I was getting a flat battery which was being caused by the drain of my K2 system when the bike wasn't being used for a while. By connecting up a "delay off" relay which cuts power to the K2 system after a pre-determined time once the ignition is off, the problem is solved. The delay before cutting power ensures that the last video file is saved properly and the system shuts down before cutting power. Below is a link to the adjustable delay relay I purchased and also a wiring diagram to show how I wired the relay. I have mine set to a 30 second delay.