Becoming annoyed with quotes of range, then followed by quotes of time to recharge to 90%.
What’s the time to recharge to 100%? When I fill my gas tank, I don’t fill it 90%. Regulators in the US should insist that range quotes be the 90% range, since that is the level that apparently is recommended for recharge.
80-90% for two reasons. That last 10-20% takes almost as long as the first 80%. It’s not like filling a gas tank. The electrons looking for electrodes inside the battery cell was described as a mall parking lot. When you drive in at 8am on a random Tuesday you can quickly find a parking spot in seconds. When you go at 11 am on Saturday before Christmas you’re going to be driving around a lot to find a space. So it’s much slower to get that last 10%-20% of electrons parked in an electrode as they travel throughout the circuit looking for a free electrode to park in all while other electrons are also looking for spots. Something like that anyway.
When you charge it over 80-90% the battery is at a high voltage state, and in that state it degrades the chemicals inside the battery. Why, I dunno. You can charge to 100% but it simply reduces battery life as it degrades. That is why they don’t want you to charge to 100%. If you buy one of these things you want it to go for 300,000 miles plus. If you charge it to 100% all the time it won’t last - it’s a disposable car. And yes I know some ICE cars well maintained last longer, most them either do not or are not well maintained to do so (and these days with so many electronic components and cheap aluminum engine parts ICE engines may be unlikely to last that long anymore, sadly). My current car is 26 years old with 230,000 miles and running strong.
Yeah I know it seems illogical on the surface. But anyway that was explained to me years ago by the tenured professor of battery engineering (?) boyfriend of my wife’s oldest friend. I may have gotten it a little bit wrong but I think I’m about 80% right. Good enough for cruising FR threads.