Einleitung
You will need to have a supply of AAA batteries for replacement. Can be found at most hardware and department stores. You can also order them online here
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            Install two AAA alkaline batteries into the battery compartment, placing the positive and negative ends of the battery in the correct positions. (Shown as a diagram inside the battery compartment) 
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            Make sure to remove one battery at a time and replace with fresh battery. This will retain information on the device. 
 
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            Place the battery door back into place on the back of the device; it will make a 'click' sound when properly reattached. 
 
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To reassemble your device, follow these instructions in reverse order.
Ein Kommentar
"Moderate difficulty"?? There's only three steps and two of them involve removing and reinstalling the battery door.