Stop charging your iPhone to full battery or it could be permanently damaged, warns Apple

dailystar.co.uk:

iPhone battery when you're out and about can be incredibly frustrating, which is why so many people like to plug their phone in overnight and wake up to a fully-charged battery.However, charging your iPhone to 100% of its battery capacity on a regular basis could actually be damaging your phone's overall battery life, meaning each charge is going to last for a shorter and shorter period of time.

iPhones use lithium-ion batteries which lose a little bit of power every time they're fully recharged. So, if you charge it up to 100% hundreds of times, you may have to replace the battery or even the phone to keep using it.READ NEXT: iPhone workers 'ate rotten food in rat-filled rooms' and worked overtime for £4 a dayTo find out if charging has damaged your iPhone's battery, you can head to the device's Battery Health feature on the Settings app.

If the iPhone's charge capacity has reduced as a result of fully charging it, there are a few things you can do to mitigate this besides unplugging your iPhone when it reaches 80%. 'Optimized Battery Charging' is a feature which activates a 'trickle charge' mode, reducing the amount of power flowing into the battery after it reaches 80% charge.

This feature is activated by default in devices that use iOS 13 and later, but to double-check, open your Settings app and head to Battery > Battery Health.