在 Linux 下檢視電池資訊

原來在 Linux 底下也能查看筆電電池的資訊，剛開始使用筆電果然還有很多需要學的。

$ cat /proc/acpi/battery/BAT0/info
present: yes
design capacity: 37440 mWh
last full capacity: 35960 mWh
battery technology: rechargeable
design voltage: 14400 mV
design capacity warning: 1798 mWh
design capacity low: 200 mWh
capacity granularity 1: 1 mWh
capacity granularity 2: 1 mWh
model number: 42T4630
serial number: XXXX
battery type: LION
OEM info: SANYO$ cat /proc/acpi/battery/BAT2/info
present: yes
design capacity: 28080 mWh
last full capacity: 27890 mWh
battery technology: rechargeable
design voltage: 14400 mV
design capacity warning: 1394 mWh
design capacity low: 200 mWh
capacity granularity 1: 1 mWh
capacity granularity 2: 1 mWh
model number: 40Y7903
serial number: XXXX
battery type: LION
OEM info: Panasonic

太好了！沒有邪惡的 SONY ！ 除此之外另外兩個檔案也包含了一些資訊：

$ cat /proc/acpi/battery/BAT2/state
present: yes
capacity state: ok
charging state: discharging
present rate: 11109 mW
remaining capacity: 21650 mWh
present voltage: 15780 mV$ cat /proc/acpi/battery/BAT2/alarm
alarm: 1394 mWh

目前唯一的問題就是我的底座擴充電池插上去時沒辦法馬上被偵測到並使用，必須重新開機才行，這實在太不像 Linux 的風格了呀！