ACPIBAT(4) BSD Kernel Interfaces Manual ACPIBAT(4)
acpibat -- ACPI control method battery
acpibat* at acpi?
The acpibat driver supports the ACPI Control Method Battery interface
between the battery and the host. Information about the battery, such as
capacity, recharge rate, voltage, and serial number, is available through
this driver. Battery status is updated through an event triggered when a
battery changes state (such as starting to charge) and, as a failsafe if
the system does not support passing such events, every 10 seconds. Bat-
tery status can be monitored using sysctl(8) or sensorsd(8).
acpi(4), intro(4), sensorsd(8), sysctl(8)
The acpibat driver first appeared in OpenBSD 3.8.
The acpibat driver was written by Marco Peereboom <email@example.com>.
Some systems do not propagate battery insertion up to the driver.
Smart Battery Specification-based batteries are not supported.
BSD April 30, 2017 BSD