My Acer Aspire 4741G's status after 10 months of use. Battery's capacity dropped quite a bit. Learned to use 'acpi' from http://www.linuxondesktop.in/2011/03/ubuntu-tips-manage-cpu-tempreature.html

command_prompt

rednaxelafx@fx-laptop:~$ acpi -v
The program 'acpi' is currently not installed.  You can install it by typing:
sudo apt-get install acpi
rednaxelafx@fx-laptop:~$ sudo apt-get install acpi
[sudo] password for rednaxelafx: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  acpi
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 16.8kB of archives.
After this operation, 94.2kB of additional disk space will be used.
Get:1 http://cn.archive.ubuntu.com/ubuntu/ maverick/universe acpi amd64 1.5-2 [16.8kB]
Fetched 16.8kB in 0s (28.4kB/s)
Selecting previously deselected package acpi.
(Reading database ... 282629 files and directories currently installed.)
Unpacking acpi (from .../archives/acpi_1.5-2_amd64.deb) ...
Processing triggers for man-db ...
Setting up acpi (1.5-2) ...
rednaxelafx@fx-laptop:~$ acpi -v
acpi 1.5

Copyright (C) 2001 Grahame Bowland.
              2008 Michael Meskes.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
rednaxelafx@fx-laptop:~$ acpi -t
Thermal 0: ok, 38.0 degrees C
Thermal 1: ok, 51.0 degrees C
rednaxelafx@fx-laptop:~$ acpi -V
Battery 0: Unknown, 98%
Battery 0: design capacity 4400 mAh, last full capacity 4248 mAh = 96%
Adapter 0: on-line
Thermal 0: ok, 38.0 degrees C
Thermal 0: trip point 0 switches to mode critical at temperature 96.0 degrees C
Thermal 1: ok, 51.0 degrees C
Thermal 1: trip point 0 switches to mode critical at temperature 101.0 degrees C
Thermal 1: trip point 1 switches to mode passive at temperature 99.0 degrees C
Cooling 0: LCD 0 of 9
Cooling 1: Processor 0 of 3
Cooling 2: Processor 0 of 3
Cooling 3: Processor 0 of 3
Cooling 4: Processor 0 of 3
rednaxelafx@fx-laptop:~$