The battery indicator& Power setting panel shows wrong battery state

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http://askubuntu.com – My laptop is Thinkpad E420 with Ubuntu 12.04 64-bit installed, the kernel version is 3.2.0-33-generic. I have set the battery threshold as 60% via windows7. It seems that the threshold auto effected in Ubuntu. However, there are some problems of the battery indicator's state. I'll list some information of the battery state as following: $ cat /proc/acpi/battery/BAT0/state present: yes capacity state: ok *charging state: charged* present rate: 0 mW remaining capacity: 18200 mWh present voltage: 16103 mV battery indicator state (HowTos)