The battery charge has decreased after I resume my computer back from hibernation mode or shutdown

The battery charge has decreased after  I resume my computer back from hibernation mode or shutdown.

The battery charge will decrease in the following conditions:
Case 1) When computer with AC adapter unplugged goes into hibernation mode and resume back from it
Case 2) When computer with AC adapter disconnected shuts down and turned on after a while.

The battery charge has been consumed for the following reasons when PC is turned off or in the hibernation mode. In theses scenarios, you may experience decrease  of battery charge.

- To support the Functions which will continue to work even the after the computer is turned off (ex. clock function)
- To secure the Safety circuit in battery
- To support the unique circuit for each models

Note:
The degree of power consumption can differ from one unit to another.