So, my MBP 2.16 core duo just started totally dieing at about 76 - 79% No sleep mode or any warning. Has 228 cycles and about this mac still thinks the battery condition is: good. Has been a great battery till now. Any ideas and what to do or do you think this battery is shot? Tried the recalibration but again only got to 78% before shutting the computer totally down. Thanks in advance.