有不同的方法：首先，您可以安装acpi
包 并像这样运行它：
acpi -b
它将显示电池的当前容量以及是否正在充电、放电以及充电时将持续/充电需要多长时间。
如果您不想安装新软件包，还可以查询 proc 文件系统：cat /proc/acpi/battery/BAT0/state，它将为您提供以下输出：
present: yes
capacity state: ok
charging state: charged
present rate: 1 mA
remaining capacity: 7800 mAh
present voltage: 12062 mV
有关电池的更多详细信息，请检查cat /proc/acpi/battery/BAT0/info
present: yes
design capacity: 7800 mAh
last full capacity: 2898 mAh
battery technology: rechargeable
design voltage: 11100 mV
design capacity warning: 780 mAh
design capacity low: 236 mAh
cycle count: 0
capacity granularity 1: 78 mAh
capacity granularity 2: 78 mAh
model number: DELL WK3798
serial number: 1226
battery type: LION
OEM info: Sanyo