A Monroe County or Lawrence County native, he attended the state university for a year before studying law for a year at the office of Buskirk & Duncan in Bloomington. He received his law degree in 1885.
Batman then spent a year in Nebraska before forming a successful Bloomington law partnership with Henry Duncan, which continued until Duncan's death in 1911. Batman then entered into a partnership with Robert G. Miller and James W. Blair.
Batman served as attorney for the city of Bloomington for thirteen years and was county attorney for two years. In 1905 he was elected to the state legislature. He was also vice president of the First National Bank and served on the board of directors for that enterprise and also the Citizens Loan and Trust Company.
The Ira C. Batman Faculty Fellowships were established in 1983 by the Emma B. Riley Charitable Trust, providing for the fellowships to be named in honor of her father.