Don't worry if your Fitbit Luxe is not charging. You should try the methods below:
# Use original charging cable
# If you have not use it for several months then plug it on charger and check after 2 hours.
# Change power source
# Connect charging contacts and pins correctly
# Remove protective strip from charging pot
# And I have put the more details in this [link|https://mywatchgeek.com/fitbit-luxe-not-charging/|My Fitbit Luxe Not Charging|new_window=true]