If you are using anything other than the cable that came with your iPhone or iPad, be sure that it is MFI Certified. If you are not sure, let me know when you would like to bring it by and I can test it and let you know in under 30 seconds, for free. Inside each lightning connector is a tiny authentication chip that tells your device it’s Apple MFI Certified. This is important because non-certified, or knock-off, lightning cables can be very dangerous to your device. These cables can often times get extremely hot, cause damage to your phone, and even render it completely fried and useless. I know roadtrip emergencies arise from time to time, but I would never plug a gas station or drugstore charger into my iPhone.