This is a good topic, how come nobody talks about thermal degradation and only SOC? Momentary extremes (hours maybe not days) for SOC is harmless compared to heat extremes even momentary ones. LG_Chem for pouch cells are rated to 60C operation, Energica allows 40C which is a pretty good de-rating. No expert here by any standard, particularly with NMC chemistry, but heat is the devil that causes the pouch swelling and the physical constraints of each cell's packaging causes the mechanical stresses that degrades the cell further. Energica rates their batteries for racing and the tolerance for heat is outstanding but as an owner if you temper your charging and discharging habits on >90F days and ride like you stole it on <50F days, one will be surprised at the longevity gained versus totally ignoring the thermals. SOC is easy to manage in comparison. The battery warranty suitably represents the potential for damage - the actual longevity is surprising, 1/4 million miles at 25C or something like that, when the topic was discussed w/ Energica - maybe they were pulling my leg just to sell me a bike...
