With the wide use of energy storage devices such as batteries and supercapacitors, the current trend is to simplify battery charge and discharge management. A bidirectional DC/DC converter can accomplish this to maintain a healthy battery and extend battery runtime. The bidirectional converter uses one powertrain to implement the charge and discharge operation. This paper describes how Renesas Electronics has integrated bidirectional control into its latest controller, the ISL81601, enabling easy implementation of on-the-fly reverse-direction power flow and control.