Michelle and Jill rally female voters

CHARLOTTE, N.C. – Michelle ObamaMichelle LeVaughn Robinson ObamaAl Sharpton: Royal wedding shows white supremacy is ‘on its last breath' Meghan Markle's pre-royal 'finishing lessons' and an etiquette of equality Place your royal wedding bets: Website offers odds on surprise American guests MORE and Jill Biden on Thursday rallied female voters, plead for donations and urged women to participate in the campaign during morning speeches to a raucous Women’s Caucus at the Charlotte Convention Center.

Several hundred convention-goers gathered in a crowded ballroom, chanting “fired up and ready to go!” in response to a video featuring the president, which got a standing ovation before Obama and Biden even took the stage.

Biden opened with a brief talk focused primarily on the women’s issues the campaign pushed earlier in the cycle, when Democrats argued that Republicans were looking to “turn back the clock.”

“We can’t go back and fight the same battles we’ve fought,” Biden said. “We’ve been fighting them for years, and even decades, and believe me, I’m old enough that I know those fights from the 1960s … The choice women face in this election couldn’t be more clear. The one thing we know is that our president and our vice president have our backs. But we’ve got to make sure that the other women in our lives know just how important it is that we’ve got Joe and Barack’s backs as well.”

But after her well-received Tuesday night address, the popular first lady was the main event.

In her speech, Obama nodded to another speech that left Democrats buzzing – President Clinton’s Wednesday night headliner.

“I think that President Clinton did a phenomenal job last night,” she said to big applause. “I think that he and the other speakers once again reminded us of the vision and the values we all share.”

The first lady urged voters to help out with the campaign.

“If you don’t live in a battleground state, get to one,” she said.

“If you can afford it, write a check. If you haven’t maxed out, max out,” she added. “This one could come down to those last few thousand votes in a battleground state.”

President Obama has a big lead over Mitt Romney among women, and in a close election, Democrats are hoping to exploit that advantage. They had several high-profile women address the Democratic National Convention and emphasized the president's work on women's issues.

Sandra Fluke, the Georgetown University law student who became a national figure during the debate over the administration’s contraception mandate, had a prime-time speaking slot at the convention on Wednesday night.