I am not seeing any notifications when power is down on my laptop, I
have configured group policies and perhaps these are not set right.

The machine goes into hibernation when totally exhausted all batteries.
This happens as planned via the group policy settings.

I am confused about my first point. I have set the Notification
settings as follows:

Crtical Battery Notification Action Hibernate
Low Battery Notification Action Take no action
Critical Battery Notification Level 5
Turn Off Low Battery User Notification Disabled
Low Battery Notification Level 10

Am I reading the following policy wrong and this should be enabled ?

Turn Off Low Battery User Notification Disabled

Any advice would be appreciated.