i am getting a similar error.
i had tried to replace my LCD and it was defective.
when i reinstalled the original LCD i get a flashing green and red light sequence on the battery light (battery in or no battery and only AC)
the sequence is: green (pause) green-red-green (pause) green (pause)green (pause)green
mind you the pauses are milli seconds but are obvious pauses when you not the green-red-green sequence.
if i attempt to disconnect power source and replug it is one red light.
the PC no longer turns on.
what could this be?
I am having the same issue with my Dell Latitude laptop. The battery light goes..Green ( puause) and then red (blinks/flashes 3 times).
Do i need a new battery??