Battery level on W10

Hi,

I recently own a white xbox one controller to use with my computer ( runing on W10 ).

Everything is working fine, my controller is wireless and is connected to my computer thanks to the additionnal bluetooth plug.

I decided to buy a " Play & charge kit " in order to charge the same battery and not buy new ones every time.

My question is, where can I see the % of battery on W10 ?

:)