Methods and system for reducing battery leakage in an information handling system

A method for reducing current leakage in a battery in communication with an information handling system (IHS). The method includes providing a battery management unit (BMU) in the battery, the BMU in communication with an embedded controller (EC), the BMU in a standby mode while the battery is coupled to the IHS, and configuring the BMU to exit the standby mode if an external power supply is coupled to the IHS. Also disclosed is an IHS which includes an EC in communication with a BMU, a power switch in communication with the EC and the BMU, and a control switch configured to be switched on if an external power supply is coupled to the IHS or if the power switch is activated without the external power supply, wherein the BMU unit exits the standby mode if the control switch is switched on.