Universal, maybe not, but I can cannibalize together old parts to make almost anything work. It shouldn't break your phone.

[ it won't break her phone, but tony doesn't like promising absolutes. and once tessa has handed over her phone, he plugs it in without much fanfare. it takes a moment, but soon the little battery symbol shows up on the screen to show that the phone needs to charge for a few more moments before booting up completely. ]

Voila.

[ great success! and he sets the phone on top of the generator tentatively, knowing that even though it's just a phone, it's obviously important when you're lost here without much other connection... and he leans against the back wall, crossing his arms over his chest. ]

I'm an engineer. And I make a lot of things, generators included. My biggest interest is eco-friendly powersourcing, but that's not really sexy, so my PR team calls it "power for the people" or something like that.

[ he pauses. ]

But I like to build things, and I'm good at it, so I figured I may as well spend my time imprisoned here doing something vaguely useful.