Use a wireless charging pad if your iPhone supports wireless charging
Charge from a computer USB port using a Lightning cable
Use a portable power bank with a Lightning cable
Use a car USB charger with a Lightning cable
Use a USB wall adapter from another compatible device
Use a charging case or battery case made for iPhone
Use a MagSafe charger if your iPhone supports MagSafe
Use a multi-device charging station with the correct cable
Use a solar power bank with a Lightning cable
Use a hand-crank or emergency power bank with the correct output