在FreeBSD中，如何查看笔记本电池的状态信息？

解决方法

可以使用acpiconf命令。 -i选项可以查看有关电池的详细信息。

语法为：

acpiconf -i NUMBER-HERE

查看笔记本电池信息：

$ acpiconf -i 0

输出示例

Design capacity:	8400 mAh
Last full capacity:	5695 mAh
Technology:		secondary (rechargeable)
Design voltage:		11100 mV
Capacity (warn):	840 mAh
Capacity (low):		254 mAh
Low/warn granularity:	84 mAh
Warn/full granularity:	84 mAh
Model number:		DELL 3M19002
Serial number:		2874
Type:			LION
OEM info:		Samsung SDI
State:			high 
Remaining capacity:	15%
Remaining time:		unknown
Present rate:		1 mA (11 mW)
Present voltage:	11248 mV

或者

# sysctl -a | grep -i battery