12incher battery

i'm fairly sure it was 2.8 or so 2 months back, what i want to know is what others are?
Roger Merriman wrote on :

looking at that progam ibatt my powerbook's capasity is 2.643 Ah. and i'm fairly sure it was 2.8 or so 2 months back, what i want to know is what others are? its still gives me a fair battery life of 2/3 hrs or so.

but i'm a little concerend that it apears to be dropping, while i accept that it will loose capasity such is life, but its does apear to dropping a bit fast...

roger