A wireless charger system for battery pack solution, comprising: a wireless charger apparatus for receiving a power source from the outside to transmit a power signal via a charging power transmitter block in a wireless mode; and a battery pack for receiving a power signal from the wireless charger apparatus in a wireless mode to charge power in a battery cell and supplying a power source to a portable terminal block, and a charge monitoring circuit block for checking a charging level of the battery cell and transmitting a charge level signal to the battery pack controller, wherein the wireless charger apparatus has an outer body composed of a resonant converter for supplying power to the battery pack and a wireless charger case having a central controller installed inside, wherein the wireless charger case has a protruded round portion formed around the rear edge and a display block provided as a slop surface in the front portion thereof, wherein a flat surface is formed between the protruded round portion and the front portion and a battery pack positioning block formed therein, the battery pack positioning block having a lower height than-the protruded round portion and the front portion, wherein a primary core block for transmitting power supplied to the battery pack is installed inside the battery pack positioning block to supply power to the battery pack disposed on the battery pack positioning block, characterized in that the battery pack comprises a battery pack controller configured to transmit a signal for adjusting the power signal from the wireless charger apparatus, wherein the signal for adjusting the power signal comprising a power save code signal to reduce the power signal when a voltage level of the power signal exceeds a reference voltage value, and wherein the wireless charger apparatus adjusts a parameter of the induced magnetic field based on the power save code, and wherein the battery pack controller transmits the charging level of the battery cell to the wireless charger apparatus, and the wireless charger apparatus displays the charging level of the battery cell on the display block. a wireless charger apparatus for receiving a power source from the outside to transmit a power signal via a charging power transmitter block in a wireless mode; and a battery pack for receiving a power signal from the wireless charger apparatus in a wireless mode to charge power in a battery cell and supplying a power source to a portable terminal block, and a charge monitoring circuit block for checking a charging level of the battery cell and transmitting a charge level signal to the battery pack controller, wherein the wireless charger apparatus has an outer body composed of a resonant converter for supplying power to the battery pack and a wireless charger case having a central controller installed inside, wherein the wireless charger case has a protruded round portion formed around the rear edge and a display block provided as a slop surface in the front portion thereof, wherein a flat surface is formed between the protruded round portion and the front portion and a battery pack positioning block formed therein, the battery pack positioning block having a lower height than-the protruded round portion and the front portion, wherein a primary core block for transmitting power supplied to the battery pack is installed inside the battery pack positioning block to supply power to the battery pack disposed on the battery pack positioning block, characterized in that the battery pack comprises a battery pack controller configured to transmit a signal for adjusting the power signal from the wireless charger apparatus, wherein the signal for adjusting the power signal comprising a power save code signal to reduce the power signal when a voltage level of the power signal exceeds a reference voltage value, and wherein the wireless charger apparatus adjusts a parameter of the induced magnetic field based on the power save code, and wherein the battery pack controller transmits the charging level of the battery cell to the wireless charger apparatus, and the wireless charger apparatus displays the charging level of the battery cell on the display block.