Ugh, won't start

[ProfessorX5]

No start, no lights... charged up my jumper, but that gave it enough juice for the various lights to come on, and I could hear the fuel pump come on and a rapid series of 'clicks' at the front near the middle, but no crank.

Do bimmers require more juice than a normal car to start? Going to charge the jumper again and see if I can let the car slurp up some more power and see if it will start then.

Started fine yesterday, no issues. I'm hoping it's just a weak, but not totally dead battery or something worse, so I can at least get her started and drive over to Canadian Tire and buy a battery.