If your iPhone has a low battery warning, you can disable it to avoid being alerted when the battery is low. To disable the low battery warning, open the Settings app and select the Battery section. Under Battery Usage, you’ll find a list of options for disabling the low battery warning. Choose one of these options and press OK to disable the warning:

  1. Disable Low Battery Warning on All Devices: This option disables the low battery warning on all devices.
  2. Disable Low Battery Warning on My Device: This option disables the low battery warning on a specific device. For example, if you have an iPhone 6S and want to disable it on your 6S Plus, you would choose this option.
  3. Disable Low Battery Warning Only if I’m Using an iPhone with iOS 11 or Later: This option disables the low battery warning only if I’m using an iPhone with iOS 11 or later.