When your day or activity was so good that you didn't even look at your phone.
Describing duration of time in which you were enjoying yourself so much it was as if your phone was at home on the charger.
I was wathcing a crappy movie so i said my cell was dead and went to the car to plug it in. I waited a few miunets and my GF comes out and we have some fun foging up my windows.
"I've been feeling sick lately. I hope I don't charge your phone tonight."
"Would you like me to charge your phone?"
"Do you like it when I charge your phone?"