What Causes an iPhone to Keep Shutting Down
There are a number of things that could cause this problem, including faulty apps and water damage, but, in the vast majority of the cases, the problem is the battery. There are a few ways to tell for sure that the battery is the problem: the Battery Health feature built into the iOS, if your iPhone shuts down at 30% battery, and a tool provided by Apple.
How to Fix an iPhone That Keeps Shutting Down
Before you go down the battery-replacement route, there are some easy software steps you can take to try to fix an iPhone that keeps shutting off.
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To view your phone’s Battery Health, tap Settings > Battery > Battery Health. If your Maximum Capacity is very low, that may be a sign of a problem with the battery. If you see anything other than “Peak Performance Capability,” that may be a sign your battery has issues. Apple is your best bet for getting help, so contact Apple Support.
