Can anyone help me out please

Car: 1991 Honda Accord Wagon

Problem: Car was running this morning but as I was reversing from the
driveway the car simply died

Symptoms:
1) I have been seeing the battery light go on and off for the past week
while driving. However, the lights, horn all are still working.
2) The alarm of the car comes on and I was not even able to turn it off with
my keys. Jiggled battery wire and finally it turned off
3) One month back the MAIN fuse was replaced because the car suddenly died
while driving


I can no longer start this car. Alarm comes on and goes off. Lights, horn
all working. Sometimes it make some noise like a fan running on the left
side under the wood while I am trying to start.

What could be the problem. Please help!