Fellow electric owners, I understand that a Torx T90 is the specific bit needed to replace the battery desiccant filter. However, these bits seem to be quite expensive ($30+); which seems outrageous for a single use application. So, I decided to offer up an alternative. I've designed a T90 bit with a knob base to make filter changes simple, and easy. This is a 3D model made in TinkerCad (try it! it's free!); and will be made available on Thingiverse once I finalize a few things. The prototype was able to remove a dealer-installed filter and re-install it (hand tight). Given the concern about the 14ft-lb torque spec, hand tightening seems to be the best way to avoid breaking the plastic threads. What are your thoughts? I am more than happy to make and ship one to any owner who would like one.