QUOTE(frostier @ Sep 2 2023, 01:19 PM)
first batch, oct 2021
now at 88%
without overnight charge, last longer it seems
QUOTE(eamhoys @ Sep 2 2023, 10:05 PM)
my iPhone 13 Pro Max bought in Oct 2021.
battery health now at 92%... always charge from when is around 35% all the up to 100%.. used both MagSafe and wired.
my other 11 Pro Max, bought in Oct 2019; is at 90%
same charging method as the 13 Pro max
QUOTE(GamersFamilia @ Sep 4 2023, 06:04 PM)
that's how to take care of the battery , me myself usually charge when is around 20-25% until full

Seems like overnight charge really kill it faster.
Mine from April 2022 at 86% health. Always charge overnight. Rarely used below 10 to 0%
I always read say the phone smart enough to stop charging when full.