charge up vs excite

charge up

verb
  • To motivate, to instill someone with determination. 

  • To recharge, to give electrical power to something. 

  • To deliberately infect an individual with HIV as part of bug-chasing. 

excite

verb
  • To arouse or bring out (e.g. feelings); to stimulate. 

  • To cause an electron to move to a higher than normal state; to promote an electron to an outer level. 

  • To energize (an electromagnet); to produce a magnetic field in. 

  • To stir the emotions of. 

How often have the words charge up and excite occurred in a corpus of books? (source: Google Ngram Viewer )