Battery keeps dying and when jumped and put in gear theres a loud noise

What is your question?

The loud noise is coming from rear 4x4 push button lights arent light on 2hi 4lo or 4hi and when i put it in gear still holding in brake my mph goes up not high but like 5 or 6. Not sure of the issue just happened wasnt like that when i got out got back in and wouldnt start got a jump and all of this