Techniques and mechanisms for improving an efficiency of power delivery resources. In one embodiment, switch circuitry is operated based on an indication from an integrated circuit (IC) die that circuitry of the IC die is ready to accommodate a low power state which disables a delivery of power to the IC die by a voltage regulator (VR). The switch circuitry is operated, based on a control signal is also used to disable said power delivery, to disable or otherwise prevent one or more conductive paths which are each between a respective two of a battery pack, a voltage regulator, or a battery charger. In another embodiment, the low power state enable a rail for circuitry which is to provide a real time clock signal to the IC die, but disables any other rails which power the IC die.