So I was able to pick up a couple of 24" flat screen LED TVs for a great price. I noticed they have a plug for the wall similar to that of other electronics and took a good look at it. Now I am not an electrician so maybe someone else can explain this but it seems like this plug pulls 120v from the wall to deliver 12v to the TV itself and if I am reading it right draws 3 amps to power the TV. If this is actually the case, can the TV be directly wired to a deep cycle battery and work? I took a pic of the plug for reference. Any explanation would be appreciated, thanks!