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| [title] Replace the battery | |
| - | [* icon_note] The FX-991EX uses |
| + | [* icon_note] The FX-991EX uses a 1.5V LR44 battery. |
| [* green] Slot the new battery into the compartment. Ensure that the positive side (with writing) faces up... | |
| [* red] And the negative side faces the calculator's screen. |