Leaderboard

Yes, it's important by itself, but there's a strong interaction with charge level at storage temperatures that aren't very hot. https://batteryuniversity.com/article/bu-808-how-to-prolong-lithium-based-batteries "Lithium-ion suffers from stress when exposed to heat, so does keeping a cell at a high charge voltage. A battery dwelling above 30°C (86°F) is considered elevated temperature and for most Li-ion a voltage above 4.10V/cell is deemed as high voltage. Exposing the battery to high temperature and dwelling in a full state-of-charge for an extended time can be more stressful than cycling." Figure 8 demonstrates my understanding of the opportunity to undercharge for extended longevity. https://batteryuniversity.com/img/content/capacity-retention3.jpg That said, Ford knows all this stuff, too. I assume it's comprehended in their charging protocols. All you'd be doing is "leaning in the right direction" akin to some of your aerodynamic modifications.