Hi Weston!
I have first hand experience of lights and a stereo flattening a battery…………… I was on a beach, at night with an in-coming tide and ended up having to call the coast guard! But that, as they say is another story…….

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Would a DVD and screen use that much juice? Anyone want to own up/admit to having flattened a battery trying to watch a film or will I have to experiment myself??
As for my location in Cyprus, I’m mainly on the beach or water
Living at Akrotiri. And loving it with the Bongo. Must think of a name for him/her/it.