I am new to getting a Dash Cam. I'm shopping for the BlackVue DR650-1CH. I'm only getting this for the Parking Mode for while I'm at work for 8 hours. I see people talking about hard wiring or even the extra battery pack so the car battery won't die. I really don't see how a small piece of electronics will kill the car battery for an 8 hours period while at work. Please give me your thoughts.