CHARGE CONTROL METHOD AND SYSTEM FOR VEHICLE

A charge control method for a vehicle is provided which includes charging a first battery when the vehicle is in an IG ON operational state, maintaining the IG ON operational state and monitoring a second battery voltage. The charge control method further includes charging a second battery, calculating a vehicle speed when the vehicle is in an EV READY state and adjusting the EV READY state of the vehicle to the IG ON operational state when the calculated vehicle speed is less than a predetermined speed.