Bump killed my battery? I went over a bump at around 30mph today, it wasn't very violent but my bike turned off and I had to quickly pull over. I figured my battery had shaken loose, a cause to worry if it keeps happening but no huge deal. I took the battery off and smacked it back in.. nothin. I pushed the button on the battery and it didn't give me a charge level like it usually does so I figured the problem was bigger and started pedaling home on my own power. When I got home I threw it on the charger, it began charging and started giving me a charge level again when I pushed the button. I put it back on the bike and it turned on but gave me an error 30 (poor communication between controller and display). I put my old 48v on the bike and it turned on and works fine. What happened to my battery? I checked all my connections and inspected for corrosion for good measure, but I'm pretty sure whatever happened was inside my battery.. help is appreciated.