Can you charge an iPhone with watermelon and salt?

I've just watched a vine video and seen it but is it true? Can this work?

We actually tested this at my university and it does work. It's quite complicated how, but it's to do with the charge that the salt crystals carry

I SAW THAT TOO! But sadly no it doesn't work, the guy in the video had his phone in a chargeable case )

No, but if you put it n the microwave on high for 2 seconds (no more) it will mostly recharge the battery.