After being sent in to bat in the third and final match of the series, Australia smashed 4-180 with Voll and fellow opener Beth Mooney (21) again leading the way.
Voll whacked 75 from 57 balls, surpassing her previous best of 50, before she was bowled by New Zealand captain Suzie Bates.
The opening pair registered their third-straight stand of more than 50 after dominating in Auckland and Tauranga.
The 21-year-old rode her luck during the innings, dropped three times by the sloppy hosts.
"I think I'm going to head to the lotto store and buy one (a ticket) after this game," Voll said.
"It was nice to be able to come out the other side, battle a little bit, but to get us in a good position was pleasing."
Voll has made a huge impact since making her Australian debut last December, filling in at the top of the order for injured captain Alyssa Healy.
Star allrounder Ellyse Perry hit an unbeaten 32 to power Australia to an imposing total once Voll was dismissed in the 15th over.
Bates, Amelia Kerr, Rosemary Mair and Sophie Devine all took one wicket each for New Zealand, who won last year's T20 World Cup.
Devine, who has only recently returned to cricket following a mental health break, became visibly emotional during the anthem before the match
Quick Darcie Brown flew back to Australia for family reasons, with veteran Megan Schutt replacing her in the XI.
New Zealand also made one change, dropping Lea Tahuhu and including allrounder Bella James and listing her to bat at No.4.
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