I've been reading as much as possible about Li batteries concerning their cold weather performance from the manufacturers who say no problems to anecdotal accounts from owners to myth busting videos on Youtube. Owners will say that they need to warm up via a load such as leaving the ignition on with lights before starting. Others say they will warm up after repeated cranking and a fast return to full charge vs depleting a lead acid battery if the bike doesn't fire right up. I'm not sold on these batteries for colder riding. The Chevy Volt's mileage range is quite a bit lower in colder weather. Li batteries have many advantages over lead acid, but I don't think cold weather operation is one of them. I'm sure someone will say I'm wrong.
You may laugh, but an old school wet cell battery where you have to keep an eye on the electrolyte level and possibly have battery acid leaking where it shouldn't is still a very good battery for a motorcycle, even in cold conditions.