This scale is a battery hog, wrote Jason. Yes it is.It uses two CR2032 button cells. Each cell is rated at 240 mAh from 3V (new) down to 2V. The scale is poorly designed in that it quits working, and starts flashing the battery icon, while the series voltage is still above 5.36V. If it were properly designed it would work all the way from 6V down to 4V.I bought new batteries today. They cost $4.89 for the pair.