I recently opened my sealed enclosure to pair a new remote–old one got left in Uber-- and was super happy that after 1200km everything looks great. The NESE modules and the shock absorbing base have all survived.
I would have put more km on this system had I not made a second board(~400km on that one). That also has NESE, but custom boxes and without enclosure(I don’t ride it in rain). That seems to be going strong too.
If you have a 3D printer and can print in PETG or ABS, NESE is the way to go. My next project will use 21700 tabs.
@DAddYE, did you ever get around to making NESE battery pack?