Recently, my mbp has been having problems holding a good charge for long. When plugged in, and fully charged, it only reads as high as 96%. The other day, it just randomly kept shutting off on me, with around 25% left with no warning (when I plugged the wall charger in, it no longer shut off on me). Sometimes, the charge will drop quickly out of nowhere; i.e. from 30% to 8% in a matter of a few short minutes with nothing more than simple internet browsing. I've re-calibrated it a couple of times, but still very little to no improvement. I also downloaded coconutBattery, and according to that, my battery capacity is at 72% with only 71 load cycles... correct me if I'm wrong, but doesn't apple say it should be something like 75% at 300 cycles??