How to Enable/Disable Battery care function on Sony Vaio to improve Battery life.

Sony Vaio Battery care function increases your battery life time and battery back up in the long run by limiting the max capacity of the battery to 80% or 50%. This means the battery would only be charged to 80% in each charge-discharge cycle. The backup would be lower in the beginning, but in the long run average battery backup would be more. Thus the battery capacity is not utilized fully.

Battery life will be about 80% of the one of the fully charged battery, however, this mode prevents battery degradation and is more effective if you usually use the computer with battery power.
[Note] When you use the AC adapter to power the computer and the battery power is higher than the desired value, it takes time to reach the specified amount of battery charge. It is recommended to discharge the battery to less than 80% by using the computer with battery power.

In order to enable Sony Vaio Battery care function,

• Take Vaio Control Center (from Control panel or by typing Vaio Control Center in the start menu).
• On left side click Power management and then click on the Battery sub item
• Click on enable Battery care function as shown below.
  
  
  
  
  Uncheck it to disable battery care function.
  
  
• Click on advanced and choose 80%
  

If your computer is charged to 100%, unplug from the power source, and let the battery go below 80%.

Now you should see lesser battery degradation.

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