Even with good USB-(A&C) cables and plugs (e.g., Anker, old vehicles, etc.). iPhones (13, 12 mini, and 11 Pro Max) weren’t hot. iOS v26.3’s battery didn’t say slow charge. They said ETAs were several minutes to 80% and then over a hour for 100% max, but we wanted to go to 100% ASAP before disconnecting and going out again.
Devices with lithium ion batteries should be designed to use trickle charging for the last 10-15% of battery capacity. This is a safety measure.
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I understand, but there are times we do want it to be 100% full before going out away from power sources (currently at 82% with almost 1.25 hrs. left to 100%). We used to have the option to fast charge to 100% too during daytime. At night when sleeping, the option is there. Why does it not exist during the daytime hours?