All-rounder Ellyse Perry led an impressive comeback with the ball as Australia claimed a 53-run win over the West Indies and a 2-0 lead in the four-match one-day series.
The West Indies appeared on track to chase down Australia's tally of 256 at Hurstville Oval following a 115-run opening partnership between Kycia Knight and Hayley Matthews.
However when Erin Osborne trapped Knight lbw for 45 the West Indies lost all momentum against a disciplined bowling attack, eventually stumbling to 8-203 from their 50 overs.
Matthews top-scored with an impressive 89 but there was little support from her teammates with the West Indies clearly missing star bat Stafanie Taylor who was unable to play due to illness.
All-rounder Perry was the chief destroyer claiming 3-42 off her ten overs, and the Sydneysider collected the player of the match award after also hitting a quickfire 72 in Australia's innings.
"It was a really good, tough match," said Perry.
"It was a tight contest all the way until the final ten overs.
"It is pleasing to keep winning, and knowing how to find a way to win is a real positive as well."
Opener Nicole Bolton top-scored with her 76, laying a strong foundation for another confident top-order batting display from Australia who defeated the West Indies 4-0 in last week's Twenty20 series.
The in-form Victorian crafted a confident innings for her second 50 on the trot, taking her international run-tally to 442 in just eight matches.
Perry's arrival boosted an already solid run-rate with the 24-year-old also notching a second successive half-century.
The all-rounder seemed on target for a maiden one-day international ton only to fall victim to a juggling Knight catch on the boundary, having made her 72 from just 74 deliveries.
As was the case in Tuesday's three-wicket win, the Australians lost a host of late wickets, eventually being all out for 256 after Rene Farrell was run out on the final ball of the innings.
Deandra Dottin claimed the best figures for the West Indies, picking up 4-42 off eight overs.
The win also extends Australia's lead over the second-placed West Indies on the ICC Women's Championship ladder.
