“And with its new battery technology, regularly charging to 100% capacity is recommended to achieve the fastest overall charging speeds”. Now wait a minute, full charging is not recommended on my Ultium Equinox EV, with the exception being if you need the extra range for a trip, or for any EV as we’ve all been told cycles are the biggest contributor to battery degradation. Are LFP batteries not susceptible to battery degradation from cycle 100% routine charging.
While LFP batteries do show some degradation, it does not appear that the difference in degradation between regularly charging to 100% versus keeping them below 70% will be that noticeable (based on 2021-2024 Tesla Model 3 with CATL LFP batteries). LFP batteries also have relatively flat voltage curves between ~15% and 99%, so an LFP battery's BMS may lose the true state of charge if the battery is only cycled within that range for a while. Hence the recommendation to charge LFP batteries to 100% frequently, although if you are concerned about added degradation, do so just before you actually need to use enough to bring it down to <70% soon.
NMC batteries as used by most non-Tesla EV makers (Tesla uses mostly NCA in the US) supposedly degrade less when kept below 60%, although LG NMC batteries do not seem to be particularly high degradation. The Panasonic NCA batteries in Teslas in the US have a reputation of higher degradation except for those who carefully keep them below 55% except when needed for road trips. However, it should be noted that degradation is more obviously visible on Teslas, since their primary range display is
rated remaining range, not a guess-o-meter that adjusts for recent driving efficiency.
For any EV battery, long term parking or storage is best done plugged in with the charge limit set to as low as allowed, to avoid increased degradation at high state of charge but also avoid vampire drain that could pull the battery down to 0%.
LFP batteries are also harder to catch fire if damaged, and much easier for fire departments to put out if they do catch fire.