Reconditioning your battery can increase the full charge capacity of your battery. 
It is recommended that you let the battery run to less than 3% at least once a month. 

Occasionally, it may be necessary to "deep cycle" your battery one to three times
to give it optimum performance. This will require you to let your battery run completely
down, and then to recharge it fully. It is recommended that you charge your notebook
overnight for a full charge from a deep recharge condition without leaving it powered on.
A brand new battery should be fully charged overnight before its first use.

Perform the following steps: 

1. Make sure you have saved all of your data, and close all programs. 

2. Disable Power Management timer settings so that your notebook keeps working during
   reconditioning the battery. You need Administrator or Power User privileges on
   Windows 2000 or later. 


a. Record your current power management settings. After reconditioning your battery,
   you might want to restore these settings to your previous settings. 


b. Disable Shut-off Timers. 


3. Disable Hibernation and Standby before a battery is fully discharged. Note that you
   need Administrator or Power User privileges on Windows 2000 or later. 


4. Let the battery totally discharge, then let the battery charge. 

   Perform the following steps: 

   a. Unplug the AC adapter and let the battery totally discharge. 
   Note :  
   Li-Ion batteries need to be charged to 100% at the start of the battery reconditioning
   process. 

   b. With the proper AC adapter, let charge the battery until Battery LED is solid green. 

