Avec un ordinateur portable comment augmenter l'uptime sur batterie ?

cat /proc/acpi/battery/BAT0/state

cat /proc/acpi/battery/BAT0/state
present:                 yes
capacity state:          ok
charging state:          discharging
present rate:            1492 mA
remaining capacity:      540 mAh
present voltage:         14327 mV

Baisser la luminosité

Puis :

cat /proc/acpi/battery/BAT0/state

present:                 yes
capacity state:          ok
charging state:          discharging
present rate:            1302 mA
remaining capacity:      498 mAh
present voltage:         14319 mV

Et !

cat /proc/acpi/battery/BAT0/statepresent:

capacity state:          ok
charging state:          discharging
present rate:            1160 mA
remaining capacity:      486 mAh
present voltage:         14369 mV