Battery draining fast

Thanks for all the suggestions. I did disconnect the battery last night . I had that horrible thought it might go up in flames . Spent Christmas Day cleaning the engine compartment .
Yesterday trying to figure it out . I may have shorted the alternator .Maybe one of you veterans could tell me the harness at the generator there was a purple wire that goes to a temperature sender I think . A green wire to the alternator and back to the regulator on the firewall . There was another green wire that looked like it was cut and was the exact length of the grn wire on the regulator I sliced them together and plugged both greens to the alternator . Can any one tell me what that 2nd green wire is supposed to be connected to.

Thanks Bud27