Why Does My iPhone 7 Plus Restart on Its Own at Times and Sometimes Switches Off Even When There is Enough Battery?
Have you ever experienced an iPhone 7 Plus restarting or shutting off unexpectedly when the battery level is still high? This can be particularly frustrating, especially when you are in the middle of an important activity. The potential causes can range from poor battery health to system service crashes, and iOS updates. Let's explore these possibilities in detail and how you can address each issue.
Poor Battery Health as the Culprit
If your iPhone 7 Plus frequently shuts down for no apparent reason when the battery level is high, it may be due to poor battery health. Unlike other devices, iOS does not provide battery diagnostics, so you need to check the battery health manually. You can access this information by navigating to Settings Battery Battery Health.
If the battery health is less than 90%, you may need to replace the battery. Other factors that can cause unexpected shutdowns include chemical aging, low battery status, or extreme temperatures. It is recommended to check the battery health regularly and replace it if necessary.
Signal Mishandling and Old Batteries
Another possible issue is that the phone might signal 100% charge but only maintain that for a short while. This problem often arises from an old and tired battery. Checking the age of the battery, the health, and the cycle count can provide valuable insights. If the battery is old or the cycle count is high, it might be time to replace it.
System Service Crashes and iOS Updates
The most probable cause of this is an old or faulty battery or, very rarely, water damage. If your battery health is below 80%, you should consider getting it changed or a new phone, especially if you haven't gotten a battery change before.
If the issue only occurs when the phone is very hot or cold, keeping it in a temperate location can help. However, if you suspect a bad battery, it's best to replace it. Certain models of iPhones, including the iPhone 7, are eligible for a special battery deal from Apple until the end of 2018.
Proactive Support from Apple
It's worth noting that you can ask for help from Apple's tech support staff. They are glad to assist you, and it costs you nothing. You can correspond with them by telephone or text. If you reach out to them, they might be able to provide a quicker solution than dealing with the issue yourself.
Common Issues and Solutions
A friend of mine faced a similar issue with his iPad. His battery would turn off with around 50-80% charge left, and turning it on again required a charger. Replacing the defective battery resolved the issue. While turning off with 10% remaining can sometimes be normal, it's not always accurate. Apple's Lithium-ion percentage readings can be inconsistent, and some devices might turn off between 5-6%. If replacing the battery doesn't help, consult the repair store for probable causes.
In conclusion, poor battery health, system service crashes, and iOS updates are the most common reasons for your iPhone 7 Plus restarting or shutting off unexpectedly. Regular checks and timely battery replacement can prevent these issues. If you're unsure about the diagnosis, seek professional help from Apple or a certified repair service.