Heat is the worst enemy of your iPhone or Android phone’s battery – watch this simple experiment to see what you can do.
You’ve probably experienced this on your iPhone or Android device, especially during hot summer days. The device tells you the temperature is too hot to operate, and it might not let you use it (iPhone) or restrict some apps (Android). Both iPhones and Androids get hot when charging, especially when you’re using them while they’re plugged in. Add environmental heat, and your iPhone battery will take a hit. So will an Android’s.
You might have suspected that heat could impact your battery, but The Wall Street Journal’s Joanna Stern came up with an experiment that reveals just how bad heat is for your iPhone or Android device and what you should do to avoid killing your battery health.
What’s a safe temperature for iPhone and Android?
The test The Wall Street Journal ran is pretty simple. They put an iPhone 13 Pro and a Galaxy S23 Ultra under a heat lamp you might find in a kitchen.
They found that it takes about 7 minutes for the iPhone 13 Pro and Galaxy S23 to issue excessive heat warnings. They reached 137ºF (58ºC) and 128ºF (53ºC), respectively. The iPhone won’t let you use it, while the Samsung phone starts closing apps automatically.
