はじめに
When you remove your calculators AAA batteries, or if they die, the backup battery powers the calculator so your information is not lost. If you seem to lose programs or variables in your calculator, you may want to replace your backup battery.
必要な工具と部品
もう少しです!
To reassemble your device, follow these instructions in reverse order.
終わりに
To reassemble your device, follow these instructions in reverse order.