charge up vs turn on

charge up and turn on both are verbs.

Word	Noun	Adjective	Verb	Adverb
charge up	No	No	Yes	No
turn on	No	No	Yes	No

As verbs, charge up and turn on are synonyms defined as:

Other synonyms of charge up include agitate, charge, commove, excite, rouse.

charge up (verb)	turn on (verb)
cause to be agitated, excited, or roused	become hostile towards
	get high, stoned, or drugged
	cause to operate by flipping a switch
	to evoke sexual feelings
	cause to be agitated, excited, or roused
	produce suddenly or automatically
	be contingent on