“Technically, if you want the most longevity out of your pack, you shouldn’t charge to 100% but stop at 80%-85%. That’s where the battery wants to be. After that, you’re putting strain on the pack.
So I was reading about the Kona and I’m not sure if other cars do this but, basically the Kona technically has a 67.5kwh battery but only makes use of 64kw to basically protect the battery pack. It equates to 94.8% of the available size but from what I’m reading should provide some extra longevity to the overall pack.
That’s indeed correct, all EVs reserve “x amount” of battery for protection.
Usually it’s on the bottom end though, so you don’t “overdischarge” the battery which irreparably damages it. Basically, you discharge from 100% to 5%, rather than 0%, leaving a little bit of buffer against draining the cells below 3.2V.
Prior: SEAT Ateca Xcellence Lux 1.5 TSI DSG MY19, VW Golf GTE PHEV DSG MY23
Current: Hyundai Ioniq 6 Ultimate
Next: we'll see what's available in 2028.