It depends on the battery capacity of your iPhone. For a new iPhone 8, it would take about 2 hours to charge to 50% and 3 hours to charge to 100%.

There are a few things that could be causing your iPhone to take a long time to charge and turn on. One possibility is that the battery is drained. If the battery is completely drained, it will take longer to charge. Another possibility is that there is something wrong with your charging cable or adapter. If you’re using a third-party charger or adapter, try using the Apple-supplied charger and adapter to see if that fixes the issue.

The iPhone has a battery and it needs to have some charge in order to turn on.

If an iPhone is dead, you will see a red light on the bottom of the phone when you plug it in to charge.

An iPhone can be turned off for up to 30 days. After 30 days, the phone will go into a deep sleep mode and must be charged in order to turn it back on.

It’s generally recommended to charge your iPhone at 100 percent. That said, there’s no real harm in charging it at a lower percentage, and some people find that it helps their battery last longer if they don’t charge it all the way up.

The proper way to charge an iPhone is to use the included charger and plug it into an outlet.

It’s not bad to use your iPhone while it’s charging, but it’s not recommended. Charging your iPhone using a power adapter and USB cable plugged into a computer is the best way to charge it.

There is no clear consensus on whether or not shutting down your iPhone will actually make it charge faster. Some people believe that it does, because the phone will use less power when it’s off than when it’s on and performing tasks like checking email or browsing the internet. Others say that there is no difference, and that the only way to make your iPhone charge faster is to use a charger that is compatible with Apple products.

There are a few things you can try if your iPhone won’t charge. First, make sure the charging cable is plugged in correctly and that the power outlet is working. If that doesn’t work, try restarting your phone by holding down the power button until the slider appears. If that still doesn’t work, you may need to take your phone to a technician.