Australia are on the verge of completing one of the most prolific ODI series with the bat, having already wrapped up victory with two wins in Sydney.

A score of 204 or more in game three in Canberra on Wednesday will mark Australia's most high-scoring three-match one-day series in history, while 292 would break a world record.

Significantly, the Test players have done the damage, with Labuschagne labelling Steve Smith's second straight 62-ball century on Sunday one of the best he has seen.

David Warner is now under a groin injury cloud, but he scored 69 in the first game before being run out for 83 in the second.

Labuschagne himself struck 70 on Sunday, after hitting two tons to start his Sheffield Shield season.

Three T20s follow Wednesday's final one-dayer, before the four-Test series against India begins in Adelaide on December 17.

"100 per cent (you can take an advantage)," Labuschagne said on Monday.

"Cricket is a massive confidence game and even though it's a different format it still gives you a lot of confidence when you are scoring runs consistently.

"And the way Steve and Davey are batting currently, I have no doubt they will be able to transfer that into the Test summer.

"But right now, there are still a lot of games to be played before that."

India's attack will remain much the same for the Test series, with Ishant Sharma out injured.

Quicks Mohammed Shami and Jasprit Bumrah have both been hit around in the ODIs, with Australia's series run-rate of 7.63 their highest in any one-day series.

Their spinner Ravindra Jadeja is yet to take a wicket, while Mitchell Starc is the only Australian bowler with concerning figures.

Labuschagne believes Australia's recent red-ball experience will also help in the upcoming Tests.

At least seven of Australia's likely team for the first Test in Adelaide played in the Sheffield Shield.

Conversely, India's players have not featured in a Test or first-class match since early March, though they have two three-day warm-up games before the Border-Gavaskar opener.

"It's a slight advantage that four out of our top six have been playing Shield and have that rhythm as a batting group," Labuschagne said.

"But a lot of these (India) players we are talking about that haven't played Shield or four-day cricket, they have been doing it for a long time.

"So I would be surprise if they didn't shift back into gear quickly."

Australian Associated Press