Charge wherever you are. Operate and charge the Philips SimplyGo battery while plugged in to a car, RV or other DC source. Use the SimplyGo DC power supply to plug in your system using the vehicle's cigarette lighter or DC power input. Whenever the SimplyGo system is running from a DC power source, the battery installed in your device will begin recharging. You can also use the SimplyGo device while it is running from a DC power source.