What would happen if a Mega Kangaskhan used Giga Impact?

Question

Would it attack once then recharge, attack twice then recharge for 2 turns or would it attack twice and just rest for 1 turn?

Answer 1

Moves that require the user to recharge after use like Hyper Beam hit twice, and the user only needs to recharge for one turn.

So it only has to recharge for one turn.

Source