Why does my phone shut off at 30 percent?

Something Abnormal Is Draining Your Battery Too Quickly Not only can certain factors affect the accuracy of your battery percentage, but they can also impact the battery itself. If your phone becomes too cold, the reactions can slow down, causing your battery to shut off suddenly even when it still has 30 or 40\% juice.

Why did my phone turn off out of nowhere?

Sometimes an app can cause software instability, which will make the phone power itself off. Uninstall any task manager or battery saver apps. Check if the phone only powers itself off when using a specific app or when performing a certain task. Make sure all of your apps are up to date in the Play Store app.

Why does my iPhone shut off at 30 percent?

Your iPhone’s software is in charge of monitoring the amount of battery life remaining on your iPhone. If the software or firmware isn’t communicating properly with the battery, it’s not going to display the right percentage.

Why does my phone turn off at 40\% battery?

If you’ve got a battery with a high internal resistance and a power-hungry load like the camera demanding a lot of current, other devices like the processor will see their supply voltage drop, and if it drops low enough, the phone will shut off. That’s what’s going on when a phone turns off with 40\% battery left.

Why does iPhone shut down suddenly?

An iPhone that keeps turning off can be caused by faulty apps, water damage, or (usually) battery issues. Sometimes, a hard reset will fix an iPhone that keeps turning off, or power cycling, on its own. If all else fails, you may need to contact Apple Support for a battery replacement to stop the issue from recurring.

Why does iPhone turn off by itself?

Why does my iPhone suddenly blackout?

A black screen is usually caused by a hardware problem with your iPhone, so there usually isn’t a quick fix. That being said, a software crash can cause your iPhone display to freeze and turn black, so let’s try a hard reset to see if that’s what’s going on.