Using this paper towel dispenser is easy. First, if you choose to use batteries, insert 4 'D' alkaline batteries into the designated compartment. Or, you can connect it to a 6 - volt DC power supply using Part# 3974 - 57. When it's time to refill the paper towels, open the locking cabinet. Make sure to keep the dispenser away from water to avoid damage. Periodically clean the plastic surface with a soft, damp cloth to keep it looking nice. And always check the battery level or the power connection if the dispenser stops working.