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Care and Maintenance
Replacing the Pen Battery 3
The pen battery has a typical life of about 1 year under normal use. More frequent
use will shorten battery life. The pen uses one size AAAA 1.5 volt alkaline battery. If
your system does not respond to the pen, or your pen is producing unpredictable
results, replace the pen battery. To do so:
1. Open the pen by twisting the pen barrel counterclockwise.
2. Remove the battery from the pen barrel.
3. Observing the polarity mark, insert a new battery into the pen barrel. (Insert the
end of the battery with the negative terminal first.)
Note: You do not need to remove the spring from the pen barrel when you replace the
battery; however, if the spring does come out of the pen barrel when you remove the
battery, insert the spring into the pen barrel, as shown in the illustration, before
you insert the new battery.
4. Close the pen by twisting the pen barrel clockwise.
You can now use the pen as you normally would. You can obtain a replacement
AAAA battery from your local battery reseller or order directly from the following
sources:
• Duracell, Inc. (800) 680-1993
Duracell product number MN2500
• Eveready Battery Company, Inc. (800) 383-7323
Eveready model number E96
AAAA Battery
Polarity Icon
Spring
Pen Barrel