Common eBike problems and solutions

Hey everyone!

Just picked up a new folding eBike (a RadExpand 5, if anyone's curious!) and I'm loving the portability for my city commutes and weekend adventures. I'm wondering what common issues or quirks you've encountered with your folding eBikes, especially after a few hundred miles or on rougher terrain? Any clever solutions or maintenance tips for things like creaking hinges, battery connector issues, or cable management when folding? Would love to hear your experiences!