Hello
Under Power management → Advanced power settings, it is possible to limit the battery charge, if the laptop supports this. This feature is handy to slow down the aging of the battery by keeping it at a lower charge level.
However, if full battery runtime is required, it should be possible to get a full charge without digging through menus, without entering the admin password, and without completely disabling it. To achieve this, a new button in the “Power and Battery” panel of the system tray to get a 100% charge once/temporarily would be perfect.