Hi arthurlmiranda,
The tablet and the keyboard dock have individual batteries and their status can be checked by clicking on the battery icon on the task bar in desktop mode. Battery #1 is the tablet battery and Battery #2 is the dock battery. There is no option to disable tablet battery and use only dock battery. Dock battery gets active only after tablet battery depletes.
Check this table for more information.
| Conditions | Tablet | Dock |
|---|---|---|
| The tablet charges simultaneously along with dock. In case the tablet is drawing more power (for example: user is streaming full HD movie through Wi-Fi), its battery will take second priority to get charged. | The dock charges simultaneously along with tablet. In case there is not enough power available, dock's battery will take first priority to get charged. |
| The tablet uses its own battery and performs all functions. | The dock uses its own battery and performs all functions. |
| The tablet will draw power from the dock battery and perform all functions. | The dock uses its own battery and performs all functions |
| The tablet uses its own battery and performs all functions but does not supply power to the dock. | The dock will not function and there will be no indication to the user. The tablet can be undocked and used until the battery depletes. |