iPhone 17 Pro Max keeps 100% battery health by avoiding car charging

3 articles · Updated · ZDNet · May 3

The handset stayed at 100% after 196 recharge cycles and 216 days, while Apple says newer iPhone batteries should retain 80% capacity after 1,000 full cycles.
The contributor says car charging repeatedly overheated the phone, sometimes triggering Apple's "Charging on Hold" mode, unlike charging by power bank or on a nightstand.
Apple warns temperatures above 35C can permanently reduce battery capacity, and the writer says occasional in-car charging now involves shade, air-conditioning and thermoelectric-cooled chargers.

Is your daily car commute silently destroying your expensive phone's battery?

Why are built-in car chargers often the worst way to power up your smartphone?