Why I Only Buy iPhones With 85% Battery Health (Okay, 84–83% Too😅)
Why 83–85% Battery Health Is My Rule for Buying Used iPhones If you’re buying a used iPhone in 2025, battery health matters more than people think. For me, the sweet spot is anything between 83% and 85%. That’s my personal cutoff—below that, things start getting sketchy. Phones under 80% might still “work,” but you’ll feel the slowdown,…