Each
pen uses one AA battery. Replace the battery as
soon as it runs out.
Remove the battery cover as shown.
Insert the battery with the + and –
ends facing as shown.
Warning: Make
sure the batteries are inserted in the correct positions. If the
batteries are not inserted correctly, they could explode or leak,
causing a fire, injury, or damage to the product.
Replace the battery cover and press it down
until it clicks into place.
Warning:
Dispose of used batteries according to local regulations. Do not
expose batteries to heat or flame. Keep batteries out of the reach
of children; they are choking hazards and are very dangerous if
swallowed.