Apple releases iOS 11.3 so you can check how bad your iPhone battery is
Apple just released iOS 11.3, which adds the new "battery health" feature that allows you to check whether your iPhone's battery has degraded. It also lets you see if Apple is throttling your device due to a bad battery.
The update is available now in Settings —> General —> Software Update.
Once you've installed it, you can find the new battery features in the "battery" menu in your settings.
|Apple releases iOS 11.3 so you can check how bad your iPhone battery is
You can download iOS 11.3 now.