It does have a battery in it and works great with that.  I did not have the power cord. The Casio HR-100TM Printing Calculator is a reliable office equipment designed for adding and tax exchange tasks. With a regular key size and display size, this desktop calculator from Casio is powered by batteries and also compatible with a power cord. The Casio HR-100TM model ensures accurate calculations and printouts, making it a valuable asset for businesses and professionals requiring precise mathematical operations in their day-to-day tasks.