Join Date: Aug 2011
Location: Western Canada
Bikes: E+ kit, Tidal Force, BIONX
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I've got plenty of experiece riding in winter.
Cenral Canada winters can be very severe.
First,I don't ride on colder mornings than -15C /with no windchill factor/.
I cannot even imagine Lead Acid battery at such cold. Almost usless.
In winter I use Tidal Force with LiFePo 10Ah pack and what I see at -15C is bigger Ah use by max. 10%, bigger voltage sag, however TF is not even a bit slower at such weather due to unique USA-desiged electronics.