A battery test shows iPhone 17 gains are real but modest, with eSIM-only models likely lasting longer thanks to larger batteries.

Here’s iOS 26.3 and iOS 18.7.5 battery life drain being tested to show how they perform on different iPhone models.

A battery test shows iPhone 17 gains are real but modest, with eSIM-only models likely lasting longer thanks to larger batteries.

The American iPhone 17 Pro Max delivered the highest performance, partly due to a larger 5,088 milliampere-hour battery.

How to use Windows 11's hidden battery health tool to diagnose your PC (before it's too late) ...

Most handheld devices use alkaline or rechargeable batteries, and measuring the battery capacity is a crucial feature of such designs. Most of the time, however, using a battery level monitoring IC ...