Nail grip, Warning – HP 48g Graphing Calculator User Manual
Page 444
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CSUtion
Make sure you turn on the calculator before you
change a RAM card battery. RAM cards run off the
calculator batteries only while the calculator is on.
—
RAM memory may be lost if you remove a RAM
card battery while the calculator is off, or while the
card is not installed in the calculator.
3. Place your index finger in the recess near the exposed end of the
RAM card—this prevents removal of the card from the calculator
when you remove the card’s battery holder. Now insert the
thumbnail of your free hand into the nail grip in the black plastic
at the left side of the end of the card and pull the battery holder
out of the card.
Nail grip
4. Remove the old battery from the plastic battery holder.
Warning
Do not mutilate, puncture, or dispose of batteries
in fire. The batteries can burst or explode,
releasing hazardous chemicals. Discard used
batteries according to the manufacturer’s
instructions.
A-8 Support, Batteries, and Service