What Does Your iPhone Battery Usage Screen Actually Show?
iPhone's Battery Usage screen lists Background Activity, Notifications and more without explaining any of them. Here's what each label means and how to fix it.
Topic
iPhone
iPhone Cycle Count Explained: What's Actually Good
iPhone 15 and later are rated for 1,000 charge cycles to 80% capacity, not the 500 you may have read elsewhere. What a cycle is, and how to check yours.
iPhone Battery Health Below 100% Already? Why Your New Phone's Number Dropped (and When to Care)
A new iPhone dropping to 99% battery health is the single most posted-about battery worry on Reddit, and it is almost never a problem. iPhone 15, 16 and 17 are rated for 1,000 cycles to 80%, about one point per 50 cycles. Here is the math, the recalculation quirks, and the four cases that actually d
Is 87% Battery Health Good? What Your iPhone's Number Really Means (85%, 88%, 90%...)
87% battery health is good for any iPhone older than a year and typical at two years. Match your percentage against your phone's age in one lookup table, see what the missing points cost in real hours, and learn when a number is genuinely bad.