Wiktionary
juice up
vb. (context idiomatic informal English) to charge, to charge up
WordNet
Usage examples of "juice up".
Well, I supposed they had to get the damned juice up to this point somehow and fairly regular.
The food evaporated from her wooden bowl, and she mopped every last trace of juice up with a piece of tough traveler's bread.
He's got the education, the flexible schedule, the knowledge, and a motive if you figure over and above the thrill, these murders, once it hits the media big, will juice up sales of his books.
It didn't do shit for your self-respect, and it produced some really hideous dreams, but it certainly did juice up the old concentration levels.
Right now, I'm merely trying to juice up our system here to handle the sneak feed once we're on line.