cross current s

Hi all, I've been researching and test riding bikes to use for a 15 mi. flat commute and weekend excursions. I'm 6'2" 225 lbs. so prefer large frame and 27.5" or 28" tires + have bad knees. Bigger battery is better for longer range. Looking for upright riding position, throttle, cadence sensing...

I just put together my new Cross Current S. I did a 5' test ride and all seemed okay. I took the bike for my first commute and after going down a 1 mile hill, my power shut off and my display read error 11. Does anyone know what this error message means and how I might fix it? I really hope it...