If Australia is successful against England it will be their first trophy in the 20-over game in two and a half years. 

The last time Australia had a piece of T20 silverware was their series win against Ireland in 2015 but since then they have suffered series losses to England, New Zealand and India.

"For us, we are just hoping to put another consistent performance out there," Jonassen said.

"Just back our plans and hopefully the result will take care of itself.

"It has been a while since we had a T20 series win so I think if we get over the line tomorrow the girls will be pleased with that," she said.

Australia has momentum on their side having won the most recent T20 game against England in a strong bowling performance. 

While England comes off two losses with the last being a seven wicket loss to India.

"The girls are really confident at the moment, we've got a lot of players inform and everybody seems to be backing their skills," Jonassen said.

"Hopefully we can do that for one more game," she said.

Australia will be hoping opener Beth Mooney will be fit to rejoin the squad after sitting out against England on Wednesday with a mild abdominal strain. 

Vice-captain Rachael Haynes was absence from the training session on Friday due to illness. 

Jonassen is positive that no matter which way Australia lines-up they will be able to do the job and adapt.

"The girls are able to adapt on the spot," she said.

"I think at any given stage of the match our whole batting unit will be able to do that and that's a very exciting place for us to be in."

The T20 Tri-Series final between Australia and England will be broadcast in Australia on Fox Sports 3HD from 3.30pm AEDT.