Everybody is aching to charge their phones as quickly as possible, suddenly rushing through life, finding themselves with a 5% battery, and the best thing would be to just charging it up in seconds. I usually charge my phone at night, since one full charge is enough for a whole day (usually i’m at 10-20% when i go to bed) But the issue: they say you shouldn’t leave your phone on the charger for a longer time when it’s already 100% charged, and quick charging is not very good for the battery health. Since I usually sleep 7-8 hours why isn’t there a slow charging mode, that takes that long for a full load and is much healthier for the battery? cheers
Apple didn’t fix the overcharging issue on iPad until iOS 11.3. It’s not a priority for them. Most iPhone users are more concerned about short term battery life and day to day usage. Ideally, Apple would implement an 80/20 charging rule to improve battery longevity. But then you would hear the media talk about how “true” battery life is only 80% of rated capacity.
Whomever "they" is, "they" don't know what "they" are talking about. "They" are not Apple. Newton's Apple is correct. Apple says, "Charge your Apple lithium-ion battery whenever you want." https://www.apple.com/batteries
“They” includes Tesla. Apple doesn’t manufacture their own batteries and with a one year warranty for iPhone, Apple couldn’t care less about battery longevity.