Common eBike problems and solutions

Hey everyone!

Just wanted to kick off a discussion about common eBike issues we've all probably faced. My commuter eBike (a hardtail mountain bike conversion) has been great for my 15-mile round trip on paved paths, but lately, I've had some intermittent motor cutout issues on bigger hills, which is a bit frustrating. What are some of the most frequent problems you've encountered with your eBikes, and more importantly, what clever solutions or preventative maintenance tips have you found to keep them running smoothly? Looking forward to hearing your insights!