I have same problem on my HP nw8240 running Kubuntu Hardy. I have two batteries, but HAL reports four. If I compare it with gutsy where I get only these two:
/org/freedesktop/Hal/devices/acpi_C178
/org/freedesktop/Hal/devices/acpi_C177
On hardy I get additional two:
/org/freedesktop/Hal/devices/computer_power_supply_1
/org/freedesktop/Hal/devices/computer_power_supply_0
I have same problem on my HP nw8240 running Kubuntu Hardy. I have two batteries, but HAL reports four. If I compare it with gutsy where I get only these two: p/Hal/devices/ acpi_C178 p/Hal/devices/ acpi_C177
/org/freedeskto
/org/freedeskto
On hardy I get additional two: p/Hal/devices/ computer_ power_supply_ 1 p/Hal/devices/ computer_ power_supply_ 0
/org/freedeskto
/org/freedeskto
lshal output attached.