How Do I Replace the Index BPM Batteries?

The battery cover is located along the bottom edge of the device opposite from the display.  Fold back the edge of the cuff material to expose the button to release the cover.  Press the button firmly and lift the cover away from the housing.  The batteries can be replaced.  Make sure to observe the polarity markings when replacing batteries. Index™ BPM Smart Blood Pressure Monitor uses four AAA batteries.