I bought a Shorai Li about 2 years ago and its fine. I didnt notice any difference in the winter as well. But if you buy one the Shorai charger is a must. There have been many times already where I had the bike apart for 1-2months + and I left it on the trickle charge. And you will need it if the battery ever goes below the nominal recommended voltage 12.5v or under. The charger is a must to keep the battery health in good condition. Then the batt should last 5+ years. Also if it goes bad shorai has a decent warranty. I noticed an immediate difference in turn in speed after I made the switch to the LI batt. That stock acid batt is fkin heavy. And removing all that weight off the tail really made the Hyper turn like it should be. Switching the stock steel bars to almin and taking out those heavy hand guard adapters inside the bars also made turning wonderfully light.
Also, switching out the Taigene starter motor to a Denso one made the most difference with starting. No more chugging 3,4,5 times before starting. It starts even before you can hear 1 turn over. Gives you a lot more confidence now that the bike will start up every time.
Lastly, I took a ride with some Ducati Japan members and they took me for an interesting lunch. Raw horse meat donburi.#basashi #Sakura Niku.