Getting stuck with a completely discharged phone is not ideal. There are plenty of power banks and emergency chargers that can keep your phone going longer. When nothing else works, you can simply use regular or rechargeable batteries to charge your phone. We have already covered how it can be done with AA batteries. In this video, you can see how it is possible to charge an iPhone with a Tokeyla 18650 rechargeable battery.
This charger has a magnetic design and Lightning connector. Simply bring a 18650 battery, and you are ready to go. The charger is compact enough to easily fit in your pocket.[HT]