Common eBike problems and solutions

Hey everyone!

Just got back from a great 30-mile ride on my hardtail eMTB – mostly urban with some gravel paths. It got me thinking about common eBike hiccups we all face. What are some of the most frequent issues you've encountered with your eBikes, and more importantly, what clever solutions have you found? I'm curious about everything from battery quirks to motor noises or even just annoying creaks. Let's share some wisdom!