[Flying Mac Chap]

I bought an albook about 5 weeks ago. Since then the battery capacity's gone down to about 2.5Ah. In addition to that, the battery seems to run down to about 50% normally, after which, it seems to run down to about 3 or 4% in 2-3 minutes. Has anyone else had this problem?
I've called apple support and they told me to reset the power management unit and also see how long (exactly) it takes for the battery to run down (I'm doing this at the moment). In the mean time, does anyone else have any suggestions, or has anyone else had a similar problem?
Thanks in Advance

R.S.

[anaphora68]

Run a search for this, it has been discussed ad nauseum in the forum.

[Flying Mac Chap]

Right, just got off the phone with apple... Resetting the power management system stopped the rapid discharging at around 50%. The capacity is still, however, just over 2.7Ah and gives me a battery life of about an hour and ten mins - so they're sending over a replacement... yay!