energize

excite, energize, energise - v 
raise to a higher energy level; "excite the atoms" 

wordplays

Energize means to raise the energy level of something. If your really boring teacher suddenly starts throwing M&Ms to every student with a correct answer, he will energize the classroom.

Ever seen the Energizer Bunny––the one who "keeps going and going and going?" It's because he's energized by long-lasting batteries that he has the energy to beat that drum over and over. Someone who's feeling low on energy might be reenergized by a cat nap or a candy bar.

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synonyms

amp (up), animate, brace, enliven, fillip, fire, ginger (up), invigorate, jazz (up), juice up, jump-start, liven (up), pep (up), quicken, spike, stimulate, vitalize, vivify, zip (up)

merriam-webster