Installasi Linux power managemen di Lenovo ThinkPad

$ sudo apt-get install tlp tlp-rdw 
$ sudo apt-get install tp-smapi-dkms acpi-call-dkms 

hasilnya :

$ sudo tlp-stat -b
--- TLP 0.9 --------------------------------------------

+++ ThinkPad Extended Battery Functions
tp-smapi   = active
tpacpi-bat = active

+++ ThinkPad Battery Status: BAT0 (Main / Internal)
/sys/devices/platform/smapi/BAT0/manufacturer               = SANYO
/sys/devices/platform/smapi/BAT0/model                      = 42T4848
/sys/devices/platform/smapi/BAT0/manufacture_date           = 2015-12-01
/sys/devices/platform/smapi/BAT0/first_use_date             = 2013-05-11
/sys/devices/platform/smapi/BAT0/cycle_count                =      6
/sys/devices/platform/smapi/BAT0/design_capacity            =  47520 [mWh]
/sys/devices/platform/smapi/BAT0/last_full_capacity         =  46800 [mWh]
/sys/devices/platform/smapi/BAT0/remaining_capacity         =  22960 [mWh]
/sys/devices/platform/smapi/BAT0/remaining_percent          =     49 [%]
/sys/devices/platform/smapi/BAT0/remaining_running_time_now = not_discharging [min]
/sys/devices/platform/smapi/BAT0/remaining_charging_time    =    136 [min]
/sys/devices/platform/smapi/BAT0/power_now                  =  30481 [mW]
/sys/devices/platform/smapi/BAT0/power_avg                  =  30504 [mW]
/sys/devices/platform/smapi/BAT0/state                      = charging

tpacpi-bat.BAT0.startThreshold                              =     96 [%]
tpacpi-bat.BAT0.stopThreshold                               =    100 [%]
tpacpi-bat.BAT0.forceDischarge                              =      0

Charge                                                      =   49.1 [%]
Capacity                                                    =   98.5 [%] 

--------------------

melihat konfigurasi:

cat /etc/default/tlp |grep BAT0



edit :
vi /etc/default/tlp

ganti dengan :

START_CHARGE_THRESH_BAT0=35
STOP_CHARGE_THRESH_BAT0=90