer system to the integrated battery of the implantable electroactive medical device to at least partially compensate a discharging of the integrated battery during a time period between a manufacture of the battery of the implantable electroactive medical device and implantation of the implantable electroactive medical device, wherein the charging state of the implantable electroactive medical device is held above the threshold during the time period; and a battery monitor , coupled to the integrated battery of the implantable electroactive medical device and to the energizing controller, configured to monitor a discharging characteristics of the integrated battery of the implantable electroactive medical device, and to generate a corresponding monitoring signal for the energizing controller. a case , configured to hold an implantable electroactive medical device with an integrated battery ; an energizing system , configured to provide electric energy to keep a charging state of the integrated battery above a threshold; and an energy transfer system , configured to receive energy from the energizing system; and to transfer the received energy to the integrated battery of the implantable electroactive medical device; an energizing controller , configured to control the transfer of energy from the energizing system by the energy transfer system to the integrated battery of the implantable electroactive medical device to at least partially compensate a discharging of the integrated battery during a time period between a manufacture of the battery of the implantable electroactive medical device and implantation of the implantable electroactive medical device, wherein the charging state of the implantable electroactive medical device is held above the threshold during the time period; and to receive energy from the energizing system; and to transfer the received energy to the integrated battery of the implantable electroactive medical device; an energizing controller , configured to control the transfer of energy from the energizing system by the energy transfer system to the integrated battery of the implantable electroactive medical device to at least partially compensate a discharging of the integrated battery during a time period between a manufacture of the battery of the implantable electroactive medical device and implantation of the implantable electroactive medical device, wherein the charging state of the implantable electroactive medical device is held above the threshold during the time period; and a battery monitor , coupled to the integrated battery of the implantable electroactive medical device and to the energizing controller, configured to monitor a discharging characteristics of the integrated battery of the implantable electroactive medical device, and to generate a corresponding monitoring signal for the energizing controller. to monitor a discharging characteristics of the integrated battery of the implantable electroactive medical device, and to generate a corresponding monitoring signal for the energizing controller. <EOS>