Appendix A: Batteries and Answers to Common Questions

Power and Batteries

The calculator is powered by two 3-volt lithium button-cell batteries, CR2032.

When changing batteries, use only fresh button-cell batteries. Both batteries must be changed at the same time.

Do not use rechargeable batteries.

Low Power Annunciator

When the low battery-power annunciator () comes on, you should replace the batteries as soon as possible. If the battery annunciator is on and the display dims, you may lose data. The All Clear message is displayed if data is lost due to low power.

Installing Batteries

Warning! There is a danger of explosion if batteries are incorrectly replaced.

Replace only with the same type of battery or with equivalent batteries (as recommended by the manufacturer). Dispose of used batteries according to the manufacturer’s instructions.

•The calculator is powered by two 3-volt CR2032 coin batteries.

•When changing batteries, use only fresh coin-cell batteries. Do not use rechargeable batteries.

•Do not mutilate, puncture, or dispose of batteries in fire. The batteries can burst or explode, releasing hazardous chemicals.

•Do not use new and old batteries together, and do not mix batteries of different types.

1.Have two fresh CR2032 batteries at hand. Only touch the batteries by their edges. Wipe each battery with a lint-free cloth to remove dirt and oil.

2.Make sure the calculator is off. When changing the batteries, change the batteries one at a time to avoid clearing the memory. As a back-up, write down any data that you have stored and might need for later use.

3.Turn the calculator over and pry off the battery cover.

Accessing the battery compartment

4.Gently remove one battery.

5.Insert the new battery, making sure that the positive sign (+) battery is facing outward.

6.Gently remove the other battery.

Appendix A: Batteries and Answers to Common Questions

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