Oregon scientific sensor external power lid

My Oregon's external sensor are a bit olders and they need to replace the battery oftenwith a certain lack of commodities, every time I must reset the base station and is a bit uncozy.
So: I designed a rear lid that include the contact for the power supply. I've tested an 18650 and it work fine.
Let me know what you think about.
I've included an simply hook for better positioning the sensor.

nb petg is better choice for this