I originally posted this message at insanelymac forum, but nobody responded. I'm hoping I can get help here before I decide to wipe my OSX installation.
I have a Dell Vostro 1520 running 10.6.3 vanilla. All updates have been applied using software update without any issues what so ever. Infact OSX runs so well that I hardly ever boot Vista which lives on a separate partition.
Recently I got a replacement battery from Dell under warranty, the previous battery would only provide me with 30 mins of run time. The new battery brought back the 1:45-2 hrs of run time I originally had with a new laptop. OS X ran fine with the new battery for a couple of weeks and reported a normal charge time, upto 1:45 depending on how discharged the battery was. A couple of days ago, I shutdown the laptop since sleep doesn't work. When I rebooted the machine the next morning, I noticed that the charge time was in excess of 14 hrs! Several reboots later the situation did not change and I began to suspect the new battery. I booted into Vista to check if the same problem existed under windows but Vista correctly reports a charge time of 1:40, so the problem is definitely with my OSX installation. Dell's website lists my 6 cell battery as 2200 mAh but System profiler reports it to be 48840 mAh! I could live with the problem but the low battery alarm keeps popping up everytime I disconnect the adapter. I've been cycling the battery to get a longer life, and its getting really annoying.
I've attached two screen shots showing the screen charge time displayed with the adapter plugged in and just after disconnecting the adapter. SystemProfiler reports VoodooBattery kext version 1.3.2
I'd really appreciate if someone could help me with this or point me in the right direction.