charge up

Verb

 * 1)  To recharge, to give electrical power to something.
 * You should charge up your phone before the camping trip, as there won't be any power supplies.
 * 1)  To motivate, to instill someone with determination.
 * The coach had to charge up his players with a powerful speech before the final.
 * 1)  To deliberately infect (a person) with HIV as part of bug-chasing.