I'm having a problem with this kext. When I've booted with battery, this icon appears after the finder starts but when I plugged the power cord, this icon never changes. The same happens when I've booted with power cord.
At the moment the only solution I've found was replace the kext with the debug kext.
Now when the kext's are loading and the VoodooBattery.kext (1.3.3 / taken from your site) loads, sometimes it gives KP. But when the VoodooBattery's loaded correctly the icon works very good and change when I plugged the power cord.
When I have a KP, the only solution is to boot with -f
My system use RC5 r11 v156 bootloader (the same occurs with other boatloader), Snow Leopard 10.6.3 in 64 Bits, Nvidia GT 110M & a patched DSDT.
Thanks in advance for your support.