The trick is when you overdress and need to remove layers, where do you put them? One needs a lot of onboard storage to store more than one removed garment...
Being cold causes the voltage to drop, which does result in less available power, and below a certain temperature, batteries won't charge effectively. (Lead-acid are the best in low temperatures) Note the comment below the table below.
Source: https://batteryuniversity.com/article/bu-410-charging-at-high-and-low-temperatures
View attachment 11687
I guess this is why Lead-acid batteries are still used in cars in cold climates instead of Lithium.
I just looked up studded tires for my hybrid bike; (700c x 45) they are quite spendy! I would have to do a lot of snow/ice riding to justify them, and I certainly couldn't justify them for more than one bike:
https://www.biketiresdirect.com/product/45nrth-gravdal-studded-bike-tire?fltr=3755+3781&sg=500
Going to look up studded tires for my incoming Juiced HyperScrambler 2 eBike and see if more are available, as this is probably a more popular size for eBike tires.