angeleye lit very dim although battery dead?

Hey everyone, im knew to this forum and ive took advice on searching around for similiar malfunctions someone has had in relation and have found yet nothing to help me out. I have a 2003 530i that ive owned for about 8 months now. In that time i had to replace my alternator cause she was becoming a dead. After that i found that my battery was slowly going as well. One night i came out and noticed my driver side halo light was in a dim pulsation type mode. Tried to start it but the car was completely dead(maybe about 3 clicks within). Thought that was weird as **** considering my battery was dead and that light was dim? anyways got a new battery,two weeks later here i am and its completely dead again. please help a man out,thank you

A bad FSU is the most common cause for battery drain. Do a search for FSU to determine if you are having any of those symptoms. Refer to the first stickied thread on this forum for guidance on searching this forum.