no, I´m not using VoodooBattery.kext, after installation problems I avoid most Voodoo.. ;)
(ok, the PS2Controller is Voodoo-based, well..)
I guess the battery is crappy, I used it over a year together with AC, so..
(it is blinking 3x orange and 1x blue, it is to the right, above the Blutooth...