Laptop Battery Information FreeBsd

You can see full details of your laptop battery under freebsd  with acpiconf command :

-i 0 means first battery

[Thu Sep 01 root@freeslut ~]# acpiconf -i 0
Design capacity:       38880 mWh
Last full capacity:    12470 mWh
Technology:            secondary (rechargeable)
Design voltage:        10800 mV
Capacity (warn):       1944 mWh
Capacity (low):        388 mWh
Low/warn granularity:  1 mWh
Warn/full granularity: 1 mWh
Model number:          ThinkPad Battery
Serial number:
Type:                  LION
OEM info:              IBM Corporation
State:                 critical
Remaining capacity:    0%
Remaining time:        unknown
Present rate:          0 mW
Present voltage:       10032 mV