Introduction
This manual provides detailed instructions for the MAUL MC8 8-digit desktop calculator. The MC8 is designed for professional, home, and school use, featuring a large angled display, durable plastic buttons, and dual solar/battery power. Please read this manual thoroughly to ensure proper use and longevity of your device.

Image: The MAUL MC8 8-digit desktop calculator, showcasing its compact design and clear display.
Setup
The MAUL MC8 calculator is ready for immediate use. It operates on both solar power and a pre-installed LR1130 battery.
Power Source
- Solar Power: The calculator primarily uses solar energy when sufficient light is available. Ensure the solar panel, located above the display, is exposed to light.
- Battery Power: In low-light conditions, the calculator automatically switches to battery power. An LR1130 battery is included and pre-installed.
Turning On/Off
- Press the ON button to turn on the calculator.
- Press the OFF button to turn off the calculator.
- The calculator features an automatic shutdown function to conserve energy when not in use for a period.
Operating Instructions
The MAUL MC8 calculator provides standard arithmetic functions and several special features.

Image: A close-up view of the MAUL MC8 calculator's display and key layout, highlighting the large, angled screen and distinct function buttons.
Basic Arithmetic Operations
- Addition (+): Enter the first number, press +, enter the second number, then press =.
- Subtraction (-): Enter the first number, press -, enter the second number, then press =.
- Multiplication (x): Enter the first number, press x, enter the second number, then press =.
- Division (÷): Enter the first number, press ÷, enter the second number, then press =.
- Double Zero (00): Use the 00 button for quick entry of two zeros.
Memory Functions
The calculator includes a 3-button memory function.
- M+: Adds the displayed value to the memory.
- M-: Subtracts the displayed value from the memory.
- MR (Memory Recall): Recalls the value stored in memory to the display.
- MC (Memory Clear): Clears the value stored in memory.
Special Functions
- Percentage (%): To calculate a percentage, enter the number, press x, enter the percentage value, then press %. For example, to find 15% of 200: 200 x 15 %.
- Square Root (√): Enter the number, then press the √ button.
- Sign Change (+/-): Changes the sign of the displayed number (positive to negative, or negative to positive).
Clearing Entries
- CE (Clear Entry): Clears the last entered number or calculation, allowing you to correct mistakes without clearing the entire operation.
- C (Clear All): Clears all entries and calculations, resetting the calculator to zero.
Maintenance
Cleaning
To clean the calculator, use a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, but ensure no liquid enters the device. Avoid abrasive cleaners or solvents.
Battery Replacement
The MAUL MC8 uses one LR1130 battery. If the display becomes dim or unresponsive in low light despite sufficient solar exposure, the battery may need replacement.
- Turn off the calculator.
- Locate the battery compartment on the back of the calculator.
- Carefully open the compartment cover.
- Remove the old LR1130 battery.
- Insert a new LR1130 battery with the correct polarity (+ side up).
- Close the battery compartment cover securely.
Dispose of used batteries according to local regulations.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Display is blank or dim. | Insufficient light for solar power, or low battery. | Move the calculator to a well-lit area. If the problem persists, replace the LR1130 battery. |
| Incorrect calculation results. | Incorrect key input, or previous calculation not cleared. | Press C to clear all entries and restart the calculation. Double-check your input. |
| Keys are unresponsive. | Calculator may be off, or battery is completely drained. | Press ON. Ensure sufficient light for solar power or replace the battery. |
Specifications

Image: The MAUL MC8 calculator displaying its physical dimensions of 13.7 cm length and 10.3 cm width.
| Feature | Detail |
|---|---|
| Model | MAUL MC8 (Model No. 7265090) |
| Display | 8-digit LCD, 1-line, angled for readability |
| Power Source | Solar and Battery (1 x LR1130 included) |
| Functions | Basic arithmetic, percentage, square root, sign change, 3-button memory, double-zero button |
| Automatic Shutdown | Yes |
| Material | Plastic keys and casing |
| Dimensions (L x W x H) | 13.7 cm x 10.3 cm x 0.1 cm (approximate thickness) |
| Weight | 98 g |
Warranty and Support
Warranty
The MAUL MC8 calculator comes with a 5-year warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
Customer Support
For further assistance, technical support, or warranty inquiries, please contact MAUL customer service through their official website or the retailer where the product was purchased.







