What could be draining the battery on my 2008 ford expedition

What is your question?

My battery keeps going dead on my 2008 ford expedition. Lately, every morning i have to have it jumped in order for it to start. It’s a brand new battery something in the truck is draining it. Nothing is being left on inside and i was told my alternator was good.

What makes this problem better or worse?

Nothing, it just wont start after being off when i don’t drive it for a day or two.

How long has your 2008 Ford Expedition had this problem?

About 4 months