Common eBike problems and solutions

Hey everyone! Just joined this forum and super excited to connect with other eBike riders.

I've been riding my Aventon Pace 500.2 for about a year now, mostly for commuting ~15 miles round trip daily, plus some weekend trail rides. So far, it's been pretty smooth, but I'm curious what common issues you all have encountered with your eBikes, regardless of brand or type? Things like battery degradation, motor quirks, or even just annoying creaks – and more importantly, what solutions did you find? Looking forward to hearing your experiences!