Okay my 2008 ford edge has been doing this same thing. we have gotten 2 new batteries in the span of 10 months and the problem still persists. my dad says there’s a parasitic load on the car, because something is draining the battery. if i don’t drive it for 1-2 days then the battery dies… i’m reading this page and obviously this is a different problem than just an old battery. i don’t know what i should do though.