First full day on the 12 pro max. Does anyone fully cycle their battery with a new phone? (such as using it from 100% and not charging till it either dies or is at like 1%. Is that a thing still? or no?
I don’t think it’s a thing. Letting lithium ion batteries die while in use isn’t recommended, technically.
I think the battery management systems do their own calibration.
But, Apple only recently implemented battery optimization a year or two ago—many people had previously said, “Well, if Apple’s default is to charge to 100% at all times, then it’s probably the right choice for the battery.” Against all reason and logic of how lithium ion batteries work (it’s not recommended nor healthy for a lithium ion battery to sit at 100% for hours on end).
But, it’s like eating junk food. Doing it some of time isn’t an issue. Doing it often is what causes the damage.