Bank of America Corp. Chief Executive Officer Brian T. Moynihan said resolving investor demands for refunds over faulty mortgages is a battle that will last at least several more quarters. “It’s a day-to-day, hand-to-hand combat,” Moynihan said today during an investor conference held by the lender in New York. “It’s manageable in the context of who we are, but we’re not going to spend your money unwisely.”