Recharging control system and method for battery of electronic device

PURPOSE: A method for controlling the charge of a battery of terminal capable of reducing the cost and a system therefor are provided to use a linear charger, thereby implementing the quick charge. CONSTITUTION: A battery (200) is mounted on a terminal (100). A battery charger (300) is connected to the terminal. The battery charger provides a charging current. The battery charger charges the battery with electricity to the maximum margin current value. The maximum margin current value is greater than the rated current value.