Saw this article. Has a Radwagon in the picture and talks about using it in winter months. I thought it was good.
Treehugger Voices
Yes, You Can Ride an E-Bike All Winter Long
https://www.treehugger.com/you-can-ride-e-bike-all-winter-5095699
Treehugger Voices
Yes, You Can Ride an E-Bike All Winter Long
https://www.treehugger.com/you-can-ride-e-bike-all-winter-5095699