2001 honda civic lx won't start have no power no lights and has a full battery. What's wrong with it?

2001 honda civic lx won't start have no power no lights and has a full battery. What's wrong with it? - 1

Did you check your battery cable for tightness and rust/corrosion.

What has done to the vehicle prior to the "Black-out"? A jump start? Look into the under hood fuse box, there's only one big dark BLUE fuse with the rating of 80A: Fuse # 19